diff --git a/homeassistant/components/abode/__init__.py b/homeassistant/components/abode/__init__.py
index 957b2510d51..591bae1a9cf 100644
--- a/homeassistant/components/abode/__init__.py
+++ b/homeassistant/components/abode/__init__.py
@@ -13,7 +13,7 @@ from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers import discovery
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['abodepy==0.15.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/abode/alarm_control_panel.py b/homeassistant/components/abode/alarm_control_panel.py
index 4c5aa15aa13..d7426e04166 100644
--- a/homeassistant/components/abode/alarm_control_panel.py
+++ b/homeassistant/components/abode/alarm_control_panel.py
@@ -8,7 +8,7 @@ from homeassistant.const import (
 
 from . import ATTRIBUTION, DOMAIN as ABODE_DOMAIN, AbodeDevice
 
-
+DEPENDENCIES = ['abode']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/abode/binary_sensor.py b/homeassistant/components/abode/binary_sensor.py
index bb3ada24503..874723420ed 100644
--- a/homeassistant/components/abode/binary_sensor.py
+++ b/homeassistant/components/abode/binary_sensor.py
@@ -7,7 +7,7 @@ from . import DOMAIN as ABODE_DOMAIN, AbodeAutomation, AbodeDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['abode']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/abode/camera.py b/homeassistant/components/abode/camera.py
index 51d795f09ed..d37644eccc3 100644
--- a/homeassistant/components/abode/camera.py
+++ b/homeassistant/components/abode/camera.py
@@ -9,7 +9,7 @@ from homeassistant.util import Throttle
 
 from . import DOMAIN as ABODE_DOMAIN, AbodeDevice
 
-
+DEPENDENCIES = ['abode']
 
 MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=90)
 
diff --git a/homeassistant/components/abode/cover.py b/homeassistant/components/abode/cover.py
index b979bd3b2eb..c40159164dc 100644
--- a/homeassistant/components/abode/cover.py
+++ b/homeassistant/components/abode/cover.py
@@ -5,7 +5,7 @@ from homeassistant.components.cover import CoverDevice
 
 from . import DOMAIN as ABODE_DOMAIN, AbodeDevice
 
-
+DEPENDENCIES = ['abode']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/abode/light.py b/homeassistant/components/abode/light.py
index 728ec6c64bc..9e88acce41f 100644
--- a/homeassistant/components/abode/light.py
+++ b/homeassistant/components/abode/light.py
@@ -10,7 +10,7 @@ from homeassistant.util.color import (
 
 from . import DOMAIN as ABODE_DOMAIN, AbodeDevice
 
-
+DEPENDENCIES = ['abode']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/abode/lock.py b/homeassistant/components/abode/lock.py
index eec1c6f0091..0f568a4ace2 100644
--- a/homeassistant/components/abode/lock.py
+++ b/homeassistant/components/abode/lock.py
@@ -5,7 +5,7 @@ from homeassistant.components.lock import LockDevice
 
 from . import DOMAIN as ABODE_DOMAIN, AbodeDevice
 
-
+DEPENDENCIES = ['abode']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/abode/sensor.py b/homeassistant/components/abode/sensor.py
index 40d83676333..ef6941c76d8 100644
--- a/homeassistant/components/abode/sensor.py
+++ b/homeassistant/components/abode/sensor.py
@@ -8,7 +8,7 @@ from . import DOMAIN as ABODE_DOMAIN, AbodeDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['abode']
 
 # Sensor types: Name, icon
 SENSOR_TYPES = {
diff --git a/homeassistant/components/abode/switch.py b/homeassistant/components/abode/switch.py
index 9a0e4c5c123..3e3ce031855 100644
--- a/homeassistant/components/abode/switch.py
+++ b/homeassistant/components/abode/switch.py
@@ -7,7 +7,7 @@ from . import DOMAIN as ABODE_DOMAIN, AbodeAutomation, AbodeDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['abode']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/acer_projector/switch.py b/homeassistant/components/acer_projector/switch.py
index a9e4ef46b6f..df6fb8816aa 100644
--- a/homeassistant/components/acer_projector/switch.py
+++ b/homeassistant/components/acer_projector/switch.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
     STATE_ON, STATE_OFF, STATE_UNKNOWN, CONF_NAME, CONF_FILENAME)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pyserial==3.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ads/__init__.py b/homeassistant/components/ads/__init__.py
index 4930e315ac5..92c6ecb3335 100644
--- a/homeassistant/components/ads/__init__.py
+++ b/homeassistant/components/ads/__init__.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['pyads==3.0.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ads/binary_sensor.py b/homeassistant/components/ads/binary_sensor.py
index 0a50ba6b20f..baa44cb498f 100644
--- a/homeassistant/components/ads/binary_sensor.py
+++ b/homeassistant/components/ads/binary_sensor.py
@@ -13,7 +13,7 @@ from . import CONF_ADS_VAR, DATA_ADS, AdsEntity, STATE_KEY_STATE
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'ADS binary sensor'
-
+DEPENDENCIES = ['ads']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_ADS_VAR): cv.string,
diff --git a/homeassistant/components/ads/light.py b/homeassistant/components/ads/light.py
index c808b54ca8a..49961565dce 100644
--- a/homeassistant/components/ads/light.py
+++ b/homeassistant/components/ads/light.py
@@ -12,7 +12,7 @@ from . import CONF_ADS_VAR, CONF_ADS_VAR_BRIGHTNESS, DATA_ADS, \
     AdsEntity, STATE_KEY_BRIGHTNESS, STATE_KEY_STATE
 
 _LOGGER = logging.getLogger(__name__)
-
+DEPENDENCIES = ['ads']
 DEFAULT_NAME = 'ADS Light'
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_ADS_VAR): cv.string,
diff --git a/homeassistant/components/ads/sensor.py b/homeassistant/components/ads/sensor.py
index 5a313e6ba97..e74b8753d4b 100644
--- a/homeassistant/components/ads/sensor.py
+++ b/homeassistant/components/ads/sensor.py
@@ -14,7 +14,7 @@ from . import CONF_ADS_FACTOR, CONF_ADS_TYPE, CONF_ADS_VAR, \
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = "ADS sensor"
-
+DEPENDENCIES = ['ads']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_ADS_VAR): cv.string,
diff --git a/homeassistant/components/ads/switch.py b/homeassistant/components/ads/switch.py
index 6b86f208a4c..0dfbeb811a0 100644
--- a/homeassistant/components/ads/switch.py
+++ b/homeassistant/components/ads/switch.py
@@ -11,7 +11,7 @@ from . import CONF_ADS_VAR, DATA_ADS, AdsEntity, STATE_KEY_STATE
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['ads']
 
 DEFAULT_NAME = 'ADS Switch'
 
diff --git a/homeassistant/components/aftership/sensor.py b/homeassistant/components/aftership/sensor.py
index 9e367d316f7..18bc3cb3430 100644
--- a/homeassistant/components/aftership/sensor.py
+++ b/homeassistant/components/aftership/sensor.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['pyaftership==0.1.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/airvisual/sensor.py b/homeassistant/components/airvisual/sensor.py
index 563784e634e..7fad7bb35be 100644
--- a/homeassistant/components/airvisual/sensor.py
+++ b/homeassistant/components/airvisual/sensor.py
@@ -13,7 +13,7 @@ from homeassistant.helpers import aiohttp_client, config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['pyairvisual==3.0.1']
 _LOGGER = getLogger(__name__)
 
 ATTR_CITY = 'city'
diff --git a/homeassistant/components/aladdin_connect/cover.py b/homeassistant/components/aladdin_connect/cover.py
index 8156565a59f..01146fecbb6 100644
--- a/homeassistant/components/aladdin_connect/cover.py
+++ b/homeassistant/components/aladdin_connect/cover.py
@@ -9,7 +9,7 @@ from homeassistant.const import (CONF_USERNAME, CONF_PASSWORD, STATE_CLOSED,
                                  STATE_OPENING, STATE_CLOSING, STATE_OPEN)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['aladdin_connect==0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/alarmdecoder/__init__.py b/homeassistant/components/alarmdecoder/__init__.py
index 366a6f48b79..5b1296b39de 100644
--- a/homeassistant/components/alarmdecoder/__init__.py
+++ b/homeassistant/components/alarmdecoder/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.helpers.discovery import load_platform
 from homeassistant.util import dt as dt_util
 from homeassistant.components.binary_sensor import DEVICE_CLASSES_SCHEMA
 
-
+REQUIREMENTS = ['alarmdecoder==1.13.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/alarmdecoder/alarm_control_panel.py b/homeassistant/components/alarmdecoder/alarm_control_panel.py
index 3ab1f729813..d7eced933dd 100644
--- a/homeassistant/components/alarmdecoder/alarm_control_panel.py
+++ b/homeassistant/components/alarmdecoder/alarm_control_panel.py
@@ -13,7 +13,7 @@ from . import DATA_AD, SIGNAL_PANEL_MESSAGE
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['alarmdecoder']
 
 SERVICE_ALARM_TOGGLE_CHIME = 'alarmdecoder_alarm_toggle_chime'
 ALARM_TOGGLE_CHIME_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/alarmdecoder/binary_sensor.py b/homeassistant/components/alarmdecoder/binary_sensor.py
index 727dd976cef..09e63b4d664 100644
--- a/homeassistant/components/alarmdecoder/binary_sensor.py
+++ b/homeassistant/components/alarmdecoder/binary_sensor.py
@@ -8,7 +8,7 @@ from . import (
     CONF_ZONE_RFID, CONF_ZONE_TYPE, CONF_ZONES, SIGNAL_REL_MESSAGE,
     SIGNAL_RFX_MESSAGE, SIGNAL_ZONE_FAULT, SIGNAL_ZONE_RESTORE, ZONE_SCHEMA)
 
-
+DEPENDENCIES = ['alarmdecoder']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/alarmdecoder/sensor.py b/homeassistant/components/alarmdecoder/sensor.py
index 5b92b15d955..88371dad17a 100644
--- a/homeassistant/components/alarmdecoder/sensor.py
+++ b/homeassistant/components/alarmdecoder/sensor.py
@@ -7,7 +7,7 @@ from . import SIGNAL_PANEL_MESSAGE
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['alarmdecoder']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/alarmdotcom/alarm_control_panel.py b/homeassistant/components/alarmdotcom/alarm_control_panel.py
index 88f38ed0ebc..ea581aca747 100644
--- a/homeassistant/components/alarmdotcom/alarm_control_panel.py
+++ b/homeassistant/components/alarmdotcom/alarm_control_panel.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pyalarmdotcom==0.3.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/alexa/__init__.py b/homeassistant/components/alexa/__init__.py
index 9422d08e062..062d698d512 100644
--- a/homeassistant/components/alexa/__init__.py
+++ b/homeassistant/components/alexa/__init__.py
@@ -17,7 +17,7 @@ _LOGGER = logging.getLogger(__name__)
 CONF_FLASH_BRIEFINGS = 'flash_briefings'
 CONF_SMART_HOME = 'smart_home'
 
-
+DEPENDENCIES = ['http']
 
 ALEXA_ENTITY_SCHEMA = vol.Schema({
     vol.Optional(smart_home.CONF_DESCRIPTION): cv.string,
diff --git a/homeassistant/components/alpha_vantage/sensor.py b/homeassistant/components/alpha_vantage/sensor.py
index f28cbb8f4f1..0eb57e5b27a 100644
--- a/homeassistant/components/alpha_vantage/sensor.py
+++ b/homeassistant/components/alpha_vantage/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['alpha_vantage==2.1.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/amazon_polly/tts.py b/homeassistant/components/amazon_polly/tts.py
index 606135ef0b6..d29ae32fb57 100644
--- a/homeassistant/components/amazon_polly/tts.py
+++ b/homeassistant/components/amazon_polly/tts.py
@@ -6,7 +6,7 @@ import voluptuous as vol
 from homeassistant.components.tts import PLATFORM_SCHEMA, Provider
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['boto3==1.9.16']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ambient_station/__init__.py b/homeassistant/components/ambient_station/__init__.py
index 1287911f357..944d4e14e7d 100644
--- a/homeassistant/components/ambient_station/__init__.py
+++ b/homeassistant/components/ambient_station/__init__.py
@@ -20,7 +20,7 @@ from .const import (
     ATTR_LAST_DATA, CONF_APP_KEY, DATA_CLIENT, DOMAIN, TOPIC_UPDATE,
     TYPE_BINARY_SENSOR, TYPE_SENSOR)
 
-
+REQUIREMENTS = ['aioambient==0.3.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ambient_station/binary_sensor.py b/homeassistant/components/ambient_station/binary_sensor.py
index 4ea3abf47b2..04a38901683 100644
--- a/homeassistant/components/ambient_station/binary_sensor.py
+++ b/homeassistant/components/ambient_station/binary_sensor.py
@@ -12,7 +12,7 @@ from .const import ATTR_LAST_DATA, DATA_CLIENT, DOMAIN, TYPE_BINARY_SENSOR
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['ambient_station']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/ambient_station/sensor.py b/homeassistant/components/ambient_station/sensor.py
index 416088c02a6..b394dc558e6 100644
--- a/homeassistant/components/ambient_station/sensor.py
+++ b/homeassistant/components/ambient_station/sensor.py
@@ -8,7 +8,7 @@ from .const import ATTR_LAST_DATA, DATA_CLIENT, DOMAIN, TYPE_SENSOR
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['ambient_station']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/amcrest/__init__.py b/homeassistant/components/amcrest/__init__.py
index c69b404b011..a4c020efcdf 100644
--- a/homeassistant/components/amcrest/__init__.py
+++ b/homeassistant/components/amcrest/__init__.py
@@ -12,8 +12,8 @@ from homeassistant.const import (
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 
-
-
+REQUIREMENTS = ['amcrest==1.3.0']
+DEPENDENCIES = ['ffmpeg']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/amcrest/binary_sensor.py b/homeassistant/components/amcrest/binary_sensor.py
index d339c4dac83..113918ed041 100644
--- a/homeassistant/components/amcrest/binary_sensor.py
+++ b/homeassistant/components/amcrest/binary_sensor.py
@@ -7,7 +7,7 @@ from homeassistant.components.binary_sensor import (
 from homeassistant.const import CONF_NAME, CONF_BINARY_SENSORS
 from . import DATA_AMCREST, BINARY_SENSORS
 
-
+DEPENDENCIES = ['amcrest']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/amcrest/camera.py b/homeassistant/components/amcrest/camera.py
index 98ef9fa15ac..f361c4e0183 100644
--- a/homeassistant/components/amcrest/camera.py
+++ b/homeassistant/components/amcrest/camera.py
@@ -12,7 +12,7 @@ from homeassistant.helpers.aiohttp_client import (
 
 from . import DATA_AMCREST, STREAM_SOURCE_LIST, TIMEOUT
 
-
+DEPENDENCIES = ['amcrest', 'ffmpeg']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/amcrest/sensor.py b/homeassistant/components/amcrest/sensor.py
index 2ca1c45767b..119520e6a03 100644
--- a/homeassistant/components/amcrest/sensor.py
+++ b/homeassistant/components/amcrest/sensor.py
@@ -7,7 +7,7 @@ from homeassistant.helpers.entity import Entity
 
 from . import DATA_AMCREST, SENSORS
 
-
+DEPENDENCIES = ['amcrest']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/amcrest/switch.py b/homeassistant/components/amcrest/switch.py
index 5fe89b37ef6..0bbd290b3ac 100644
--- a/homeassistant/components/amcrest/switch.py
+++ b/homeassistant/components/amcrest/switch.py
@@ -8,7 +8,7 @@ from . import DATA_AMCREST, SWITCHES
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['amcrest']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/ampio/air_quality.py b/homeassistant/components/ampio/air_quality.py
index 9ba9652607c..f7aa98aec7c 100644
--- a/homeassistant/components/ampio/air_quality.py
+++ b/homeassistant/components/ampio/air_quality.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['asmog==0.0.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/android_ip_webcam/__init__.py b/homeassistant/components/android_ip_webcam/__init__.py
index d78b1a7f1ce..600efd55a16 100644
--- a/homeassistant/components/android_ip_webcam/__init__.py
+++ b/homeassistant/components/android_ip_webcam/__init__.py
@@ -21,7 +21,7 @@ from homeassistant.util.dt import utcnow
 from homeassistant.components.mjpeg.camera import (
     CONF_MJPEG_URL, CONF_STILL_IMAGE_URL)
 
-
+REQUIREMENTS = ['pydroid-ipcam==0.8']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/android_ip_webcam/binary_sensor.py b/homeassistant/components/android_ip_webcam/binary_sensor.py
index 8832b62be44..c058c44c503 100644
--- a/homeassistant/components/android_ip_webcam/binary_sensor.py
+++ b/homeassistant/components/android_ip_webcam/binary_sensor.py
@@ -3,7 +3,7 @@ from homeassistant.components.binary_sensor import BinarySensorDevice
 
 from . import CONF_HOST, CONF_NAME, DATA_IP_WEBCAM, KEY_MAP, AndroidIPCamEntity
 
-
+DEPENDENCIES = ['android_ip_webcam']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/android_ip_webcam/sensor.py b/homeassistant/components/android_ip_webcam/sensor.py
index 72475962cec..4d29493d64f 100644
--- a/homeassistant/components/android_ip_webcam/sensor.py
+++ b/homeassistant/components/android_ip_webcam/sensor.py
@@ -5,7 +5,7 @@ from . import (
     CONF_HOST, CONF_NAME, CONF_SENSORS, DATA_IP_WEBCAM, ICON_MAP, KEY_MAP,
     AndroidIPCamEntity)
 
-
+DEPENDENCIES = ['android_ip_webcam']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/android_ip_webcam/switch.py b/homeassistant/components/android_ip_webcam/switch.py
index 3c0792688be..0304c5747f7 100644
--- a/homeassistant/components/android_ip_webcam/switch.py
+++ b/homeassistant/components/android_ip_webcam/switch.py
@@ -5,7 +5,7 @@ from . import (
     CONF_HOST, CONF_NAME, CONF_SWITCHES, DATA_IP_WEBCAM, ICON_MAP, KEY_MAP,
     AndroidIPCamEntity)
 
-
+DEPENDENCIES = ['android_ip_webcam']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/androidtv/media_player.py b/homeassistant/components/androidtv/media_player.py
index e3f7538da1c..706ef6f8402 100644
--- a/homeassistant/components/androidtv/media_player.py
+++ b/homeassistant/components/androidtv/media_player.py
@@ -18,7 +18,7 @@ import homeassistant.helpers.config_validation as cv
 
 ANDROIDTV_DOMAIN = 'androidtv'
 
-
+REQUIREMENTS = ['androidtv==0.0.15']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/anel_pwrctrl/switch.py b/homeassistant/components/anel_pwrctrl/switch.py
index 244b6394fa2..b9b3070b97e 100644
--- a/homeassistant/components/anel_pwrctrl/switch.py
+++ b/homeassistant/components/anel_pwrctrl/switch.py
@@ -10,7 +10,7 @@ from homeassistant.components.switch import (SwitchDevice, PLATFORM_SCHEMA)
 from homeassistant.const import (CONF_HOST, CONF_PASSWORD, CONF_USERNAME)
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['anel_pwrctrl-homeassistant==0.0.1.dev2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/anthemav/media_player.py b/homeassistant/components/anthemav/media_player.py
index 03a51ac8517..c7ee579bc17 100644
--- a/homeassistant/components/anthemav/media_player.py
+++ b/homeassistant/components/anthemav/media_player.py
@@ -13,7 +13,7 @@ from homeassistant.const import (
     STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['anthemav==1.1.10']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/apcupsd/__init__.py b/homeassistant/components/apcupsd/__init__.py
index bc73918b334..aab6f6dda01 100644
--- a/homeassistant/components/apcupsd/__init__.py
+++ b/homeassistant/components/apcupsd/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.const import (CONF_HOST, CONF_PORT)
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['apcaccess==0.0.13']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/apcupsd/binary_sensor.py b/homeassistant/components/apcupsd/binary_sensor.py
index 08bcd9918ad..445dab9b074 100644
--- a/homeassistant/components/apcupsd/binary_sensor.py
+++ b/homeassistant/components/apcupsd/binary_sensor.py
@@ -8,7 +8,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.components import apcupsd
 
 DEFAULT_NAME = 'UPS Online Status'
-
+DEPENDENCIES = [apcupsd.DOMAIN]
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
diff --git a/homeassistant/components/apcupsd/sensor.py b/homeassistant/components/apcupsd/sensor.py
index 594003414d1..09f9b324bdd 100644
--- a/homeassistant/components/apcupsd/sensor.py
+++ b/homeassistant/components/apcupsd/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.entity import Entity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = [apcupsd.DOMAIN]
 
 SENSOR_PREFIX = 'UPS '
 SENSOR_TYPES = {
diff --git a/homeassistant/components/api/__init__.py b/homeassistant/components/api/__init__.py
index 61a5cd70c45..beba17ee2ea 100644
--- a/homeassistant/components/api/__init__.py
+++ b/homeassistant/components/api/__init__.py
@@ -33,7 +33,7 @@ ATTR_REQUIRES_API_PASSWORD = 'requires_api_password'
 ATTR_VERSION = 'version'
 
 DOMAIN = 'api'
-
+DEPENDENCIES = ['http']
 
 STREAM_PING_PAYLOAD = 'ping'
 STREAM_PING_INTERVAL = 50  # seconds
diff --git a/homeassistant/components/apns/notify.py b/homeassistant/components/apns/notify.py
index 8e4d7d1f8b1..d7f6559fe7e 100644
--- a/homeassistant/components/apns/notify.py
+++ b/homeassistant/components/apns/notify.py
@@ -13,7 +13,7 @@ from homeassistant.helpers.event import track_state_change
 from homeassistant.components.notify import (
     ATTR_DATA, ATTR_TARGET, DOMAIN, PLATFORM_SCHEMA, BaseNotificationService)
 
-
+REQUIREMENTS = ['apns2==0.3.0']
 
 APNS_DEVICES = 'apns.yaml'
 CONF_CERTFILE = 'cert_file'
diff --git a/homeassistant/components/apple_tv/__init__.py b/homeassistant/components/apple_tv/__init__.py
index 12b9203729c..b265dc533eb 100644
--- a/homeassistant/components/apple_tv/__init__.py
+++ b/homeassistant/components/apple_tv/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.helpers import discovery
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pyatv==0.3.12']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/apple_tv/media_player.py b/homeassistant/components/apple_tv/media_player.py
index b285ca86c61..e00ce6ed13b 100644
--- a/homeassistant/components/apple_tv/media_player.py
+++ b/homeassistant/components/apple_tv/media_player.py
@@ -14,7 +14,7 @@ import homeassistant.util.dt as dt_util
 
 from . import ATTR_ATV, ATTR_POWER, DATA_APPLE_TV, DATA_ENTITIES
 
-
+DEPENDENCIES = ['apple_tv']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/apple_tv/remote.py b/homeassistant/components/apple_tv/remote.py
index 439d7def371..25b500ac09d 100644
--- a/homeassistant/components/apple_tv/remote.py
+++ b/homeassistant/components/apple_tv/remote.py
@@ -4,7 +4,7 @@ from homeassistant.const import CONF_HOST, CONF_NAME
 
 from . import ATTR_ATV, ATTR_POWER, DATA_APPLE_TV
 
-
+DEPENDENCIES = ['apple_tv']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/aqualogic/__init__.py b/homeassistant/components/aqualogic/__init__.py
index 91f985c4a0e..a4f83b573f7 100644
--- a/homeassistant/components/aqualogic/__init__.py
+++ b/homeassistant/components/aqualogic/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.const import (CONF_HOST, CONF_PORT,
                                  EVENT_HOMEASSISTANT_STOP)
 from homeassistant.helpers import config_validation as cv
 
-
+REQUIREMENTS = ["aqualogic==1.0"]
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/aqualogic/sensor.py b/homeassistant/components/aqualogic/sensor.py
index 422db6bb02d..dc06a2127e9 100644
--- a/homeassistant/components/aqualogic/sensor.py
+++ b/homeassistant/components/aqualogic/sensor.py
@@ -14,7 +14,7 @@ from . import DOMAIN, UPDATE_TOPIC
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['aqualogic']
 
 TEMP_UNITS = [TEMP_CELSIUS, TEMP_FAHRENHEIT]
 PERCENT_UNITS = ['%', '%']
diff --git a/homeassistant/components/aqualogic/switch.py b/homeassistant/components/aqualogic/switch.py
index 1fffadab3b8..21e573f944b 100644
--- a/homeassistant/components/aqualogic/switch.py
+++ b/homeassistant/components/aqualogic/switch.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 
 from . import DOMAIN, UPDATE_TOPIC
 
-
+DEPENDENCIES = ['aqualogic']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/aquostv/media_player.py b/homeassistant/components/aquostv/media_player.py
index c90f798180e..0ffe48d21ec 100644
--- a/homeassistant/components/aquostv/media_player.py
+++ b/homeassistant/components/aquostv/media_player.py
@@ -15,7 +15,7 @@ from homeassistant.const import (
     CONF_USERNAME, STATE_OFF, STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['sharp_aquos_rc==0.3.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/arduino/__init__.py b/homeassistant/components/arduino/__init__.py
index dc59cb652e6..351122e74f0 100644
--- a/homeassistant/components/arduino/__init__.py
+++ b/homeassistant/components/arduino/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.const import (
 from homeassistant.const import CONF_PORT
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['PyMata==2.14']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/arduino/sensor.py b/homeassistant/components/arduino/sensor.py
index 9013edfa641..ff758ea5847 100644
--- a/homeassistant/components/arduino/sensor.py
+++ b/homeassistant/components/arduino/sensor.py
@@ -14,7 +14,7 @@ _LOGGER = logging.getLogger(__name__)
 CONF_PINS = 'pins'
 CONF_TYPE = 'analog'
 
-
+DEPENDENCIES = ['arduino']
 
 PIN_SCHEMA = vol.Schema({
     vol.Required(CONF_NAME): cv.string,
diff --git a/homeassistant/components/arduino/switch.py b/homeassistant/components/arduino/switch.py
index eae61f0ee91..947c5188766 100644
--- a/homeassistant/components/arduino/switch.py
+++ b/homeassistant/components/arduino/switch.py
@@ -8,7 +8,7 @@ from homeassistant.components.switch import (SwitchDevice, PLATFORM_SCHEMA)
 from homeassistant.const import CONF_NAME
 import homeassistant.helpers.config_validation as cv
 
-
+DEPENDENCIES = ['arduino']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/arlo/__init__.py b/homeassistant/components/arlo/__init__.py
index c370600e9ca..cbb720778e5 100644
--- a/homeassistant/components/arlo/__init__.py
+++ b/homeassistant/components/arlo/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
 from homeassistant.helpers.event import track_time_interval
 from homeassistant.helpers.dispatcher import dispatcher_send
 
-
+REQUIREMENTS = ['pyarlo==0.2.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/arlo/alarm_control_panel.py b/homeassistant/components/arlo/alarm_control_panel.py
index aeebd46a9f1..3557ed125c6 100644
--- a/homeassistant/components/arlo/alarm_control_panel.py
+++ b/homeassistant/components/arlo/alarm_control_panel.py
@@ -22,7 +22,7 @@ CONF_HOME_MODE_NAME = 'home_mode_name'
 CONF_AWAY_MODE_NAME = 'away_mode_name'
 CONF_NIGHT_MODE_NAME = 'night_mode_name'
 
-
+DEPENDENCIES = ['arlo']
 
 DISARMED = 'disarmed'
 
diff --git a/homeassistant/components/arlo/camera.py b/homeassistant/components/arlo/camera.py
index 918c2e0a71d..d4b00f00625 100644
--- a/homeassistant/components/arlo/camera.py
+++ b/homeassistant/components/arlo/camera.py
@@ -13,7 +13,7 @@ from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 from . import DATA_ARLO, DEFAULT_BRAND, SIGNAL_UPDATE_ARLO
 
-
+DEPENDENCIES = ['arlo', 'ffmpeg']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/arlo/sensor.py b/homeassistant/components/arlo/sensor.py
index 5b6f33eb89d..e08669eb80b 100644
--- a/homeassistant/components/arlo/sensor.py
+++ b/homeassistant/components/arlo/sensor.py
@@ -17,7 +17,7 @@ from . import ATTRIBUTION, DATA_ARLO, DEFAULT_BRAND, SIGNAL_UPDATE_ARLO
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['arlo']
 
 # sensor_type [ description, unit, icon ]
 SENSOR_TYPES = {
diff --git a/homeassistant/components/aruba/device_tracker.py b/homeassistant/components/aruba/device_tracker.py
index c4b03f4de8e..ed1fee25a6c 100644
--- a/homeassistant/components/aruba/device_tracker.py
+++ b/homeassistant/components/aruba/device_tracker.py
@@ -11,7 +11,7 @@ from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_USERNAME
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['pexpect==4.6.0']
 
 _DEVICES_REGEX = re.compile(
     r'(?P<name>([^\s]+)?)\s+' +
diff --git a/homeassistant/components/arwn/sensor.py b/homeassistant/components/arwn/sensor.py
index 602d106ff4d..aef43c4b401 100644
--- a/homeassistant/components/arwn/sensor.py
+++ b/homeassistant/components/arwn/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.util import slugify
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['mqtt']
 DOMAIN = 'arwn'
 
 DATA_ARWN = 'arwn'
diff --git a/homeassistant/components/asterisk_cdr/mailbox.py b/homeassistant/components/asterisk_cdr/mailbox.py
index d2a04c3d9a3..db5d4e8d6ee 100644
--- a/homeassistant/components/asterisk_cdr/mailbox.py
+++ b/homeassistant/components/asterisk_cdr/mailbox.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['asterisk_mbox']
 
 MAILBOX_NAME = 'asterisk_cdr'
 
diff --git a/homeassistant/components/asterisk_mbox/__init__.py b/homeassistant/components/asterisk_mbox/__init__.py
index 9d0f79ef278..d8d3b194cd7 100644
--- a/homeassistant/components/asterisk_mbox/__init__.py
+++ b/homeassistant/components/asterisk_mbox/__init__.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import (
     async_dispatcher_send, dispatcher_connect)
 
-
+REQUIREMENTS = ['asterisk_mbox==0.5.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/asterisk_mbox/mailbox.py b/homeassistant/components/asterisk_mbox/mailbox.py
index f5e82f55f89..a3e7c3f4d61 100644
--- a/homeassistant/components/asterisk_mbox/mailbox.py
+++ b/homeassistant/components/asterisk_mbox/mailbox.py
@@ -10,7 +10,7 @@ from . import DOMAIN as ASTERISK_DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['asterisk_mbox']
 
 SIGNAL_MESSAGE_REQUEST = 'asterisk_mbox.message_request'
 SIGNAL_MESSAGE_UPDATE = 'asterisk_mbox.message_updated'
diff --git a/homeassistant/components/asuswrt/__init__.py b/homeassistant/components/asuswrt/__init__.py
index a862383e945..9b004b5bc04 100644
--- a/homeassistant/components/asuswrt/__init__.py
+++ b/homeassistant/components/asuswrt/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
 
-
+REQUIREMENTS = ['aioasuswrt==1.1.21']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/asuswrt/device_tracker.py b/homeassistant/components/asuswrt/device_tracker.py
index 837c5a02b06..d115e640ffa 100644
--- a/homeassistant/components/asuswrt/device_tracker.py
+++ b/homeassistant/components/asuswrt/device_tracker.py
@@ -5,7 +5,7 @@ from homeassistant.components.device_tracker import DeviceScanner
 
 from . import DATA_ASUSWRT
 
-
+DEPENDENCIES = ['asuswrt']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/asuswrt/sensor.py b/homeassistant/components/asuswrt/sensor.py
index 650b1eb27ca..ac80a447e28 100644
--- a/homeassistant/components/asuswrt/sensor.py
+++ b/homeassistant/components/asuswrt/sensor.py
@@ -5,7 +5,7 @@ from homeassistant.helpers.entity import Entity
 
 from . import DATA_ASUSWRT
 
-
+DEPENDENCIES = ['asuswrt']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/august/__init__.py b/homeassistant/components/august/__init__.py
index cbdf6be583d..8e749dca46e 100644
--- a/homeassistant/components/august/__init__.py
+++ b/homeassistant/components/august/__init__.py
@@ -15,7 +15,7 @@ _LOGGER = logging.getLogger(__name__)
 
 _CONFIGURING = {}
 
-
+REQUIREMENTS = ['py-august==0.7.0']
 
 DEFAULT_TIMEOUT = 10
 ACTIVITY_FETCH_LIMIT = 10
diff --git a/homeassistant/components/august/binary_sensor.py b/homeassistant/components/august/binary_sensor.py
index c223d8ecaac..3a69d41177d 100644
--- a/homeassistant/components/august/binary_sensor.py
+++ b/homeassistant/components/august/binary_sensor.py
@@ -8,7 +8,7 @@ from . import DATA_AUGUST
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['august']
 
 SCAN_INTERVAL = timedelta(seconds=5)
 
diff --git a/homeassistant/components/august/camera.py b/homeassistant/components/august/camera.py
index 251dbc95604..53a9d78bc60 100644
--- a/homeassistant/components/august/camera.py
+++ b/homeassistant/components/august/camera.py
@@ -7,7 +7,7 @@ from homeassistant.components.camera import Camera
 
 from . import DATA_AUGUST, DEFAULT_TIMEOUT
 
-
+DEPENDENCIES = ['august']
 
 SCAN_INTERVAL = timedelta(seconds=5)
 
diff --git a/homeassistant/components/august/lock.py b/homeassistant/components/august/lock.py
index 243cb49706b..e112eaa2592 100644
--- a/homeassistant/components/august/lock.py
+++ b/homeassistant/components/august/lock.py
@@ -9,7 +9,7 @@ from . import DATA_AUGUST
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['august']
 
 SCAN_INTERVAL = timedelta(seconds=5)
 
diff --git a/homeassistant/components/auth/__init__.py b/homeassistant/components/auth/__init__.py
index 3d5a9b92564..d0157158aca 100644
--- a/homeassistant/components/auth/__init__.py
+++ b/homeassistant/components/auth/__init__.py
@@ -138,7 +138,7 @@ from . import login_flow
 from . import mfa_setup_flow
 
 DOMAIN = 'auth'
-
+DEPENDENCIES = ['http']
 
 WS_TYPE_CURRENT_USER = 'auth/current_user'
 SCHEMA_WS_CURRENT_USER = websocket_api.BASE_COMMAND_MESSAGE_SCHEMA.extend({
diff --git a/homeassistant/components/automatic/device_tracker.py b/homeassistant/components/automatic/device_tracker.py
index afb4a5e74fc..8abd81e63be 100644
--- a/homeassistant/components/automatic/device_tracker.py
+++ b/homeassistant/components/automatic/device_tracker.py
@@ -18,7 +18,7 @@ from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.event import async_track_time_interval
 
-
+REQUIREMENTS = ['aioautomatic==0.6.5']
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -34,7 +34,7 @@ DATA_CONFIGURING = 'automatic_configurator_clients'
 DATA_REFRESH_TOKEN = 'refresh_token'
 DEFAULT_SCOPE = ['location', 'trip', 'vehicle:events', 'vehicle:profile']
 DEFAULT_TIMEOUT = 5
-
+DEPENDENCIES = ['http']
 
 EVENT_AUTOMATIC_UPDATE = 'automatic_update'
 
diff --git a/homeassistant/components/automation/__init__.py b/homeassistant/components/automation/__init__.py
index 26aa65f2128..b1470582d59 100644
--- a/homeassistant/components/automation/__init__.py
+++ b/homeassistant/components/automation/__init__.py
@@ -21,7 +21,7 @@ from homeassistant.loader import bind_hass
 from homeassistant.util.dt import utcnow
 
 DOMAIN = 'automation'
-
+DEPENDENCIES = ['group']
 ENTITY_ID_FORMAT = DOMAIN + '.{}'
 
 GROUP_NAME_ALL_AUTOMATIONS = 'all automations'
diff --git a/homeassistant/components/automation/litejet.py b/homeassistant/components/automation/litejet.py
index d5788db2d1a..20c689d74cf 100644
--- a/homeassistant/components/automation/litejet.py
+++ b/homeassistant/components/automation/litejet.py
@@ -9,7 +9,7 @@ import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 from homeassistant.helpers.event import track_point_in_utc_time
 
-
+DEPENDENCIES = ['litejet']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/automation/mqtt.py b/homeassistant/components/automation/mqtt.py
index c5e8ce33e3c..ff89cd47024 100644
--- a/homeassistant/components/automation/mqtt.py
+++ b/homeassistant/components/automation/mqtt.py
@@ -8,7 +8,7 @@ from homeassistant.components import mqtt
 from homeassistant.const import (CONF_PLATFORM, CONF_PAYLOAD)
 import homeassistant.helpers.config_validation as cv
 
-
+DEPENDENCIES = ['mqtt']
 
 CONF_ENCODING = 'encoding'
 CONF_TOPIC = 'topic'
diff --git a/homeassistant/components/avion/light.py b/homeassistant/components/avion/light.py
index 09532587443..65172025b56 100644
--- a/homeassistant/components/avion/light.py
+++ b/homeassistant/components/avion/light.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
     CONF_USERNAME)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['avion==0.10']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/awair/sensor.py b/homeassistant/components/awair/sensor.py
index 627e65006af..7fdcc673549 100644
--- a/homeassistant/components/awair/sensor.py
+++ b/homeassistant/components/awair/sensor.py
@@ -15,7 +15,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle, dt
 
-
+REQUIREMENTS = ['python_awair==0.0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/aws/__init__.py b/homeassistant/components/aws/__init__.py
index 0f8f82f3d27..a15e56e9de8 100644
--- a/homeassistant/components/aws/__init__.py
+++ b/homeassistant/components/aws/__init__.py
@@ -26,7 +26,7 @@ from .const import (
     DOMAIN,
 )
 
-
+REQUIREMENTS = ["aiobotocore==0.10.2"]
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/aws/notify.py b/homeassistant/components/aws/notify.py
index 8a02cd2375a..48b80b64ce2 100644
--- a/homeassistant/components/aws/notify.py
+++ b/homeassistant/components/aws/notify.py
@@ -21,7 +21,7 @@ from .const import (
     DATA_SESSIONS,
 )
 
-
+DEPENDENCIES = ["aws"]
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/axis/__init__.py b/homeassistant/components/axis/__init__.py
index c65a2b66fce..e9ed37477a5 100644
--- a/homeassistant/components/axis/__init__.py
+++ b/homeassistant/components/axis/__init__.py
@@ -11,7 +11,7 @@ from .config_flow import DEVICE_SCHEMA
 from .const import CONF_CAMERA, CONF_EVENTS, DEFAULT_TRIGGER_TIME, DOMAIN
 from .device import AxisNetworkDevice, get_device
 
-
+REQUIREMENTS = ['axis==19']
 
 CONFIG_SCHEMA = vol.Schema({
     DOMAIN: cv.schema_with_slug_keys(DEVICE_SCHEMA),
diff --git a/homeassistant/components/axis/binary_sensor.py b/homeassistant/components/axis/binary_sensor.py
index e734abbf5be..30e0e759a2c 100644
--- a/homeassistant/components/axis/binary_sensor.py
+++ b/homeassistant/components/axis/binary_sensor.py
@@ -11,7 +11,7 @@ from homeassistant.util.dt import utcnow
 
 from .const import DOMAIN as AXIS_DOMAIN, LOGGER
 
-
+DEPENDENCIES = [AXIS_DOMAIN]
 
 
 async def async_setup_entry(hass, config_entry, async_add_entities):
diff --git a/homeassistant/components/axis/camera.py b/homeassistant/components/axis/camera.py
index 7873cff301a..62b694a99bb 100644
--- a/homeassistant/components/axis/camera.py
+++ b/homeassistant/components/axis/camera.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 from .const import DOMAIN as AXIS_DOMAIN
 
-
+DEPENDENCIES = [AXIS_DOMAIN]
 
 AXIS_IMAGE = 'http://{}:{}/axis-cgi/jpg/image.cgi'
 AXIS_VIDEO = 'http://{}:{}/axis-cgi/mjpg/video.cgi'
diff --git a/homeassistant/components/baidu/tts.py b/homeassistant/components/baidu/tts.py
index 7cc3080fac0..fbe27591ef5 100644
--- a/homeassistant/components/baidu/tts.py
+++ b/homeassistant/components/baidu/tts.py
@@ -7,7 +7,7 @@ from homeassistant.components.tts import CONF_LANG, PLATFORM_SCHEMA, Provider
 from homeassistant.const import CONF_API_KEY
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ["baidu-aip==1.6.6"]
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/bbb_gpio/__init__.py b/homeassistant/components/bbb_gpio/__init__.py
index ed6cbba54f1..7749af8f335 100644
--- a/homeassistant/components/bbb_gpio/__init__.py
+++ b/homeassistant/components/bbb_gpio/__init__.py
@@ -4,7 +4,7 @@ import logging
 from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 
-
+REQUIREMENTS = ['Adafruit_BBIO==1.0.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/bbb_gpio/binary_sensor.py b/homeassistant/components/bbb_gpio/binary_sensor.py
index af131306c40..1ee371dcc2a 100644
--- a/homeassistant/components/bbb_gpio/binary_sensor.py
+++ b/homeassistant/components/bbb_gpio/binary_sensor.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['bbb_gpio']
 
 CONF_PINS = 'pins'
 CONF_BOUNCETIME = 'bouncetime'
diff --git a/homeassistant/components/bbb_gpio/switch.py b/homeassistant/components/bbb_gpio/switch.py
index 3bd6908b556..3ad46fd61ae 100644
--- a/homeassistant/components/bbb_gpio/switch.py
+++ b/homeassistant/components/bbb_gpio/switch.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['bbb_gpio']
 
 CONF_PINS = 'pins'
 CONF_INITIAL = 'initial'
diff --git a/homeassistant/components/bbox/device_tracker.py b/homeassistant/components/bbox/device_tracker.py
index d10e113a402..badbcdc8a0b 100644
--- a/homeassistant/components/bbox/device_tracker.py
+++ b/homeassistant/components/bbox/device_tracker.py
@@ -12,7 +12,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['pybbox==0.0.5-alpha']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/bbox/sensor.py b/homeassistant/components/bbox/sensor.py
index b1880ac3a94..5b3c31d1ddf 100644
--- a/homeassistant/components/bbox/sensor.py
+++ b/homeassistant/components/bbox/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['pybbox==0.0.5-alpha']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/bitcoin/sensor.py b/homeassistant/components/bitcoin/sensor.py
index d8e95582325..3bc14637a87 100644
--- a/homeassistant/components/bitcoin/sensor.py
+++ b/homeassistant/components/bitcoin/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['blockchain==1.4.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/blackbird/media_player.py b/homeassistant/components/blackbird/media_player.py
index c1f2d2660ed..c66bc412160 100644
--- a/homeassistant/components/blackbird/media_player.py
+++ b/homeassistant/components/blackbird/media_player.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
     STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pyblackbird==0.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/blink/__init__.py b/homeassistant/components/blink/__init__.py
index 9d779883fb0..488209e3689 100644
--- a/homeassistant/components/blink/__init__.py
+++ b/homeassistant/components/blink/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
     CONF_BINARY_SENSORS, CONF_SENSORS, CONF_FILENAME,
     CONF_MONITORED_CONDITIONS, TEMP_FAHRENHEIT)
 
-
+REQUIREMENTS = ['blinkpy==0.13.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/blink/alarm_control_panel.py b/homeassistant/components/blink/alarm_control_panel.py
index e5b49772dd5..75e645dff5f 100644
--- a/homeassistant/components/blink/alarm_control_panel.py
+++ b/homeassistant/components/blink/alarm_control_panel.py
@@ -9,7 +9,7 @@ from . import BLINK_DATA, DEFAULT_ATTRIBUTION
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['blink']
 
 ICON = 'mdi:security'
 
diff --git a/homeassistant/components/blink/binary_sensor.py b/homeassistant/components/blink/binary_sensor.py
index c058bb40ed3..466b73caf5f 100644
--- a/homeassistant/components/blink/binary_sensor.py
+++ b/homeassistant/components/blink/binary_sensor.py
@@ -4,7 +4,7 @@ from homeassistant.const import CONF_MONITORED_CONDITIONS
 
 from . import BINARY_SENSORS, BLINK_DATA
 
-
+DEPENDENCIES = ['blink']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/blink/camera.py b/homeassistant/components/blink/camera.py
index 6fe3e81a319..1da3080e3ff 100644
--- a/homeassistant/components/blink/camera.py
+++ b/homeassistant/components/blink/camera.py
@@ -7,7 +7,7 @@ from . import BLINK_DATA, DEFAULT_BRAND
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['blink']
 
 ATTR_VIDEO_CLIP = 'video'
 ATTR_IMAGE = 'image'
diff --git a/homeassistant/components/blink/sensor.py b/homeassistant/components/blink/sensor.py
index bd954111237..0e97db9d7d4 100644
--- a/homeassistant/components/blink/sensor.py
+++ b/homeassistant/components/blink/sensor.py
@@ -8,7 +8,7 @@ from . import BLINK_DATA, SENSORS
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['blink']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/blinksticklight/light.py b/homeassistant/components/blinksticklight/light.py
index 067ef122419..0d4c7b736f3 100644
--- a/homeassistant/components/blinksticklight/light.py
+++ b/homeassistant/components/blinksticklight/light.py
@@ -10,7 +10,7 @@ from homeassistant.const import CONF_NAME
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 
-
+REQUIREMENTS = ['blinkstick==1.1.8']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/blinkt/light.py b/homeassistant/components/blinkt/light.py
index 86b59971419..57d19172614 100644
--- a/homeassistant/components/blinkt/light.py
+++ b/homeassistant/components/blinkt/light.py
@@ -11,7 +11,7 @@ from homeassistant.components.light import (
 from homeassistant.const import CONF_NAME
 import homeassistant.util.color as color_util
 
-
+REQUIREMENTS = ['blinkt==0.1.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/blockchain/sensor.py b/homeassistant/components/blockchain/sensor.py
index 3069265060a..def1dc3309f 100644
--- a/homeassistant/components/blockchain/sensor.py
+++ b/homeassistant/components/blockchain/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (CONF_NAME, ATTR_ATTRIBUTION)
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['python-blockchain-api==0.0.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/bloomsky/binary_sensor.py b/homeassistant/components/bloomsky/binary_sensor.py
index aa64179c6da..c8763524de7 100644
--- a/homeassistant/components/bloomsky/binary_sensor.py
+++ b/homeassistant/components/bloomsky/binary_sensor.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['bloomsky']
 
 SENSOR_TYPES = {
     'Rain': 'moisture',
diff --git a/homeassistant/components/bloomsky/camera.py b/homeassistant/components/bloomsky/camera.py
index 350d9ed91f9..5cb2e1adfe1 100644
--- a/homeassistant/components/bloomsky/camera.py
+++ b/homeassistant/components/bloomsky/camera.py
@@ -5,7 +5,7 @@ import requests
 
 from homeassistant.components.camera import Camera
 
-
+DEPENDENCIES = ['bloomsky']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/bloomsky/sensor.py b/homeassistant/components/bloomsky/sensor.py
index 51645bb82ef..7e6847f0e7e 100644
--- a/homeassistant/components/bloomsky/sensor.py
+++ b/homeassistant/components/bloomsky/sensor.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['bloomsky']
 
 # These are the available sensors
 SENSOR_TYPES = ['Temperature',
diff --git a/homeassistant/components/bluesound/media_player.py b/homeassistant/components/bluesound/media_player.py
index 16e4ea5775d..c4cd3572e75 100644
--- a/homeassistant/components/bluesound/media_player.py
+++ b/homeassistant/components/bluesound/media_player.py
@@ -29,7 +29,7 @@ from homeassistant.helpers.event import async_track_time_interval
 from homeassistant.util import Throttle
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['xmltodict==0.11.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/bluetooth_le_tracker/device_tracker.py b/homeassistant/components/bluetooth_le_tracker/device_tracker.py
index c8627ed91f3..dfb5fa073b9 100644
--- a/homeassistant/components/bluetooth_le_tracker/device_tracker.py
+++ b/homeassistant/components/bluetooth_le_tracker/device_tracker.py
@@ -10,7 +10,7 @@ import homeassistant.util.dt as dt_util
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['pygatt[GATTTOOL]==3.2.0']
 
 BLE_PREFIX = 'BLE_'
 MIN_SEEN_NEW = 5
diff --git a/homeassistant/components/bluetooth_tracker/device_tracker.py b/homeassistant/components/bluetooth_tracker/device_tracker.py
index 5a92434b45a..3a4aa888001 100644
--- a/homeassistant/components/bluetooth_tracker/device_tracker.py
+++ b/homeassistant/components/bluetooth_tracker/device_tracker.py
@@ -13,7 +13,7 @@ import homeassistant.util.dt as dt_util
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['pybluez==0.22', 'bt_proximity==0.1.2']
 
 BT_PREFIX = 'BT_'
 
diff --git a/homeassistant/components/bmw_connected_drive/__init__.py b/homeassistant/components/bmw_connected_drive/__init__.py
index f5c771b1e25..e1ac30120d2 100644
--- a/homeassistant/components/bmw_connected_drive/__init__.py
+++ b/homeassistant/components/bmw_connected_drive/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.helpers import discovery
 from homeassistant.helpers.event import track_utc_time_change
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['bimmer_connected==0.5.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/bmw_connected_drive/binary_sensor.py b/homeassistant/components/bmw_connected_drive/binary_sensor.py
index 4c65ef9ac89..deab157292d 100644
--- a/homeassistant/components/bmw_connected_drive/binary_sensor.py
+++ b/homeassistant/components/bmw_connected_drive/binary_sensor.py
@@ -6,7 +6,7 @@ from homeassistant.const import LENGTH_KILOMETERS
 
 from . import DOMAIN as BMW_DOMAIN
 
-
+DEPENDENCIES = ['bmw_connected_drive']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/bmw_connected_drive/device_tracker.py b/homeassistant/components/bmw_connected_drive/device_tracker.py
index 7362daf090d..20e84e33e29 100644
--- a/homeassistant/components/bmw_connected_drive/device_tracker.py
+++ b/homeassistant/components/bmw_connected_drive/device_tracker.py
@@ -5,7 +5,7 @@ from homeassistant.util import slugify
 
 from . import DOMAIN as BMW_DOMAIN
 
-
+DEPENDENCIES = ['bmw_connected_drive']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/bmw_connected_drive/lock.py b/homeassistant/components/bmw_connected_drive/lock.py
index 9b30eb0a888..fe646dcd1c9 100644
--- a/homeassistant/components/bmw_connected_drive/lock.py
+++ b/homeassistant/components/bmw_connected_drive/lock.py
@@ -6,7 +6,7 @@ from homeassistant.const import STATE_LOCKED, STATE_UNLOCKED
 
 from . import DOMAIN as BMW_DOMAIN
 
-
+DEPENDENCIES = ['bmw_connected_drive']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/bmw_connected_drive/sensor.py b/homeassistant/components/bmw_connected_drive/sensor.py
index 20e24c623e4..03c03f01b4a 100644
--- a/homeassistant/components/bmw_connected_drive/sensor.py
+++ b/homeassistant/components/bmw_connected_drive/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.helpers.icon import icon_for_battery_level
 
 from . import DOMAIN as BMW_DOMAIN
 
-
+DEPENDENCIES = ['bmw_connected_drive']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/bom/camera.py b/homeassistant/components/bom/camera.py
index c6751330e41..d3e78034015 100644
--- a/homeassistant/components/bom/camera.py
+++ b/homeassistant/components/bom/camera.py
@@ -5,7 +5,7 @@ from homeassistant.components.camera import PLATFORM_SCHEMA, Camera
 from homeassistant.const import CONF_ID, CONF_NAME
 from homeassistant.helpers import config_validation as cv
 
-
+REQUIREMENTS = ['bomradarloop==0.1.2']
 
 CONF_DELTA = 'delta'
 CONF_FRAMES = 'frames'
diff --git a/homeassistant/components/braviatv/media_player.py b/homeassistant/components/braviatv/media_player.py
index 4b2bbe22c42..45fdb63a4a9 100644
--- a/homeassistant/components/braviatv/media_player.py
+++ b/homeassistant/components/braviatv/media_player.py
@@ -15,7 +15,7 @@ from homeassistant.const import CONF_HOST, CONF_NAME, STATE_OFF, STATE_ON
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util.json import load_json, save_json
 
-
+REQUIREMENTS = ['braviarc-homeassistant==0.3.7.dev0']
 
 BRAVIA_CONFIG_FILE = 'bravia.conf'
 
diff --git a/homeassistant/components/broadlink/sensor.py b/homeassistant/components/broadlink/sensor.py
index a4f0d5d1c53..b3ce245a979 100644
--- a/homeassistant/components/broadlink/sensor.py
+++ b/homeassistant/components/broadlink/sensor.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['broadlink==0.9.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/broadlink/switch.py b/homeassistant/components/broadlink/switch.py
index 95eeccbf101..8695f70786c 100644
--- a/homeassistant/components/broadlink/switch.py
+++ b/homeassistant/components/broadlink/switch.py
@@ -17,7 +17,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle, slugify
 from homeassistant.util.dt import utcnow
 
-
+REQUIREMENTS = ['broadlink==0.9.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/brottsplatskartan/sensor.py b/homeassistant/components/brottsplatskartan/sensor.py
index d895b48da29..f990dd1aba1 100644
--- a/homeassistant/components/brottsplatskartan/sensor.py
+++ b/homeassistant/components/brottsplatskartan/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['brottsplatskartan==0.0.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/brunt/cover.py b/homeassistant/components/brunt/cover.py
index 73c30e344b8..dc17cebcec2 100644
--- a/homeassistant/components/brunt/cover.py
+++ b/homeassistant/components/brunt/cover.py
@@ -13,7 +13,7 @@ from homeassistant.components.cover import (
 )
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['brunt==0.1.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/bt_home_hub_5/device_tracker.py b/homeassistant/components/bt_home_hub_5/device_tracker.py
index 5e1ae73f4bb..61853c0af89 100644
--- a/homeassistant/components/bt_home_hub_5/device_tracker.py
+++ b/homeassistant/components/bt_home_hub_5/device_tracker.py
@@ -8,7 +8,7 @@ from homeassistant.components.device_tracker import (DOMAIN, PLATFORM_SCHEMA,
                                                      DeviceScanner)
 from homeassistant.const import CONF_HOST
 
-
+REQUIREMENTS = ['bthomehub5-devicelist==0.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/bt_smarthub/device_tracker.py b/homeassistant/components/bt_smarthub/device_tracker.py
index ce253e054f2..5820feda567 100644
--- a/homeassistant/components/bt_smarthub/device_tracker.py
+++ b/homeassistant/components/bt_smarthub/device_tracker.py
@@ -8,7 +8,7 @@ from homeassistant.components.device_tracker import (
     DOMAIN, PLATFORM_SCHEMA, DeviceScanner)
 from homeassistant.const import CONF_HOST
 
-
+REQUIREMENTS = ['btsmarthub_devicelist==0.1.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/buienradar/sensor.py b/homeassistant/components/buienradar/sensor.py
index 0d14c000730..754873fa2c9 100644
--- a/homeassistant/components/buienradar/sensor.py
+++ b/homeassistant/components/buienradar/sensor.py
@@ -17,7 +17,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import async_track_point_in_utc_time
 from homeassistant.util import dt as dt_util
 
-
+REQUIREMENTS = ['buienradar==0.91']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/buienradar/weather.py b/homeassistant/components/buienradar/weather.py
index af586b33f9b..86dcb229a78 100644
--- a/homeassistant/components/buienradar/weather.py
+++ b/homeassistant/components/buienradar/weather.py
@@ -13,7 +13,7 @@ from homeassistant.helpers import config_validation as cv
 # Reuse data and API logic from the sensor implementation
 from .sensor import BrData
 
-
+REQUIREMENTS = ['buienradar==0.91']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/caldav/calendar.py b/homeassistant/components/caldav/calendar.py
index 1c420fef3e1..65cb20811b8 100644
--- a/homeassistant/components/caldav/calendar.py
+++ b/homeassistant/components/caldav/calendar.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle, dt
 
-
+REQUIREMENTS = ['caldav==0.5.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/calendar/__init__.py b/homeassistant/components/calendar/__init__.py
index cbe7740420b..aa9e3153fe5 100644
--- a/homeassistant/components/calendar/__init__.py
+++ b/homeassistant/components/calendar/__init__.py
@@ -22,7 +22,7 @@ _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'calendar'
 
-
+DEPENDENCIES = ['http']
 
 ENTITY_ID_FORMAT = DOMAIN + '.{}'
 
diff --git a/homeassistant/components/camera/__init__.py b/homeassistant/components/camera/__init__.py
index 25b4e5cd709..2ddab537acc 100644
--- a/homeassistant/components/camera/__init__.py
+++ b/homeassistant/components/camera/__init__.py
@@ -36,7 +36,7 @@ import homeassistant.helpers.config_validation as cv
 from .const import DOMAIN, DATA_CAMERA_PREFS
 from .prefs import CameraPreferences
 
-
+DEPENDENCIES = ['http']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/canary/__init__.py b/homeassistant/components/canary/__init__.py
index 7ff09863bda..e53c7e22d2d 100644
--- a/homeassistant/components/canary/__init__.py
+++ b/homeassistant/components/canary/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.const import CONF_USERNAME, CONF_PASSWORD, CONF_TIMEOUT
 from homeassistant.helpers import discovery
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['py-canary==0.5.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/canary/alarm_control_panel.py b/homeassistant/components/canary/alarm_control_panel.py
index 511ee54f50d..faa7d819a2e 100644
--- a/homeassistant/components/canary/alarm_control_panel.py
+++ b/homeassistant/components/canary/alarm_control_panel.py
@@ -8,7 +8,7 @@ from homeassistant.const import (
 
 from . import DATA_CANARY
 
-
+DEPENDENCIES = ['canary']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/canary/camera.py b/homeassistant/components/canary/camera.py
index cf5edb0f3f1..fc740a46f62 100644
--- a/homeassistant/components/canary/camera.py
+++ b/homeassistant/components/canary/camera.py
@@ -13,7 +13,7 @@ from homeassistant.util import Throttle
 
 from . import DATA_CANARY, DEFAULT_TIMEOUT
 
-
+DEPENDENCIES = ['canary', 'ffmpeg']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/canary/sensor.py b/homeassistant/components/canary/sensor.py
index 73054e610b6..fb3aaf78b0a 100644
--- a/homeassistant/components/canary/sensor.py
+++ b/homeassistant/components/canary/sensor.py
@@ -6,7 +6,7 @@ from homeassistant.helpers.icon import icon_for_battery_level
 
 from . import DATA_CANARY
 
-
+DEPENDENCIES = ['canary']
 
 SENSOR_VALUE_PRECISION = 2
 ATTR_AIR_QUALITY = "air_quality"
diff --git a/homeassistant/components/cast/__init__.py b/homeassistant/components/cast/__init__.py
index 140563a4337..0ec3ac150d7 100644
--- a/homeassistant/components/cast/__init__.py
+++ b/homeassistant/components/cast/__init__.py
@@ -2,7 +2,7 @@
 from homeassistant import config_entries
 from homeassistant.helpers import config_entry_flow
 
-
+REQUIREMENTS = ['pychromecast==3.2.0']
 
 DOMAIN = 'cast'
 
diff --git a/homeassistant/components/channels/media_player.py b/homeassistant/components/channels/media_player.py
index 12959fe6729..afe29ae079f 100644
--- a/homeassistant/components/channels/media_player.py
+++ b/homeassistant/components/channels/media_player.py
@@ -15,7 +15,7 @@ from homeassistant.const import (
     STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pychannels==1.0.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/cisco_ios/device_tracker.py b/homeassistant/components/cisco_ios/device_tracker.py
index 1941e3cd9b4..d5a64626e89 100644
--- a/homeassistant/components/cisco_ios/device_tracker.py
+++ b/homeassistant/components/cisco_ios/device_tracker.py
@@ -11,7 +11,7 @@ from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_USERNAME, \
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['pexpect==4.6.0']
 
 PLATFORM_SCHEMA = vol.All(
     PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/cisco_mobility_express/device_tracker.py b/homeassistant/components/cisco_mobility_express/device_tracker.py
index e4d6a741f51..a722a994350 100644
--- a/homeassistant/components/cisco_mobility_express/device_tracker.py
+++ b/homeassistant/components/cisco_mobility_express/device_tracker.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_USERNAME, CONF_PASSWORD, CONF_SSL, CONF_VERIFY_SSL)
 
 
-
+REQUIREMENTS = ['ciscomobilityexpress==0.1.5']
 
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/cisco_webex_teams/notify.py b/homeassistant/components/cisco_webex_teams/notify.py
index f0e290ca729..f893d4071b0 100644
--- a/homeassistant/components/cisco_webex_teams/notify.py
+++ b/homeassistant/components/cisco_webex_teams/notify.py
@@ -8,7 +8,7 @@ from homeassistant.components.notify import (
 from homeassistant.const import (CONF_TOKEN)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['webexteamssdk==1.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ciscospark/notify.py b/homeassistant/components/ciscospark/notify.py
index 58fb4c75013..2eccb233a3c 100644
--- a/homeassistant/components/ciscospark/notify.py
+++ b/homeassistant/components/ciscospark/notify.py
@@ -9,7 +9,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.components.notify import (ATTR_TITLE, PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-
+REQUIREMENTS = ['ciscosparkapi==0.4.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/clementine/media_player.py b/homeassistant/components/clementine/media_player.py
index faffb51c81a..65c6be19845 100644
--- a/homeassistant/components/clementine/media_player.py
+++ b/homeassistant/components/clementine/media_player.py
@@ -16,7 +16,7 @@ from homeassistant.const import (
     STATE_PAUSED, STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['python-clementine-remote==1.0.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/cloud/__init__.py b/homeassistant/components/cloud/__init__.py
index f4efea2df7f..41045ba1f91 100644
--- a/homeassistant/components/cloud/__init__.py
+++ b/homeassistant/components/cloud/__init__.py
@@ -24,8 +24,8 @@ from .const import (
     CONF_USER_POOL_ID, DOMAIN, MODE_DEV, MODE_PROD)
 from .prefs import CloudPreferences
 
-
-
+REQUIREMENTS = ['hass-nabucasa==0.11']
+DEPENDENCIES = ['http']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/cloud/binary_sensor.py b/homeassistant/components/cloud/binary_sensor.py
index b24a057860a..19a6528e321 100644
--- a/homeassistant/components/cloud/binary_sensor.py
+++ b/homeassistant/components/cloud/binary_sensor.py
@@ -6,7 +6,7 @@ from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 from .const import DISPATCHER_REMOTE_UPDATE, DOMAIN
 
-
+DEPENDENCIES = ['cloud']
 
 
 WAIT_UNTIL_CHANGE = 3
diff --git a/homeassistant/components/cloudflare/__init__.py b/homeassistant/components/cloudflare/__init__.py
index 87fec8e9ff0..363e7c5eeb1 100644
--- a/homeassistant/components/cloudflare/__init__.py
+++ b/homeassistant/components/cloudflare/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.const import CONF_API_KEY, CONF_EMAIL, CONF_ZONE
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.event import track_time_interval
 
-
+REQUIREMENTS = ['pycfdns==0.0.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/cmus/media_player.py b/homeassistant/components/cmus/media_player.py
index b5d25d234e3..e5134508fea 100644
--- a/homeassistant/components/cmus/media_player.py
+++ b/homeassistant/components/cmus/media_player.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
     STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pycmus==0.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/co2signal/sensor.py b/homeassistant/components/co2signal/sensor.py
index 0b816356ba2..b9ae5e26ebe 100644
--- a/homeassistant/components/co2signal/sensor.py
+++ b/homeassistant/components/co2signal/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.entity import Entity
 
 CONF_COUNTRY_CODE = "country_code"
 
-
+REQUIREMENTS = ['co2signal==0.4.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/coinbase/__init__.py b/homeassistant/components/coinbase/__init__.py
index 75dd7a4ef72..40d04eadb3a 100644
--- a/homeassistant/components/coinbase/__init__.py
+++ b/homeassistant/components/coinbase/__init__.py
@@ -9,7 +9,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import load_platform
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['coinbase==2.1.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/coinbase/sensor.py b/homeassistant/components/coinbase/sensor.py
index 88f6620b2f8..2483d46b38a 100644
--- a/homeassistant/components/coinbase/sensor.py
+++ b/homeassistant/components/coinbase/sensor.py
@@ -17,7 +17,7 @@ DEFAULT_COIN_ICON = 'mdi:coin'
 ATTRIBUTION = "Data provided by coinbase.com"
 
 DATA_COINBASE = 'coinbase_cache'
-
+DEPENDENCIES = ['coinbase']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/coinmarketcap/sensor.py b/homeassistant/components/coinmarketcap/sensor.py
index c6102833af5..a39f11b5352 100644
--- a/homeassistant/components/coinmarketcap/sensor.py
+++ b/homeassistant/components/coinmarketcap/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
     ATTR_ATTRIBUTION, CONF_DISPLAY_CURRENCY)
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['coinmarketcap==5.0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/comfoconnect/__init__.py b/homeassistant/components/comfoconnect/__init__.py
index c159b28200d..64ebec18545 100644
--- a/homeassistant/components/comfoconnect/__init__.py
+++ b/homeassistant/components/comfoconnect/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import dispatcher_send
 
-
+REQUIREMENTS = ['pycomfoconnect==0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/comfoconnect/fan.py b/homeassistant/components/comfoconnect/fan.py
index 2187afb49df..88dcffcfd21 100644
--- a/homeassistant/components/comfoconnect/fan.py
+++ b/homeassistant/components/comfoconnect/fan.py
@@ -10,7 +10,7 @@ from . import DOMAIN, SIGNAL_COMFOCONNECT_UPDATE_RECEIVED, ComfoConnectBridge
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['comfoconnect']
 
 SPEED_MAPPING = {
     0: SPEED_OFF,
diff --git a/homeassistant/components/comfoconnect/sensor.py b/homeassistant/components/comfoconnect/sensor.py
index 65f7c2025e2..edb96b8d279 100644
--- a/homeassistant/components/comfoconnect/sensor.py
+++ b/homeassistant/components/comfoconnect/sensor.py
@@ -12,7 +12,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['comfoconnect']
 
 SENSOR_TYPES = {}
 
diff --git a/homeassistant/components/concord232/alarm_control_panel.py b/homeassistant/components/concord232/alarm_control_panel.py
index 99e3fbdfd0b..a209fba93ed 100644
--- a/homeassistant/components/concord232/alarm_control_panel.py
+++ b/homeassistant/components/concord232/alarm_control_panel.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_NAME, CONF_PORT, CONF_CODE, CONF_MODE,
     STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME, STATE_ALARM_DISARMED)
 
-
+REQUIREMENTS = ['concord232==0.15']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/concord232/binary_sensor.py b/homeassistant/components/concord232/binary_sensor.py
index a3d96c2e7bf..c1a31eb9ead 100644
--- a/homeassistant/components/concord232/binary_sensor.py
+++ b/homeassistant/components/concord232/binary_sensor.py
@@ -10,7 +10,7 @@ from homeassistant.components.binary_sensor import (
 from homeassistant.const import (CONF_HOST, CONF_PORT)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['concord232==0.15']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/config/__init__.py b/homeassistant/components/config/__init__.py
index 6373226399c..7807c527370 100644
--- a/homeassistant/components/config/__init__.py
+++ b/homeassistant/components/config/__init__.py
@@ -12,7 +12,7 @@ from homeassistant.components.http import HomeAssistantView
 from homeassistant.util.yaml import load_yaml, dump
 
 DOMAIN = 'config'
-
+DEPENDENCIES = ['http']
 SECTIONS = (
     'area_registry',
     'auth',
diff --git a/homeassistant/components/conversation/__init__.py b/homeassistant/components/conversation/__init__.py
index f16ff2f291d..bb2d692f249 100644
--- a/homeassistant/components/conversation/__init__.py
+++ b/homeassistant/components/conversation/__init__.py
@@ -21,7 +21,7 @@ _LOGGER = logging.getLogger(__name__)
 
 ATTR_TEXT = 'text'
 
-
+DEPENDENCIES = ['http']
 DOMAIN = 'conversation'
 
 REGEX_TURN_COMMAND = re.compile(r'turn (?P<name>(?: |\w)+) (?P<command>\w+)')
diff --git a/homeassistant/components/coolmaster/climate.py b/homeassistant/components/coolmaster/climate.py
index 9fb197152ae..77bb9a6b213 100644
--- a/homeassistant/components/coolmaster/climate.py
+++ b/homeassistant/components/coolmaster/climate.py
@@ -13,7 +13,7 @@ from homeassistant.const import (
     ATTR_TEMPERATURE, CONF_HOST, CONF_PORT, TEMP_CELSIUS, TEMP_FAHRENHEIT)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pycoolmasternet==0.0.4']
 
 SUPPORT_FLAGS = (SUPPORT_TARGET_TEMPERATURE | SUPPORT_FAN_MODE |
                  SUPPORT_OPERATION_MODE | SUPPORT_ON_OFF)
diff --git a/homeassistant/components/cover/__init__.py b/homeassistant/components/cover/__init__.py
index 7fcd47381b8..9bb1aacfaf1 100644
--- a/homeassistant/components/cover/__init__.py
+++ b/homeassistant/components/cover/__init__.py
@@ -22,7 +22,7 @@ from homeassistant.const import (
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'cover'
-
+DEPENDENCIES = ['group']
 SCAN_INTERVAL = timedelta(seconds=15)
 
 GROUP_NAME_ALL_COVERS = 'all covers'
diff --git a/homeassistant/components/cppm_tracker/device_tracker.py b/homeassistant/components/cppm_tracker/device_tracker.py
index 167ea76574a..31d8122692a 100755
--- a/homeassistant/components/cppm_tracker/device_tracker.py
+++ b/homeassistant/components/cppm_tracker/device_tracker.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_API_KEY
 )
 
-
+REQUIREMENTS = ['clearpasspy==1.0.2']
 
 SCAN_INTERVAL = timedelta(seconds=120)
 
diff --git a/homeassistant/components/cpuspeed/sensor.py b/homeassistant/components/cpuspeed/sensor.py
index 30ac7e34ca8..98d22c20d15 100644
--- a/homeassistant/components/cpuspeed/sensor.py
+++ b/homeassistant/components/cpuspeed/sensor.py
@@ -8,7 +8,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import CONF_NAME
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['py-cpuinfo==5.0.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/crimereports/sensor.py b/homeassistant/components/crimereports/sensor.py
index 7895578b2e7..13934675517 100644
--- a/homeassistant/components/crimereports/sensor.py
+++ b/homeassistant/components/crimereports/sensor.py
@@ -16,7 +16,7 @@ from homeassistant.util.distance import convert
 from homeassistant.util.dt import now
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['crimereports==1.0.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/cups/sensor.py b/homeassistant/components/cups/sensor.py
index 2b1371d093a..97f894aed86 100644
--- a/homeassistant/components/cups/sensor.py
+++ b/homeassistant/components/cups/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import CONF_HOST, CONF_PORT
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['pycups==1.9.73']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/daikin/__init__.py b/homeassistant/components/daikin/__init__.py
index 6e21fd919c2..8e96ccb8738 100644
--- a/homeassistant/components/daikin/__init__.py
+++ b/homeassistant/components/daikin/__init__.py
@@ -17,7 +17,7 @@ from homeassistant.util import Throttle
 
 from . import config_flow  # noqa  pylint_disable=unused-import
 
-
+REQUIREMENTS = ['pydaikin==1.4.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/danfoss_air/__init__.py b/homeassistant/components/danfoss_air/__init__.py
index 8b25b134a26..f4a7b92c17c 100644
--- a/homeassistant/components/danfoss_air/__init__.py
+++ b/homeassistant/components/danfoss_air/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['pydanfossair==0.0.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/darksky/sensor.py b/homeassistant/components/darksky/sensor.py
index 86b93ea2743..6aee3457acb 100644
--- a/homeassistant/components/darksky/sensor.py
+++ b/homeassistant/components/darksky/sensor.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['python-forecastio==1.4.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/darksky/weather.py b/homeassistant/components/darksky/weather.py
index 4a549750d7b..5b3db4312bf 100644
--- a/homeassistant/components/darksky/weather.py
+++ b/homeassistant/components/darksky/weather.py
@@ -16,7 +16,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 from homeassistant.util.pressure import convert as convert_pressure
-
+REQUIREMENTS = ['python-forecastio==1.4.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/datadog/__init__.py b/homeassistant/components/datadog/__init__.py
index b9800c77a38..3b519514d17 100644
--- a/homeassistant/components/datadog/__init__.py
+++ b/homeassistant/components/datadog/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
 from homeassistant.helpers import state as state_helper
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['datadog==0.15.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/deconz/__init__.py b/homeassistant/components/deconz/__init__.py
index 47aa00a47ac..807f82821fb 100644
--- a/homeassistant/components/deconz/__init__.py
+++ b/homeassistant/components/deconz/__init__.py
@@ -13,7 +13,7 @@ from .const import (
     CONF_MASTER_GATEWAY, DEFAULT_PORT, DOMAIN, _LOGGER)
 from .gateway import DeconzGateway
 
-
+REQUIREMENTS = ['pydeconz==54']
 
 CONFIG_SCHEMA = vol.Schema({
     DOMAIN: vol.Schema({
diff --git a/homeassistant/components/deconz/binary_sensor.py b/homeassistant/components/deconz/binary_sensor.py
index f8941d05838..70de1fd7cf4 100644
--- a/homeassistant/components/deconz/binary_sensor.py
+++ b/homeassistant/components/deconz/binary_sensor.py
@@ -8,7 +8,7 @@ from .const import ATTR_DARK, ATTR_ON, NEW_SENSOR
 from .deconz_device import DeconzDevice
 from .gateway import get_gateway_from_config_entry
 
-
+DEPENDENCIES = ['deconz']
 
 ATTR_ORIENTATION = 'orientation'
 ATTR_TILTANGLE = 'tiltangle'
diff --git a/homeassistant/components/deconz/climate.py b/homeassistant/components/deconz/climate.py
index 4bf1459d75f..c4327d3c497 100644
--- a/homeassistant/components/deconz/climate.py
+++ b/homeassistant/components/deconz/climate.py
@@ -11,7 +11,7 @@ from .const import ATTR_OFFSET, ATTR_VALVE, NEW_SENSOR
 from .deconz_device import DeconzDevice
 from .gateway import get_gateway_from_config_entry
 
-
+DEPENDENCIES = ['deconz']
 
 
 async def async_setup_entry(hass, config_entry, async_add_entities):
diff --git a/homeassistant/components/deconz/cover.py b/homeassistant/components/deconz/cover.py
index cfad5028076..903c1160eb8 100644
--- a/homeassistant/components/deconz/cover.py
+++ b/homeassistant/components/deconz/cover.py
@@ -9,7 +9,7 @@ from .const import COVER_TYPES, DAMPERS, NEW_LIGHT, WINDOW_COVERS
 from .deconz_device import DeconzDevice
 from .gateway import get_gateway_from_config_entry
 
-
+DEPENDENCIES = ['deconz']
 
 ZIGBEE_SPEC = ['lumi.curtain']
 
diff --git a/homeassistant/components/deconz/light.py b/homeassistant/components/deconz/light.py
index 135f7cf3867..b5a2b075f75 100644
--- a/homeassistant/components/deconz/light.py
+++ b/homeassistant/components/deconz/light.py
@@ -12,7 +12,7 @@ from .const import COVER_TYPES, NEW_GROUP, NEW_LIGHT, SWITCH_TYPES
 from .deconz_device import DeconzDevice
 from .gateway import get_gateway_from_config_entry
 
-
+DEPENDENCIES = ['deconz']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/deconz/scene.py b/homeassistant/components/deconz/scene.py
index 5035f5b3693..1ae1e079daa 100644
--- a/homeassistant/components/deconz/scene.py
+++ b/homeassistant/components/deconz/scene.py
@@ -6,7 +6,7 @@ from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from .const import NEW_SCENE
 from .gateway import get_gateway_from_config_entry
 
-
+DEPENDENCIES = ['deconz']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/deconz/sensor.py b/homeassistant/components/deconz/sensor.py
index 63d23a7913d..7c3109e1f59 100644
--- a/homeassistant/components/deconz/sensor.py
+++ b/homeassistant/components/deconz/sensor.py
@@ -9,7 +9,7 @@ from .const import ATTR_DARK, ATTR_ON, NEW_SENSOR
 from .deconz_device import DeconzDevice
 from .gateway import get_gateway_from_config_entry
 
-
+DEPENDENCIES = ['deconz']
 
 ATTR_CURRENT = 'current'
 ATTR_DAYLIGHT = 'daylight'
diff --git a/homeassistant/components/deconz/switch.py b/homeassistant/components/deconz/switch.py
index 40826635d67..b9f959766fc 100644
--- a/homeassistant/components/deconz/switch.py
+++ b/homeassistant/components/deconz/switch.py
@@ -7,7 +7,7 @@ from .const import NEW_LIGHT, POWER_PLUGS, SIRENS
 from .deconz_device import DeconzDevice
 from .gateway import get_gateway_from_config_entry
 
-
+DEPENDENCIES = ['deconz']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/decora/light.py b/homeassistant/components/decora/light.py
index 090d58fcb1a..fc8b2859c07 100644
--- a/homeassistant/components/decora/light.py
+++ b/homeassistant/components/decora/light.py
@@ -12,7 +12,7 @@ from homeassistant.components.light import (
     PLATFORM_SCHEMA)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['decora==0.6', 'bluepy==1.1.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/decora_wifi/light.py b/homeassistant/components/decora_wifi/light.py
index 5d2592b019a..b7be6bffb01 100644
--- a/homeassistant/components/decora_wifi/light.py
+++ b/homeassistant/components/decora_wifi/light.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
     EVENT_HOMEASSISTANT_STOP)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['decora_wifi==1.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/deluge/sensor.py b/homeassistant/components/deluge/sensor.py
index 5665a409d8c..32b1c16a47c 100644
--- a/homeassistant/components/deluge/sensor.py
+++ b/homeassistant/components/deluge/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
 from homeassistant.helpers.entity import Entity
 from homeassistant.exceptions import PlatformNotReady
 
-
+REQUIREMENTS = ['deluge-client==1.4.0']
 
 _LOGGER = logging.getLogger(__name__)
 _THROTTLED_REFRESH = None
diff --git a/homeassistant/components/deluge/switch.py b/homeassistant/components/deluge/switch.py
index 52db97dd708..d7c60bd96e2 100644
--- a/homeassistant/components/deluge/switch.py
+++ b/homeassistant/components/deluge/switch.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
 from homeassistant.helpers.entity import ToggleEntity
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['deluge-client==1.4.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/demo/__init__.py b/homeassistant/components/demo/__init__.py
index 698ca1aba1a..354f0c0e375 100644
--- a/homeassistant/components/demo/__init__.py
+++ b/homeassistant/components/demo/__init__.py
@@ -7,7 +7,7 @@ from homeassistant import bootstrap
 import homeassistant.core as ha
 from homeassistant.const import ATTR_ENTITY_ID, CONF_PLATFORM
 
-
+DEPENDENCIES = ['conversation', 'zone']
 DOMAIN = 'demo'
 
 COMPONENTS_WITH_DEMO_PLATFORM = [
diff --git a/homeassistant/components/denonavr/media_player.py b/homeassistant/components/denonavr/media_player.py
index c94c812b0a1..0adafe4f472 100644
--- a/homeassistant/components/denonavr/media_player.py
+++ b/homeassistant/components/denonavr/media_player.py
@@ -18,7 +18,7 @@ from homeassistant.const import (
     STATE_PAUSED, STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['denonavr==0.7.8']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/deutsche_bahn/sensor.py b/homeassistant/components/deutsche_bahn/sensor.py
index e308e935ad1..41584b2561f 100644
--- a/homeassistant/components/deutsche_bahn/sensor.py
+++ b/homeassistant/components/deutsche_bahn/sensor.py
@@ -9,7 +9,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['schiene==0.23']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/device_sun_light_trigger/__init__.py b/homeassistant/components/device_sun_light_trigger/__init__.py
index 696584275e7..00adefc6b5c 100644
--- a/homeassistant/components/device_sun_light_trigger/__init__.py
+++ b/homeassistant/components/device_sun_light_trigger/__init__.py
@@ -17,7 +17,7 @@ from homeassistant.helpers.sun import is_up, get_astral_event_next
 import homeassistant.helpers.config_validation as cv
 
 DOMAIN = 'device_sun_light_trigger'
-
+DEPENDENCIES = ['light', 'device_tracker', 'group']
 
 CONF_DEVICE_GROUP = 'device_group'
 CONF_DISABLE_TURN_OFF = 'disable_turn_off'
diff --git a/homeassistant/components/device_tracker/__init__.py b/homeassistant/components/device_tracker/__init__.py
index a85113f0832..42d301721da 100644
--- a/homeassistant/components/device_tracker/__init__.py
+++ b/homeassistant/components/device_tracker/__init__.py
@@ -35,7 +35,7 @@ from homeassistant.const import (
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'device_tracker'
-
+DEPENDENCIES = ['zone', 'group']
 
 GROUP_NAME_ALL_DEVICES = 'all devices'
 ENTITY_ID_ALL_DEVICES = group.ENTITY_ID_FORMAT.format('all_devices')
diff --git a/homeassistant/components/dht/sensor.py b/homeassistant/components/dht/sensor.py
index 1c9478a3fd3..719c2525f0a 100644
--- a/homeassistant/components/dht/sensor.py
+++ b/homeassistant/components/dht/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 from homeassistant.util.temperature import celsius_to_fahrenheit
 
-
+REQUIREMENTS = ['Adafruit-DHT==1.4.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/dialogflow/__init__.py b/homeassistant/components/dialogflow/__init__.py
index 00a9dd5242b..1536fe3d236 100644
--- a/homeassistant/components/dialogflow/__init__.py
+++ b/homeassistant/components/dialogflow/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.helpers import intent, template, config_entry_flow
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['webhook']
 DOMAIN = 'dialogflow'
 
 SOURCE = "Home Assistant Dialogflow"
diff --git a/homeassistant/components/digital_ocean/__init__.py b/homeassistant/components/digital_ocean/__init__.py
index 2a024ba69e3..7975a6eea0d 100644
--- a/homeassistant/components/digital_ocean/__init__.py
+++ b/homeassistant/components/digital_ocean/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.const import CONF_ACCESS_TOKEN
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['python-digitalocean==1.13.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/digital_ocean/binary_sensor.py b/homeassistant/components/digital_ocean/binary_sensor.py
index 69b4432f441..d496a09161b 100644
--- a/homeassistant/components/digital_ocean/binary_sensor.py
+++ b/homeassistant/components/digital_ocean/binary_sensor.py
@@ -17,7 +17,7 @@ _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Droplet'
 DEFAULT_DEVICE_CLASS = 'moving'
-
+DEPENDENCIES = ['digital_ocean']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_DROPLETS): vol.All(cv.ensure_list, [cv.string]),
diff --git a/homeassistant/components/digital_ocean/switch.py b/homeassistant/components/digital_ocean/switch.py
index 4285e408126..bc4a6a29b42 100644
--- a/homeassistant/components/digital_ocean/switch.py
+++ b/homeassistant/components/digital_ocean/switch.py
@@ -14,7 +14,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['digital_ocean']
 
 DEFAULT_NAME = 'Droplet'
 
diff --git a/homeassistant/components/digitalloggers/switch.py b/homeassistant/components/digitalloggers/switch.py
index 7f6b3bf185e..89973cfad0c 100644
--- a/homeassistant/components/digitalloggers/switch.py
+++ b/homeassistant/components/digitalloggers/switch.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['dlipower==0.7.165']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/directv/media_player.py b/homeassistant/components/directv/media_player.py
index 59a4bd18d23..3a30282bdf4 100644
--- a/homeassistant/components/directv/media_player.py
+++ b/homeassistant/components/directv/media_player.py
@@ -15,7 +15,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['directpy==0.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/discogs/sensor.py b/homeassistant/components/discogs/sensor.py
index da40d2d3b72..f8d66688b4f 100644
--- a/homeassistant/components/discogs/sensor.py
+++ b/homeassistant/components/discogs/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.helpers.aiohttp_client import SERVER_SOFTWARE
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['discogs_client==2.2.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/discord/notify.py b/homeassistant/components/discord/notify.py
index ebe676d3317..cb6fc8329c6 100644
--- a/homeassistant/components/discord/notify.py
+++ b/homeassistant/components/discord/notify.py
@@ -12,7 +12,7 @@ from homeassistant.components.notify import (ATTR_DATA, ATTR_TARGET,
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['discord.py==0.16.12']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_TOKEN): cv.string
diff --git a/homeassistant/components/discovery/__init__.py b/homeassistant/components/discovery/__init__.py
index a5212a6f107..8e3a350c5ca 100644
--- a/homeassistant/components/discovery/__init__.py
+++ b/homeassistant/components/discovery/__init__.py
@@ -20,7 +20,7 @@ from homeassistant.helpers.event import async_track_point_in_utc_time
 from homeassistant.helpers.discovery import async_load_platform, async_discover
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['netdisco==2.6.0']
 
 DOMAIN = 'discovery'
 
diff --git a/homeassistant/components/dlib_face_detect/image_processing.py b/homeassistant/components/dlib_face_detect/image_processing.py
index 0d4b37b4a15..49fbfadff7e 100644
--- a/homeassistant/components/dlib_face_detect/image_processing.py
+++ b/homeassistant/components/dlib_face_detect/image_processing.py
@@ -8,7 +8,7 @@ from homeassistant.components.image_processing import PLATFORM_SCHEMA  # noqa
 from homeassistant.components.image_processing import (
     ImageProcessingFaceEntity, CONF_SOURCE, CONF_ENTITY_ID, CONF_NAME)
 
-
+REQUIREMENTS = ['face_recognition==1.2.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/dlib_face_identify/image_processing.py b/homeassistant/components/dlib_face_identify/image_processing.py
index 6ad90893723..a3b91235125 100644
--- a/homeassistant/components/dlib_face_identify/image_processing.py
+++ b/homeassistant/components/dlib_face_identify/image_processing.py
@@ -10,7 +10,7 @@ from homeassistant.components.image_processing import (
     CONF_NAME)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['face_recognition==1.2.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/dlink/switch.py b/homeassistant/components/dlink/switch.py
index 8c0a0ad0b8f..812fd3882b3 100644
--- a/homeassistant/components/dlink/switch.py
+++ b/homeassistant/components/dlink/switch.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import dt as dt_util
 
-
+REQUIREMENTS = ['pyW215==0.6.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/dlna_dmr/media_player.py b/homeassistant/components/dlna_dmr/media_player.py
index 8b68eaa3723..54c19f70ef3 100644
--- a/homeassistant/components/dlna_dmr/media_player.py
+++ b/homeassistant/components/dlna_dmr/media_player.py
@@ -27,7 +27,7 @@ from homeassistant.helpers.typing import HomeAssistantType
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import get_local_ip
 
-
+REQUIREMENTS = ['async-upnp-client==0.14.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/dnsip/sensor.py b/homeassistant/components/dnsip/sensor.py
index 04391d0aefa..13c9be7bb14 100644
--- a/homeassistant/components/dnsip/sensor.py
+++ b/homeassistant/components/dnsip/sensor.py
@@ -8,7 +8,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['aiodns==1.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/dominos/__init__.py b/homeassistant/components/dominos/__init__.py
index 9a3aa02afdf..1c8966f3b4b 100644
--- a/homeassistant/components/dominos/__init__.py
+++ b/homeassistant/components/dominos/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.entity_component import EntityComponent
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['pizzapi==0.0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -34,7 +34,7 @@ ATTR_ORDER_CODES = 'codes'
 MIN_TIME_BETWEEN_UPDATES = timedelta(minutes=10)
 MIN_TIME_BETWEEN_STORE_UPDATES = timedelta(minutes=3330)
 
-
+DEPENDENCIES = ['http']
 
 _ORDERS_SCHEMA = vol.Schema({
     vol.Required(ATTR_ORDER_NAME): cv.string,
diff --git a/homeassistant/components/doorbird/__init__.py b/homeassistant/components/doorbird/__init__.py
index 15bf0bbaead..25a2c5caff9 100644
--- a/homeassistant/components/doorbird/__init__.py
+++ b/homeassistant/components/doorbird/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import dt as dt_util, slugify
 
-
+REQUIREMENTS = ['doorbirdpy==2.0.8']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/doorbird/camera.py b/homeassistant/components/doorbird/camera.py
index 89cc5211f04..a93b0fbf194 100644
--- a/homeassistant/components/doorbird/camera.py
+++ b/homeassistant/components/doorbird/camera.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
 from . import DOMAIN as DOORBIRD_DOMAIN
 
-
+DEPENDENCIES = ['doorbird']
 
 _CAMERA_LAST_VISITOR = "{} Last Ring"
 _CAMERA_LAST_MOTION = "{} Last Motion"
diff --git a/homeassistant/components/doorbird/switch.py b/homeassistant/components/doorbird/switch.py
index be1de1cc853..ba6f96660d1 100644
--- a/homeassistant/components/doorbird/switch.py
+++ b/homeassistant/components/doorbird/switch.py
@@ -6,7 +6,7 @@ from homeassistant.components.switch import SwitchDevice
 
 from . import DOMAIN as DOORBIRD_DOMAIN
 
-
+DEPENDENCIES = ['doorbird']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/dovado/__init__.py b/homeassistant/components/dovado/__init__.py
index 496e0ef676d..df2eed3011a 100644
--- a/homeassistant/components/dovado/__init__.py
+++ b/homeassistant/components/dovado/__init__.py
@@ -12,7 +12,7 @@ from homeassistant.util import Throttle
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['dovado==0.4.1']
 
 DOMAIN = 'dovado'
 
diff --git a/homeassistant/components/dovado/notify.py b/homeassistant/components/dovado/notify.py
index df1269e3b97..59827529ed3 100644
--- a/homeassistant/components/dovado/notify.py
+++ b/homeassistant/components/dovado/notify.py
@@ -8,7 +8,7 @@ from . import DOMAIN as DOVADO_DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['dovado']
 
 
 def get_service(hass, config, discovery_info=None):
diff --git a/homeassistant/components/dovado/sensor.py b/homeassistant/components/dovado/sensor.py
index 558e9cc3216..56c4ee03a3a 100644
--- a/homeassistant/components/dovado/sensor.py
+++ b/homeassistant/components/dovado/sensor.py
@@ -14,7 +14,7 @@ from . import DOMAIN as DOVADO_DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['dovado']
 
 MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=30)
 
diff --git a/homeassistant/components/dsmr/sensor.py b/homeassistant/components/dsmr/sensor.py
index c93b83c4ec3..74f6cb37fc2 100644
--- a/homeassistant/components/dsmr/sensor.py
+++ b/homeassistant/components/dsmr/sensor.py
@@ -15,7 +15,7 @@ from homeassistant.helpers.entity import Entity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['dsmr_parser==0.12']
 
 CONF_DSMR_VERSION = 'dsmr_version'
 CONF_RECONNECT_INTERVAL = 'reconnect_interval'
diff --git a/homeassistant/components/duke_energy/sensor.py b/homeassistant/components/duke_energy/sensor.py
index 5b8b51a6955..9aada348418 100644
--- a/homeassistant/components/duke_energy/sensor.py
+++ b/homeassistant/components/duke_energy/sensor.py
@@ -8,7 +8,7 @@ from homeassistant.const import CONF_USERNAME, CONF_PASSWORD
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pydukeenergy==0.0.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/dunehd/media_player.py b/homeassistant/components/dunehd/media_player.py
index 62a43267071..70d96424ced 100644
--- a/homeassistant/components/dunehd/media_player.py
+++ b/homeassistant/components/dunehd/media_player.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_NAME, STATE_OFF, STATE_ON, STATE_PAUSED, STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pdunehd==1.3']
 
 DEFAULT_NAME = 'DuneHD'
 
diff --git a/homeassistant/components/dweet/__init__.py b/homeassistant/components/dweet/__init__.py
index 4b3716020dc..f8e5b181163 100644
--- a/homeassistant/components/dweet/__init__.py
+++ b/homeassistant/components/dweet/__init__.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers import state as state_helper
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['dweepy==0.3.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/dweet/sensor.py b/homeassistant/components/dweet/sensor.py
index 73273a0200f..d1a64201e6d 100644
--- a/homeassistant/components/dweet/sensor.py
+++ b/homeassistant/components/dweet/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
     CONF_NAME, CONF_VALUE_TEMPLATE, CONF_UNIT_OF_MEASUREMENT, CONF_DEVICE)
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['dweepy==0.3.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/dyson/__init__.py b/homeassistant/components/dyson/__init__.py
index 04dbcbc4bb7..eccf8aac364 100644
--- a/homeassistant/components/dyson/__init__.py
+++ b/homeassistant/components/dyson/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.const import (
     CONF_DEVICES, CONF_PASSWORD, CONF_TIMEOUT, CONF_USERNAME)
 from homeassistant.helpers import discovery
 
-
+REQUIREMENTS = ['libpurecool==0.5.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/dyson/fan.py b/homeassistant/components/dyson/fan.py
index dd49ca4522d..0140378968b 100644
--- a/homeassistant/components/dyson/fan.py
+++ b/homeassistant/components/dyson/fan.py
@@ -27,7 +27,7 @@ ATTR_CARBON_FILTER = 'carbon_filter'
 ATTR_DYSON_SPEED = 'dyson_speed'
 ATTR_DYSON_SPEED_LIST = 'dyson_speed_list'
 
-
+DEPENDENCIES = ['dyson']
 DYSON_DOMAIN = 'dyson'
 DYSON_FAN_DEVICES = 'dyson_fan_devices'
 
diff --git a/homeassistant/components/dyson/sensor.py b/homeassistant/components/dyson/sensor.py
index 09a2fd4478c..2c7a71f5724 100644
--- a/homeassistant/components/dyson/sensor.py
+++ b/homeassistant/components/dyson/sensor.py
@@ -6,7 +6,7 @@ from homeassistant.helpers.entity import Entity
 
 from . import DYSON_DEVICES
 
-
+DEPENDENCIES = ['dyson']
 
 SENSOR_UNITS = {
     'air_quality': None,
diff --git a/homeassistant/components/dyson/vacuum.py b/homeassistant/components/dyson/vacuum.py
index 7f800a0d8fe..f1822b4043b 100644
--- a/homeassistant/components/dyson/vacuum.py
+++ b/homeassistant/components/dyson/vacuum.py
@@ -15,7 +15,7 @@ ATTR_CLEAN_ID = 'clean_id'
 ATTR_FULL_CLEAN_TYPE = 'full_clean_type'
 ATTR_POSITION = 'position'
 
-
+DEPENDENCIES = ['dyson']
 
 DYSON_360_EYE_DEVICES = "dyson_360_eye_devices"
 
diff --git a/homeassistant/components/ebox/sensor.py b/homeassistant/components/ebox/sensor.py
index 9ce475c64f1..24458e444dc 100644
--- a/homeassistant/components/ebox/sensor.py
+++ b/homeassistant/components/ebox/sensor.py
@@ -21,7 +21,7 @@ from homeassistant.util import Throttle
 from homeassistant.exceptions import PlatformNotReady
 
 
-
+REQUIREMENTS = ['pyebox==1.1.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ebusd/__init__.py b/homeassistant/components/ebusd/__init__.py
index 797a8a5cb20..bc1b3aa9595 100644
--- a/homeassistant/components/ebusd/__init__.py
+++ b/homeassistant/components/ebusd/__init__.py
@@ -13,7 +13,7 @@ from homeassistant.util import Throttle
 
 from .const import (DOMAIN, SENSOR_TYPES)
 
-
+REQUIREMENTS = ['ebusdpy==0.0.16']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ebusd/sensor.py b/homeassistant/components/ebusd/sensor.py
index 75e7237f09b..942ba107509 100644
--- a/homeassistant/components/ebusd/sensor.py
+++ b/homeassistant/components/ebusd/sensor.py
@@ -6,7 +6,7 @@ from homeassistant.helpers.entity import Entity
 
 from .const import DOMAIN
 
-
+DEPENDENCIES = ['ebusd']
 
 TIME_FRAME1_BEGIN = 'time_frame1_begin'
 TIME_FRAME1_END = 'time_frame1_end'
diff --git a/homeassistant/components/ecoal_boiler/__init__.py b/homeassistant/components/ecoal_boiler/__init__.py
index 18bb8171deb..6ab9fc3181c 100644
--- a/homeassistant/components/ecoal_boiler/__init__.py
+++ b/homeassistant/components/ecoal_boiler/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.const import (CONF_HOST, CONF_PASSWORD, CONF_USERNAME,
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import load_platform
 
-
+REQUIREMENTS = ['ecoaliface==0.4.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ecoal_boiler/sensor.py b/homeassistant/components/ecoal_boiler/sensor.py
index deb9248569f..ef8b39842d9 100644
--- a/homeassistant/components/ecoal_boiler/sensor.py
+++ b/homeassistant/components/ecoal_boiler/sensor.py
@@ -8,7 +8,7 @@ from . import AVAILABLE_SENSORS, DATA_ECOAL_BOILER
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['ecoal_boiler']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/ecoal_boiler/switch.py b/homeassistant/components/ecoal_boiler/switch.py
index 0221cc65f20..db8759a032a 100644
--- a/homeassistant/components/ecoal_boiler/switch.py
+++ b/homeassistant/components/ecoal_boiler/switch.py
@@ -8,7 +8,7 @@ from . import AVAILABLE_PUMPS, DATA_ECOAL_BOILER
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['ecoal_boiler']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/ecobee/__init__.py b/homeassistant/components/ecobee/__init__.py
index ef032b3cb3e..167132a5f41 100644
--- a/homeassistant/components/ecobee/__init__.py
+++ b/homeassistant/components/ecobee/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.const import CONF_API_KEY
 from homeassistant.util import Throttle
 from homeassistant.util.json import save_json
 
-
+REQUIREMENTS = ['python-ecobee-api==0.0.18']
 
 _CONFIGURING = {}
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/ecobee/binary_sensor.py b/homeassistant/components/ecobee/binary_sensor.py
index db69197f16e..ca8e551bf5e 100644
--- a/homeassistant/components/ecobee/binary_sensor.py
+++ b/homeassistant/components/ecobee/binary_sensor.py
@@ -2,7 +2,7 @@
 from homeassistant.components import ecobee
 from homeassistant.components.binary_sensor import BinarySensorDevice
 
-
+DEPENDENCIES = ['ecobee']
 
 ECOBEE_CONFIG_FILE = 'ecobee.conf'
 
diff --git a/homeassistant/components/ecobee/climate.py b/homeassistant/components/ecobee/climate.py
index e49879f3bae..44a3800afa9 100644
--- a/homeassistant/components/ecobee/climate.py
+++ b/homeassistant/components/ecobee/climate.py
@@ -27,7 +27,7 @@ TEMPERATURE_HOLD = 'temp'
 VACATION_HOLD = 'vacation'
 AWAY_MODE = 'awayMode'
 
-
+DEPENDENCIES = ['ecobee']
 
 SERVICE_SET_FAN_MIN_ON_TIME = 'ecobee_set_fan_min_on_time'
 SERVICE_RESUME_PROGRAM = 'ecobee_resume_program'
diff --git a/homeassistant/components/ecobee/notify.py b/homeassistant/components/ecobee/notify.py
index c2d4f753cc7..9824d20b85e 100644
--- a/homeassistant/components/ecobee/notify.py
+++ b/homeassistant/components/ecobee/notify.py
@@ -10,7 +10,7 @@ from homeassistant.components.notify import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['ecobee']
 
 CONF_INDEX = 'index'
 
diff --git a/homeassistant/components/ecobee/sensor.py b/homeassistant/components/ecobee/sensor.py
index bac1e6a441d..1f9fd5cbde8 100644
--- a/homeassistant/components/ecobee/sensor.py
+++ b/homeassistant/components/ecobee/sensor.py
@@ -4,7 +4,7 @@ from homeassistant.const import (
     DEVICE_CLASS_HUMIDITY, DEVICE_CLASS_TEMPERATURE, TEMP_FAHRENHEIT)
 from homeassistant.helpers.entity import Entity
 
-
+DEPENDENCIES = ['ecobee']
 
 ECOBEE_CONFIG_FILE = 'ecobee.conf'
 
diff --git a/homeassistant/components/ecobee/weather.py b/homeassistant/components/ecobee/weather.py
index 9eda034e650..2ba5f362b7d 100644
--- a/homeassistant/components/ecobee/weather.py
+++ b/homeassistant/components/ecobee/weather.py
@@ -7,7 +7,7 @@ from homeassistant.components.weather import (
     ATTR_FORECAST_TIME, ATTR_FORECAST_WIND_SPEED, WeatherEntity)
 from homeassistant.const import TEMP_FAHRENHEIT
 
-
+DEPENDENCIES = ['ecobee']
 
 ATTR_FORECAST_TEMP_HIGH = 'temphigh'
 ATTR_FORECAST_PRESSURE = 'pressure'
diff --git a/homeassistant/components/econet/water_heater.py b/homeassistant/components/econet/water_heater.py
index bdb63beca21..90176842bf1 100644
--- a/homeassistant/components/econet/water_heater.py
+++ b/homeassistant/components/econet/water_heater.py
@@ -13,7 +13,7 @@ from homeassistant.const import (
     TEMP_FAHRENHEIT)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pyeconet==0.0.10']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ecovacs/__init__.py b/homeassistant/components/ecovacs/__init__.py
index 8f438ca5df5..124cae3ca47 100644
--- a/homeassistant/components/ecovacs/__init__.py
+++ b/homeassistant/components/ecovacs/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['sucks==0.9.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ecovacs/vacuum.py b/homeassistant/components/ecovacs/vacuum.py
index 97f9ad79e03..b9fe94f2bed 100644
--- a/homeassistant/components/ecovacs/vacuum.py
+++ b/homeassistant/components/ecovacs/vacuum.py
@@ -11,7 +11,7 @@ from . import ECOVACS_DEVICES
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['ecovacs']
 
 SUPPORT_ECOVACS = (
     SUPPORT_BATTERY | SUPPORT_RETURN_HOME | SUPPORT_CLEAN_SPOT |
diff --git a/homeassistant/components/eddystone_temperature/sensor.py b/homeassistant/components/eddystone_temperature/sensor.py
index 605e8b4cf1c..ae3d498d30c 100644
--- a/homeassistant/components/eddystone_temperature/sensor.py
+++ b/homeassistant/components/eddystone_temperature/sensor.py
@@ -18,7 +18,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['beacontools[scan]==1.2.3', 'construct==2.9.45']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/edimax/switch.py b/homeassistant/components/edimax/switch.py
index f1a81a3a04f..338e6ac932c 100644
--- a/homeassistant/components/edimax/switch.py
+++ b/homeassistant/components/edimax/switch.py
@@ -8,7 +8,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_NAME, CONF_PASSWORD, CONF_USERNAME)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pyedimax==0.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/edp_redy/__init__.py b/homeassistant/components/edp_redy/__init__.py
index b6de302c7af..9b8bfaa437a 100644
--- a/homeassistant/components/edp_redy/__init__.py
+++ b/homeassistant/components/edp_redy/__init__.py
@@ -20,7 +20,7 @@ EDP_REDY = 'edp_redy'
 DATA_UPDATE_TOPIC = '{0}_data_update'.format(DOMAIN)
 UPDATE_INTERVAL = 60
 
-
+REQUIREMENTS = ['edp_redy==0.0.3']
 
 CONFIG_SCHEMA = vol.Schema({
     DOMAIN: vol.Schema({
diff --git a/homeassistant/components/edp_redy/sensor.py b/homeassistant/components/edp_redy/sensor.py
index 83de7a5ce8d..b8f9c031c29 100644
--- a/homeassistant/components/edp_redy/sensor.py
+++ b/homeassistant/components/edp_redy/sensor.py
@@ -8,7 +8,7 @@ from . import EDP_REDY, EdpRedyDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['edp_redy']
 
 # Load power in watts (W)
 ATTR_ACTIVE_POWER = 'active_power'
diff --git a/homeassistant/components/edp_redy/switch.py b/homeassistant/components/edp_redy/switch.py
index 67b5dbeb4d5..0c92f80ccf6 100644
--- a/homeassistant/components/edp_redy/switch.py
+++ b/homeassistant/components/edp_redy/switch.py
@@ -7,7 +7,7 @@ from . import EDP_REDY, EdpRedyDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['edp_redy']
 
 # Load power in watts (W)
 ATTR_ACTIVE_POWER = 'active_power'
diff --git a/homeassistant/components/ee_brightbox/device_tracker.py b/homeassistant/components/ee_brightbox/device_tracker.py
index b39d0708553..46e4a3c3c24 100644
--- a/homeassistant/components/ee_brightbox/device_tracker.py
+++ b/homeassistant/components/ee_brightbox/device_tracker.py
@@ -8,7 +8,7 @@ from homeassistant.components.device_tracker import (
 from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_USERNAME
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['eebrightbox==0.0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/egardia/__init__.py b/homeassistant/components/egardia/__init__.py
index 20ac192a843..fe613824c95 100644
--- a/homeassistant/components/egardia/__init__.py
+++ b/homeassistant/components/egardia/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pythonegardia==1.0.39']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/egardia/alarm_control_panel.py b/homeassistant/components/egardia/alarm_control_panel.py
index 9db8fa2e5f8..7fc60d5fb5d 100644
--- a/homeassistant/components/egardia/alarm_control_panel.py
+++ b/homeassistant/components/egardia/alarm_control_panel.py
@@ -13,7 +13,7 @@ from . import (
     CONF_REPORT_SERVER_PORT, EGARDIA_DEVICE, EGARDIA_SERVER,
     REPORT_SERVER_CODES_IGNORE)
 
-
+DEPENDENCIES = ['egardia']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/egardia/binary_sensor.py b/homeassistant/components/egardia/binary_sensor.py
index e1b0d42626b..d11894ae675 100644
--- a/homeassistant/components/egardia/binary_sensor.py
+++ b/homeassistant/components/egardia/binary_sensor.py
@@ -8,7 +8,7 @@ from . import ATTR_DISCOVER_DEVICES, EGARDIA_DEVICE
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['egardia']
 
 EGARDIA_TYPE_TO_DEVICE_CLASS = {
     'IR Sensor': 'motion',
diff --git a/homeassistant/components/eight_sleep/__init__.py b/homeassistant/components/eight_sleep/__init__.py
index f19338d9c2f..ca6c8a5a5c6 100644
--- a/homeassistant/components/eight_sleep/__init__.py
+++ b/homeassistant/components/eight_sleep/__init__.py
@@ -16,7 +16,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import async_track_point_in_utc_time
 from homeassistant.util.dt import utcnow
 
-
+REQUIREMENTS = ['pyeight==0.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/eight_sleep/binary_sensor.py b/homeassistant/components/eight_sleep/binary_sensor.py
index 97d658bb6d7..a3ca27b570d 100644
--- a/homeassistant/components/eight_sleep/binary_sensor.py
+++ b/homeassistant/components/eight_sleep/binary_sensor.py
@@ -7,7 +7,7 @@ from . import CONF_BINARY_SENSORS, DATA_EIGHT, NAME_MAP, EightSleepHeatEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['eight_sleep']
 
 
 async def async_setup_platform(hass, config, async_add_entities,
diff --git a/homeassistant/components/eight_sleep/sensor.py b/homeassistant/components/eight_sleep/sensor.py
index c41dde3caf1..a1ad93ec54a 100644
--- a/homeassistant/components/eight_sleep/sensor.py
+++ b/homeassistant/components/eight_sleep/sensor.py
@@ -5,7 +5,7 @@ from . import (
     CONF_SENSORS, DATA_EIGHT, NAME_MAP, EightSleepHeatEntity,
     EightSleepUserEntity)
 
-
+DEPENDENCIES = ['eight_sleep']
 
 ATTR_ROOM_TEMP = 'Room Temperature'
 ATTR_AVG_ROOM_TEMP = 'Average Room Temperature'
diff --git a/homeassistant/components/eliqonline/sensor.py b/homeassistant/components/eliqonline/sensor.py
index a1aa5d56bdc..198ca327997 100644
--- a/homeassistant/components/eliqonline/sensor.py
+++ b/homeassistant/components/eliqonline/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-
+REQUIREMENTS = ['eliqonline==1.2.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/elkm1/__init__.py b/homeassistant/components/elkm1/__init__.py
index 12c6dfcf6aa..a0c08bf5429 100644
--- a/homeassistant/components/elkm1/__init__.py
+++ b/homeassistant/components/elkm1/__init__.py
@@ -12,7 +12,7 @@ from homeassistant.helpers import discovery
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.typing import ConfigType  # noqa
 
-
+REQUIREMENTS = ['elkm1-lib==0.7.13']
 
 DOMAIN = 'elkm1'
 
diff --git a/homeassistant/components/elkm1/alarm_control_panel.py b/homeassistant/components/elkm1/alarm_control_panel.py
index a2f45aa2c2e..e9155dd17b5 100644
--- a/homeassistant/components/elkm1/alarm_control_panel.py
+++ b/homeassistant/components/elkm1/alarm_control_panel.py
@@ -12,7 +12,7 @@ from homeassistant.helpers.dispatcher import (
 
 from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
 
-
+DEPENDENCIES = [ELK_DOMAIN]
 
 SIGNAL_ARM_ENTITY = 'elkm1_arm'
 SIGNAL_DISPLAY_MESSAGE = 'elkm1_display_message'
diff --git a/homeassistant/components/elkm1/climate.py b/homeassistant/components/elkm1/climate.py
index 7ad5c72b1d5..93e4aa66b23 100644
--- a/homeassistant/components/elkm1/climate.py
+++ b/homeassistant/components/elkm1/climate.py
@@ -9,7 +9,7 @@ from homeassistant.const import PRECISION_WHOLE, STATE_ON
 
 from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
 
-
+DEPENDENCIES = [ELK_DOMAIN]
 
 
 async def async_setup_platform(hass, config, async_add_entities,
diff --git a/homeassistant/components/elkm1/light.py b/homeassistant/components/elkm1/light.py
index 1c908672aa9..fe84ab3f251 100644
--- a/homeassistant/components/elkm1/light.py
+++ b/homeassistant/components/elkm1/light.py
@@ -4,7 +4,7 @@ from homeassistant.components.light import (
 
 from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
 
-
+DEPENDENCIES = [ELK_DOMAIN]
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/elkm1/scene.py b/homeassistant/components/elkm1/scene.py
index 671c0056d69..1d08f4cf96d 100644
--- a/homeassistant/components/elkm1/scene.py
+++ b/homeassistant/components/elkm1/scene.py
@@ -3,7 +3,7 @@ from homeassistant.components.scene import Scene
 
 from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
 
-
+DEPENDENCIES = [ELK_DOMAIN]
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/elkm1/sensor.py b/homeassistant/components/elkm1/sensor.py
index 4ce93ab1295..da27a3ac4b1 100644
--- a/homeassistant/components/elkm1/sensor.py
+++ b/homeassistant/components/elkm1/sensor.py
@@ -1,7 +1,7 @@
 """Support for control of ElkM1 sensors."""
 from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
 
-
+DEPENDENCIES = [ELK_DOMAIN]
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/elkm1/switch.py b/homeassistant/components/elkm1/switch.py
index 050999fa973..740a2965865 100644
--- a/homeassistant/components/elkm1/switch.py
+++ b/homeassistant/components/elkm1/switch.py
@@ -3,7 +3,7 @@ from homeassistant.components.switch import SwitchDevice
 
 from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
 
-
+DEPENDENCIES = [ELK_DOMAIN]
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/emby/media_player.py b/homeassistant/components/emby/media_player.py
index f84b1013e7b..8a94664f352 100644
--- a/homeassistant/components/emby/media_player.py
+++ b/homeassistant/components/emby/media_player.py
@@ -17,7 +17,7 @@ from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['pyemby==1.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/emulated_roku/__init__.py b/homeassistant/components/emulated_roku/__init__.py
index 19550de7f68..ef87e14ec43 100644
--- a/homeassistant/components/emulated_roku/__init__.py
+++ b/homeassistant/components/emulated_roku/__init__.py
@@ -11,7 +11,7 @@ from .const import (
     CONF_ADVERTISE_IP, CONF_ADVERTISE_PORT, CONF_HOST_IP, CONF_LISTEN_PORT,
     CONF_SERVERS, CONF_UPNP_BIND_MULTICAST, DOMAIN)
 
-
+REQUIREMENTS = ['emulated_roku==0.1.8']
 
 SERVER_CONFIG_SCHEMA = vol.Schema({
     vol.Required(CONF_NAME): cv.string,
diff --git a/homeassistant/components/enigma2/media_player.py b/homeassistant/components/enigma2/media_player.py
index 2fb3c270f4c..11c3e0fe3ce 100644
--- a/homeassistant/components/enigma2/media_player.py
+++ b/homeassistant/components/enigma2/media_player.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
     STATE_OFF, STATE_ON, STATE_PLAYING, CONF_PORT)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['openwebifpy==3.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/enocean/__init__.py b/homeassistant/components/enocean/__init__.py
index 818a9ac14df..8b3c27025cd 100644
--- a/homeassistant/components/enocean/__init__.py
+++ b/homeassistant/components/enocean/__init__.py
@@ -6,7 +6,7 @@ import voluptuous as vol
 from homeassistant.const import CONF_DEVICE
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['enocean==0.40']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/enocean/binary_sensor.py b/homeassistant/components/enocean/binary_sensor.py
index e87433101cd..1fde8c79e40 100644
--- a/homeassistant/components/enocean/binary_sensor.py
+++ b/homeassistant/components/enocean/binary_sensor.py
@@ -12,7 +12,7 @@ import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['enocean']
 DEFAULT_NAME = 'EnOcean binary sensor'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/enocean/light.py b/homeassistant/components/enocean/light.py
index 5dfac6f98b0..f574f89f951 100644
--- a/homeassistant/components/enocean/light.py
+++ b/homeassistant/components/enocean/light.py
@@ -15,7 +15,7 @@ _LOGGER = logging.getLogger(__name__)
 CONF_SENDER_ID = 'sender_id'
 
 DEFAULT_NAME = 'EnOcean Light'
-
+DEPENDENCIES = ['enocean']
 
 SUPPORT_ENOCEAN = SUPPORT_BRIGHTNESS
 
diff --git a/homeassistant/components/enocean/sensor.py b/homeassistant/components/enocean/sensor.py
index 3b9b250f944..8d79de2c50d 100644
--- a/homeassistant/components/enocean/sensor.py
+++ b/homeassistant/components/enocean/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.components import enocean
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'EnOcean sensor'
-
+DEPENDENCIES = ['enocean']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_ID): vol.All(cv.ensure_list, [vol.Coerce(int)]),
diff --git a/homeassistant/components/enocean/switch.py b/homeassistant/components/enocean/switch.py
index a86bd6af220..4dfbafd36b1 100644
--- a/homeassistant/components/enocean/switch.py
+++ b/homeassistant/components/enocean/switch.py
@@ -12,7 +12,7 @@ import homeassistant.helpers.config_validation as cv
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'EnOcean Switch'
-
+DEPENDENCIES = ['enocean']
 CONF_CHANNEL = 'channel'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/enphase_envoy/sensor.py b/homeassistant/components/enphase_envoy/sensor.py
index 2c478fd4135..2b62732dc91 100644
--- a/homeassistant/components/enphase_envoy/sensor.py
+++ b/homeassistant/components/enphase_envoy/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
     CONF_IP_ADDRESS, CONF_MONITORED_CONDITIONS, POWER_WATT)
 
 
-
+REQUIREMENTS = ['envoy_reader==0.3']
 _LOGGER = logging.getLogger(__name__)
 
 SENSORS = {
diff --git a/homeassistant/components/entur_public_transport/sensor.py b/homeassistant/components/entur_public_transport/sensor.py
index 8386afd07cc..b2e22867690 100644
--- a/homeassistant/components/entur_public_transport/sensor.py
+++ b/homeassistant/components/entur_public_transport/sensor.py
@@ -14,7 +14,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['enturclient==0.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/envisalink/__init__.py b/homeassistant/components/envisalink/__init__.py
index 9bd1f971a46..c46a26c6f85 100644
--- a/homeassistant/components/envisalink/__init__.py
+++ b/homeassistant/components/envisalink/__init__.py
@@ -12,7 +12,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.discovery import async_load_platform
 from homeassistant.helpers.dispatcher import async_dispatcher_send
 
-
+REQUIREMENTS = ['pyenvisalink==3.8']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/envisalink/alarm_control_panel.py b/homeassistant/components/envisalink/alarm_control_panel.py
index 2d191f5958a..44874c6d5e8 100644
--- a/homeassistant/components/envisalink/alarm_control_panel.py
+++ b/homeassistant/components/envisalink/alarm_control_panel.py
@@ -18,7 +18,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['envisalink']
 
 SERVICE_ALARM_KEYPRESS = 'envisalink_alarm_keypress'
 ATTR_KEYPRESS = 'keypress'
diff --git a/homeassistant/components/envisalink/binary_sensor.py b/homeassistant/components/envisalink/binary_sensor.py
index fbd2b1093a5..267bba8cd28 100644
--- a/homeassistant/components/envisalink/binary_sensor.py
+++ b/homeassistant/components/envisalink/binary_sensor.py
@@ -14,7 +14,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['envisalink']
 
 
 async def async_setup_platform(hass, config, async_add_entities,
diff --git a/homeassistant/components/envisalink/sensor.py b/homeassistant/components/envisalink/sensor.py
index a1806d02ffc..67a601b02a2 100644
--- a/homeassistant/components/envisalink/sensor.py
+++ b/homeassistant/components/envisalink/sensor.py
@@ -11,7 +11,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['envisalink']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/ephember/climate.py b/homeassistant/components/ephember/climate.py
index f2a37460fa1..3052dd911ee 100644
--- a/homeassistant/components/ephember/climate.py
+++ b/homeassistant/components/ephember/climate.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
     ATTR_TEMPERATURE, TEMP_CELSIUS, CONF_USERNAME, CONF_PASSWORD, STATE_OFF)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pyephember==0.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/epson/media_player.py b/homeassistant/components/epson/media_player.py
index b25a4b8d1b9..57bd18e0ee0 100644
--- a/homeassistant/components/epson/media_player.py
+++ b/homeassistant/components/epson/media_player.py
@@ -15,7 +15,7 @@ from homeassistant.const import (
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['epson-projector==0.1.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/eq3btsmart/climate.py b/homeassistant/components/eq3btsmart/climate.py
index c081bdf4456..f02bd2bc9a5 100644
--- a/homeassistant/components/eq3btsmart/climate.py
+++ b/homeassistant/components/eq3btsmart/climate.py
@@ -13,7 +13,7 @@ from homeassistant.const import (
     TEMP_CELSIUS, PRECISION_HALVES)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['python-eq3bt==0.1.9', 'construct==2.9.45']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/esphome/__init__.py b/homeassistant/components/esphome/__init__.py
index 98fdd41a388..9e6f6367cda 100644
--- a/homeassistant/components/esphome/__init__.py
+++ b/homeassistant/components/esphome/__init__.py
@@ -32,7 +32,7 @@ if TYPE_CHECKING:
         ServiceCall, UserService
 
 DOMAIN = 'esphome'
-
+REQUIREMENTS = ['aioesphomeapi==2.0.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/esphome/binary_sensor.py b/homeassistant/components/esphome/binary_sensor.py
index 013ffb71ccb..2db2f209fa5 100644
--- a/homeassistant/components/esphome/binary_sensor.py
+++ b/homeassistant/components/esphome/binary_sensor.py
@@ -10,7 +10,7 @@ if TYPE_CHECKING:
     # pylint: disable=unused-import
     from aioesphomeapi import BinarySensorInfo, BinarySensorState  # noqa
 
-
+DEPENDENCIES = ['esphome']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/esphome/camera.py b/homeassistant/components/esphome/camera.py
index 5ea25f7615a..319a2c2a4d9 100644
--- a/homeassistant/components/esphome/camera.py
+++ b/homeassistant/components/esphome/camera.py
@@ -13,7 +13,7 @@ if TYPE_CHECKING:
     # pylint: disable=unused-import
     from aioesphomeapi import CameraInfo, CameraState  # noqa
 
-
+DEPENDENCIES = ['esphome']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/esphome/climate.py b/homeassistant/components/esphome/climate.py
index d25957c0154..e3cd9e488bf 100644
--- a/homeassistant/components/esphome/climate.py
+++ b/homeassistant/components/esphome/climate.py
@@ -19,7 +19,7 @@ if TYPE_CHECKING:
     # pylint: disable=unused-import
     from aioesphomeapi import ClimateInfo, ClimateState, ClimateMode  # noqa
 
-
+DEPENDENCIES = ['esphome']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/esphome/cover.py b/homeassistant/components/esphome/cover.py
index 7e3844ee42b..68eb4221a93 100644
--- a/homeassistant/components/esphome/cover.py
+++ b/homeassistant/components/esphome/cover.py
@@ -15,7 +15,7 @@ if TYPE_CHECKING:
     # pylint: disable=unused-import
     from aioesphomeapi import CoverInfo, CoverState  # noqa
 
-
+DEPENDENCIES = ['esphome']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/esphome/fan.py b/homeassistant/components/esphome/fan.py
index 64e40c656fc..973fa85774c 100644
--- a/homeassistant/components/esphome/fan.py
+++ b/homeassistant/components/esphome/fan.py
@@ -14,7 +14,7 @@ if TYPE_CHECKING:
     # pylint: disable=unused-import
     from aioesphomeapi import FanInfo, FanState, FanSpeed  # noqa
 
-
+DEPENDENCIES = ['esphome']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/esphome/light.py b/homeassistant/components/esphome/light.py
index 35ba121f27d..c84c50010d9 100644
--- a/homeassistant/components/esphome/light.py
+++ b/homeassistant/components/esphome/light.py
@@ -17,7 +17,7 @@ if TYPE_CHECKING:
     # pylint: disable=unused-import
     from aioesphomeapi import LightInfo, LightState  # noqa
 
-
+DEPENDENCIES = ['esphome']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/esphome/sensor.py b/homeassistant/components/esphome/sensor.py
index af54c52a29a..e4fb7ef82ba 100644
--- a/homeassistant/components/esphome/sensor.py
+++ b/homeassistant/components/esphome/sensor.py
@@ -13,7 +13,7 @@ if TYPE_CHECKING:
     from aioesphomeapi import ( # noqa
         SensorInfo, SensorState, TextSensorInfo, TextSensorState)
 
-
+DEPENDENCIES = ['esphome']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/esphome/switch.py b/homeassistant/components/esphome/switch.py
index 11ad0cde157..e736c1df209 100644
--- a/homeassistant/components/esphome/switch.py
+++ b/homeassistant/components/esphome/switch.py
@@ -12,7 +12,7 @@ if TYPE_CHECKING:
     # pylint: disable=unused-import
     from aioesphomeapi import SwitchInfo, SwitchState  # noqa
 
-
+DEPENDENCIES = ['esphome']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/etherscan/sensor.py b/homeassistant/components/etherscan/sensor.py
index a442314eb2d..082295bfea5 100644
--- a/homeassistant/components/etherscan/sensor.py
+++ b/homeassistant/components/etherscan/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['python-etherscan-api==0.0.3']
 
 ATTRIBUTION = "Data provided by etherscan.io"
 
diff --git a/homeassistant/components/eufy/__init__.py b/homeassistant/components/eufy/__init__.py
index d3843144463..b0bd9109363 100644
--- a/homeassistant/components/eufy/__init__.py
+++ b/homeassistant/components/eufy/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['lakeside==0.12']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/eufy/light.py b/homeassistant/components/eufy/light.py
index 5b596611cfd..62bc058f155 100644
--- a/homeassistant/components/eufy/light.py
+++ b/homeassistant/components/eufy/light.py
@@ -11,7 +11,7 @@ from homeassistant.util.color import (
     color_temperature_mired_to_kelvin as mired_to_kelvin,
     color_temperature_kelvin_to_mired as kelvin_to_mired)
 
-
+DEPENDENCIES = ['eufy']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/eufy/switch.py b/homeassistant/components/eufy/switch.py
index 722ceaeac5b..96d68194107 100644
--- a/homeassistant/components/eufy/switch.py
+++ b/homeassistant/components/eufy/switch.py
@@ -3,7 +3,7 @@ import logging
 
 from homeassistant.components.switch import SwitchDevice
 
-
+DEPENDENCIES = ['eufy']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/everlights/light.py b/homeassistant/components/everlights/light.py
index 9e411912600..a628f25ea28 100644
--- a/homeassistant/components/everlights/light.py
+++ b/homeassistant/components/everlights/light.py
@@ -15,7 +15,7 @@ import homeassistant.util.color as color_util
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.exceptions import PlatformNotReady
 
-
+REQUIREMENTS = ['pyeverlights==0.1.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/evohome/__init__.py b/homeassistant/components/evohome/__init__.py
index 74b16757452..87a563ecd6d 100644
--- a/homeassistant/components/evohome/__init__.py
+++ b/homeassistant/components/evohome/__init__.py
@@ -19,7 +19,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import load_platform
 from homeassistant.helpers.dispatcher import async_dispatcher_send
 
-
+REQUIREMENTS = ['evohomeclient==0.3.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/familyhub/camera.py b/homeassistant/components/familyhub/camera.py
index 1fdc5c6ff3a..18aa969132d 100644
--- a/homeassistant/components/familyhub/camera.py
+++ b/homeassistant/components/familyhub/camera.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['python-family-hub-local==0.0.2']
 
 DEFAULT_NAME = 'FamilyHub Camera'
 
diff --git a/homeassistant/components/fan/__init__.py b/homeassistant/components/fan/__init__.py
index e4d2c1eb504..e67ba390a98 100644
--- a/homeassistant/components/fan/__init__.py
+++ b/homeassistant/components/fan/__init__.py
@@ -18,7 +18,7 @@ import homeassistant.helpers.config_validation as cv
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'fan'
-
+DEPENDENCIES = ['group']
 SCAN_INTERVAL = timedelta(seconds=30)
 
 GROUP_NAME_ALL_FANS = 'all fans'
diff --git a/homeassistant/components/fastdotcom/__init__.py b/homeassistant/components/fastdotcom/__init__.py
index ec8c359963b..973cc8e3659 100644
--- a/homeassistant/components/fastdotcom/__init__.py
+++ b/homeassistant/components/fastdotcom/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.helpers.discovery import async_load_platform
 from homeassistant.helpers.dispatcher import dispatcher_send
 from homeassistant.helpers.event import async_track_time_interval
 
-
+REQUIREMENTS = ['fastdotcom==0.0.3']
 
 DOMAIN = 'fastdotcom'
 DATA_UPDATED = '{}_data_updated'.format(DOMAIN)
diff --git a/homeassistant/components/fastdotcom/sensor.py b/homeassistant/components/fastdotcom/sensor.py
index 54923cd7f09..37fc0815ddc 100644
--- a/homeassistant/components/fastdotcom/sensor.py
+++ b/homeassistant/components/fastdotcom/sensor.py
@@ -7,7 +7,7 @@ from homeassistant.helpers.restore_state import RestoreEntity
 
 from . import DATA_UPDATED, DOMAIN as FASTDOTCOM_DOMAIN
 
-
+DEPENDENCIES = ['fastdotcom']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fedex/sensor.py b/homeassistant/components/fedex/sensor.py
index 09f474be7ca..74ad4f7d0e5 100644
--- a/homeassistant/components/fedex/sensor.py
+++ b/homeassistant/components/fedex/sensor.py
@@ -14,7 +14,7 @@ from homeassistant.util import Throttle
 from homeassistant.util import slugify
 from homeassistant.util.dt import now, parse_date
 
-
+REQUIREMENTS = ['fedexdeliverymanager==1.0.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/feedreader/__init__.py b/homeassistant/components/feedreader/__init__.py
index 9396d88b2d5..86744bfd39c 100644
--- a/homeassistant/components/feedreader/__init__.py
+++ b/homeassistant/components/feedreader/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.const import EVENT_HOMEASSISTANT_START, CONF_SCAN_INTERVAL
 from homeassistant.helpers.event import track_time_interval
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['feedparser-homeassistant==5.2.2.dev1']
 
 _LOGGER = getLogger(__name__)
 
diff --git a/homeassistant/components/ffmpeg/__init__.py b/homeassistant/components/ffmpeg/__init__.py
index e657fcb7f17..05bc1d99167 100644
--- a/homeassistant/components/ffmpeg/__init__.py
+++ b/homeassistant/components/ffmpeg/__init__.py
@@ -12,7 +12,7 @@ from homeassistant.helpers.dispatcher import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['ha-ffmpeg==2.0']
 
 DOMAIN = 'ffmpeg'
 
diff --git a/homeassistant/components/ffmpeg/camera.py b/homeassistant/components/ffmpeg/camera.py
index f0aee43bd63..8bca13cfbb7 100644
--- a/homeassistant/components/ffmpeg/camera.py
+++ b/homeassistant/components/ffmpeg/camera.py
@@ -14,7 +14,7 @@ from . import CONF_EXTRA_ARGUMENTS, CONF_INPUT, DATA_FFMPEG
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['ffmpeg']
 
 DEFAULT_NAME = 'FFmpeg'
 DEFAULT_ARGUMENTS = "-pred 1"
diff --git a/homeassistant/components/ffmpeg_motion/binary_sensor.py b/homeassistant/components/ffmpeg_motion/binary_sensor.py
index 902d658042a..c274d84329e 100644
--- a/homeassistant/components/ffmpeg_motion/binary_sensor.py
+++ b/homeassistant/components/ffmpeg_motion/binary_sensor.py
@@ -12,7 +12,7 @@ from homeassistant.components.ffmpeg import (
     CONF_INITIAL_STATE)
 from homeassistant.const import CONF_NAME
 
-
+DEPENDENCIES = ['ffmpeg']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ffmpeg_noise/binary_sensor.py b/homeassistant/components/ffmpeg_noise/binary_sensor.py
index 46160fac509..7efcc3deda2 100644
--- a/homeassistant/components/ffmpeg_noise/binary_sensor.py
+++ b/homeassistant/components/ffmpeg_noise/binary_sensor.py
@@ -12,7 +12,7 @@ from homeassistant.components.ffmpeg import (
     CONF_INITIAL_STATE)
 from homeassistant.const import CONF_NAME
 
-
+DEPENDENCIES = ['ffmpeg']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fibaro/__init__.py b/homeassistant/components/fibaro/__init__.py
index a4f6dd4f471..6b37b178a59 100644
--- a/homeassistant/components/fibaro/__init__.py
+++ b/homeassistant/components/fibaro/__init__.py
@@ -13,7 +13,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import convert, slugify
 
-
+REQUIREMENTS = ['fiblary3==0.1.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fibaro/binary_sensor.py b/homeassistant/components/fibaro/binary_sensor.py
index c944098c605..f71a5f3662e 100644
--- a/homeassistant/components/fibaro/binary_sensor.py
+++ b/homeassistant/components/fibaro/binary_sensor.py
@@ -7,7 +7,7 @@ from homeassistant.const import CONF_DEVICE_CLASS, CONF_ICON
 
 from . import FIBARO_DEVICES, FibaroDevice
 
-
+DEPENDENCIES = ['fibaro']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fibaro/climate.py b/homeassistant/components/fibaro/climate.py
index 11f1b15d2ea..0d1ecc3a77f 100644
--- a/homeassistant/components/fibaro/climate.py
+++ b/homeassistant/components/fibaro/climate.py
@@ -44,7 +44,7 @@ FAN_LEFT_RIGHT = 'left_right'
 FAN_UP_DOWN = 'up_down'
 FAN_QUIET = 'quiet'
 
-
+DEPENDENCIES = ['fibaro']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fibaro/cover.py b/homeassistant/components/fibaro/cover.py
index 219fdcb4d84..0f5cc32bc96 100644
--- a/homeassistant/components/fibaro/cover.py
+++ b/homeassistant/components/fibaro/cover.py
@@ -6,7 +6,7 @@ from homeassistant.components.cover import (
 
 from . import FIBARO_DEVICES, FibaroDevice
 
-
+DEPENDENCIES = ['fibaro']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fibaro/light.py b/homeassistant/components/fibaro/light.py
index aa3c2fc87b5..600b566b36b 100644
--- a/homeassistant/components/fibaro/light.py
+++ b/homeassistant/components/fibaro/light.py
@@ -14,7 +14,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['fibaro']
 
 
 def scaleto255(value):
diff --git a/homeassistant/components/fibaro/scene.py b/homeassistant/components/fibaro/scene.py
index 3bdb68427b5..93f0cd5b63a 100644
--- a/homeassistant/components/fibaro/scene.py
+++ b/homeassistant/components/fibaro/scene.py
@@ -5,7 +5,7 @@ from homeassistant.components.scene import Scene
 
 from . import FIBARO_DEVICES, FibaroDevice
 
-
+DEPENDENCIES = ['fibaro']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fibaro/sensor.py b/homeassistant/components/fibaro/sensor.py
index 9761b361136..20a37fd3c23 100644
--- a/homeassistant/components/fibaro/sensor.py
+++ b/homeassistant/components/fibaro/sensor.py
@@ -22,7 +22,7 @@ SENSOR_TYPES = {
         ['Light', 'lx', None, DEVICE_CLASS_ILLUMINANCE]
 }
 
-
+DEPENDENCIES = ['fibaro']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/fibaro/switch.py b/homeassistant/components/fibaro/switch.py
index 6ab06f43122..024531f62c7 100644
--- a/homeassistant/components/fibaro/switch.py
+++ b/homeassistant/components/fibaro/switch.py
@@ -6,7 +6,7 @@ from homeassistant.util import convert
 
 from . import FIBARO_DEVICES, FibaroDevice
 
-
+DEPENDENCIES = ['fibaro']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/fido/sensor.py b/homeassistant/components/fido/sensor.py
index 9e016bcf4c5..00754c5ba68 100644
--- a/homeassistant/components/fido/sensor.py
+++ b/homeassistant/components/fido/sensor.py
@@ -20,7 +20,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pyfido==2.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fints/sensor.py b/homeassistant/components/fints/sensor.py
index fb0a89ff430..dce52785fbf 100644
--- a/homeassistant/components/fints/sensor.py
+++ b/homeassistant/components/fints/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.const import CONF_USERNAME, CONF_PIN, CONF_URL, CONF_NAME
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['fints==1.0.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fitbit/sensor.py b/homeassistant/components/fitbit/sensor.py
index 84888c48788..abbe69c3e1d 100644
--- a/homeassistant/components/fitbit/sensor.py
+++ b/homeassistant/components/fitbit/sensor.py
@@ -17,7 +17,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.util.json import load_json, save_json
 
 
-
+REQUIREMENTS = ['fitbit==0.3.0']
 
 _CONFIGURING = {}
 _LOGGER = logging.getLogger(__name__)
@@ -32,7 +32,7 @@ CONF_MONITORED_RESOURCES = 'monitored_resources'
 CONF_CLOCK_FORMAT = 'clock_format'
 ATTRIBUTION = 'Data provided by Fitbit.com'
 
-
+DEPENDENCIES = ['http']
 
 FITBIT_AUTH_CALLBACK_PATH = '/api/fitbit/callback'
 FITBIT_AUTH_START = '/api/fitbit'
diff --git a/homeassistant/components/fixer/sensor.py b/homeassistant/components/fixer/sensor.py
index 3b2ce5fc1f5..f746d2008e1 100644
--- a/homeassistant/components/fixer/sensor.py
+++ b/homeassistant/components/fixer/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.const import ATTR_ATTRIBUTION, CONF_API_KEY, CONF_NAME
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['fixerio==1.0.0a0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/flexit/climate.py b/homeassistant/components/flexit/climate.py
index 62cde4e35a4..fe7b5ff8e7c 100644
--- a/homeassistant/components/flexit/climate.py
+++ b/homeassistant/components/flexit/climate.py
@@ -25,8 +25,8 @@ from homeassistant.components.modbus import (
     CONF_HUB, DEFAULT_HUB, DOMAIN as MODBUS_DOMAIN)
 import homeassistant.helpers.config_validation as cv
 
-
-
+REQUIREMENTS = ['pyflexit==0.3']
+DEPENDENCIES = ['modbus']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_HUB, default=DEFAULT_HUB): cv.string,
diff --git a/homeassistant/components/flic/binary_sensor.py b/homeassistant/components/flic/binary_sensor.py
index 96acc3a8794..083ac01ab4a 100644
--- a/homeassistant/components/flic/binary_sensor.py
+++ b/homeassistant/components/flic/binary_sensor.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
 from homeassistant.components.binary_sensor import (
     BinarySensorDevice, PLATFORM_SCHEMA)
 
-
+REQUIREMENTS = ['pyflic-homeassistant==0.4.dev0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/flunearyou/sensor.py b/homeassistant/components/flunearyou/sensor.py
index 973bcb4cd9d..65de2c6ae43 100644
--- a/homeassistant/components/flunearyou/sensor.py
+++ b/homeassistant/components/flunearyou/sensor.py
@@ -13,7 +13,7 @@ from homeassistant.helpers import aiohttp_client
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['pyflunearyou==1.0.3']
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_CITY = 'city'
diff --git a/homeassistant/components/flux/switch.py b/homeassistant/components/flux/switch.py
index be0708989b8..fdd0c09b9d7 100644
--- a/homeassistant/components/flux/switch.py
+++ b/homeassistant/components/flux/switch.py
@@ -42,7 +42,7 @@ MODE_XY = 'xy'
 MODE_MIRED = 'mired'
 MODE_RGB = 'rgb'
 DEFAULT_MODE = MODE_XY
-
+DEPENDENCIES = ['light']
 
 
 PLATFORM_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/flux_led/light.py b/homeassistant/components/flux_led/light.py
index b7f92b104cb..0ed14c49ec8 100644
--- a/homeassistant/components/flux_led/light.py
+++ b/homeassistant/components/flux_led/light.py
@@ -15,7 +15,7 @@ from homeassistant.components.light import (
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 
-
+REQUIREMENTS = ['flux_led==0.22']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/folder_watcher/__init__.py b/homeassistant/components/folder_watcher/__init__.py
index 0dab42138b0..babfbd9e9aa 100644
--- a/homeassistant/components/folder_watcher/__init__.py
+++ b/homeassistant/components/folder_watcher/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['watchdog==0.8.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/foobot/sensor.py b/homeassistant/components/foobot/sensor.py
index 74ebefd4a07..2eeca5243a6 100644
--- a/homeassistant/components/foobot/sensor.py
+++ b/homeassistant/components/foobot/sensor.py
@@ -16,7 +16,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
 
-
+REQUIREMENTS = ['foobot_async==0.3.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/foscam/camera.py b/homeassistant/components/foscam/camera.py
index a090a88bfc9..6ce8f1865fc 100644
--- a/homeassistant/components/foscam/camera.py
+++ b/homeassistant/components/foscam/camera.py
@@ -11,7 +11,7 @@ from homeassistant.helpers import config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['libpyfoscam==1.0']
 
 CONF_IP = 'ip'
 CONF_RTSP_PORT = 'rtsp_port'
diff --git a/homeassistant/components/foursquare/__init__.py b/homeassistant/components/foursquare/__init__.py
index 86686b89d6f..0c5a48049ec 100644
--- a/homeassistant/components/foursquare/__init__.py
+++ b/homeassistant/components/foursquare/__init__.py
@@ -12,7 +12,7 @@ _LOGGER = logging.getLogger(__name__)
 
 CONF_PUSH_SECRET = 'push_secret'
 
-
+DEPENDENCIES = ['http']
 DOMAIN = 'foursquare'
 
 EVENT_CHECKIN = 'foursquare.checkin'
diff --git a/homeassistant/components/free_mobile/notify.py b/homeassistant/components/free_mobile/notify.py
index 665ee9d5e51..03beef52357 100644
--- a/homeassistant/components/free_mobile/notify.py
+++ b/homeassistant/components/free_mobile/notify.py
@@ -9,7 +9,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.components.notify import (PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-
+REQUIREMENTS = ['freesms==0.1.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/freebox/__init__.py b/homeassistant/components/freebox/__init__.py
index 703c067f98f..7accf7820f4 100644
--- a/homeassistant/components/freebox/__init__.py
+++ b/homeassistant/components/freebox/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.const import CONF_HOST, CONF_PORT, EVENT_HOMEASSISTANT_STOP
 from homeassistant.helpers import config_validation as cv, discovery
 from homeassistant.helpers.discovery import async_load_platform
 
-
+REQUIREMENTS = ['aiofreepybox==0.0.8']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/freebox/device_tracker.py b/homeassistant/components/freebox/device_tracker.py
index 4290920a01c..5418c1c61a7 100644
--- a/homeassistant/components/freebox/device_tracker.py
+++ b/homeassistant/components/freebox/device_tracker.py
@@ -6,7 +6,7 @@ from homeassistant.components.device_tracker import DeviceScanner
 
 from . import DATA_FREEBOX
 
-
+DEPENDENCIES = ['freebox']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/freebox/sensor.py b/homeassistant/components/freebox/sensor.py
index 7004e01dbef..328665ab51c 100644
--- a/homeassistant/components/freebox/sensor.py
+++ b/homeassistant/components/freebox/sensor.py
@@ -5,7 +5,7 @@ from homeassistant.helpers.entity import Entity
 
 from . import DATA_FREEBOX
 
-
+DEPENDENCIES = ['freebox']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/freebox/switch.py b/homeassistant/components/freebox/switch.py
index 7a6a14d8375..4de194fc902 100644
--- a/homeassistant/components/freebox/switch.py
+++ b/homeassistant/components/freebox/switch.py
@@ -5,7 +5,7 @@ from homeassistant.components.switch import SwitchDevice
 
 from . import DATA_FREEBOX
 
-
+DEPENDENCIES = ['freebox']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fritz/device_tracker.py b/homeassistant/components/fritz/device_tracker.py
index adb6a4ef122..3e3e04f4447 100644
--- a/homeassistant/components/fritz/device_tracker.py
+++ b/homeassistant/components/fritz/device_tracker.py
@@ -8,7 +8,7 @@ from homeassistant.components.device_tracker import (
     DOMAIN, PLATFORM_SCHEMA, DeviceScanner)
 from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_USERNAME
 
-
+REQUIREMENTS = ['fritzconnection==0.6.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fritzbox/__init__.py b/homeassistant/components/fritzbox/__init__.py
index 17d874c2f64..81ba019acbc 100644
--- a/homeassistant/components/fritzbox/__init__.py
+++ b/homeassistant/components/fritzbox/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.helpers import discovery
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['pyfritzhome==0.4.0']
 
 SUPPORTED_DOMAINS = ['binary_sensor', 'climate', 'switch', 'sensor']
 
diff --git a/homeassistant/components/fritzbox/binary_sensor.py b/homeassistant/components/fritzbox/binary_sensor.py
index d98704423b3..65578c57180 100644
--- a/homeassistant/components/fritzbox/binary_sensor.py
+++ b/homeassistant/components/fritzbox/binary_sensor.py
@@ -7,7 +7,7 @@ from homeassistant.components.binary_sensor import BinarySensorDevice
 
 from . import DOMAIN as FRITZBOX_DOMAIN
 
-
+DEPENDENCIES = ['fritzbox']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fritzbox/climate.py b/homeassistant/components/fritzbox/climate.py
index 4bb4816d0de..e2c9be833ac 100644
--- a/homeassistant/components/fritzbox/climate.py
+++ b/homeassistant/components/fritzbox/climate.py
@@ -16,7 +16,7 @@ from . import (
     ATTR_STATE_LOCKED, ATTR_STATE_SUMMER_MODE, ATTR_STATE_WINDOW_OPEN,
     DOMAIN as FRITZBOX_DOMAIN)
 
-
+DEPENDENCIES = ['fritzbox']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fritzbox/sensor.py b/homeassistant/components/fritzbox/sensor.py
index 0ad5a2f5309..7309f8cc618 100644
--- a/homeassistant/components/fritzbox/sensor.py
+++ b/homeassistant/components/fritzbox/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.helpers.entity import Entity
 from . import (
     ATTR_STATE_DEVICE_LOCKED, ATTR_STATE_LOCKED, DOMAIN as FRITZBOX_DOMAIN)
 
-
+DEPENDENCIES = ['fritzbox']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fritzbox/switch.py b/homeassistant/components/fritzbox/switch.py
index e164895881b..e227cdaef8a 100644
--- a/homeassistant/components/fritzbox/switch.py
+++ b/homeassistant/components/fritzbox/switch.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
 from . import (
     ATTR_STATE_DEVICE_LOCKED, ATTR_STATE_LOCKED, DOMAIN as FRITZBOX_DOMAIN)
 
-
+DEPENDENCIES = ['fritzbox']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fritzbox_callmonitor/sensor.py b/homeassistant/components/fritzbox_callmonitor/sensor.py
index c0bd88d8bbc..a6641bc14ad 100644
--- a/homeassistant/components/fritzbox_callmonitor/sensor.py
+++ b/homeassistant/components/fritzbox_callmonitor/sensor.py
@@ -16,7 +16,7 @@ from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['fritzconnection==0.6.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fritzbox_netmonitor/sensor.py b/homeassistant/components/fritzbox_netmonitor/sensor.py
index cd76fb05e39..93f834a894d 100644
--- a/homeassistant/components/fritzbox_netmonitor/sensor.py
+++ b/homeassistant/components/fritzbox_netmonitor/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['fritzconnection==0.6.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fritzdect/switch.py b/homeassistant/components/fritzdect/switch.py
index cc4bb753274..449ae5a76f1 100644
--- a/homeassistant/components/fritzdect/switch.py
+++ b/homeassistant/components/fritzdect/switch.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.const import TEMP_CELSIUS, ATTR_TEMPERATURE
 
-
+REQUIREMENTS = ['fritzhome==1.0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/frontend/__init__.py b/homeassistant/components/frontend/__init__.py
index d531f46654f..cfee41dc6ae 100644
--- a/homeassistant/components/frontend/__init__.py
+++ b/homeassistant/components/frontend/__init__.py
@@ -21,7 +21,7 @@ from homeassistant.loader import bind_hass
 
 from .storage import async_setup_frontend_storage
 
-
+REQUIREMENTS = ['home-assistant-frontend==20190410.0']
 
 DOMAIN = 'frontend'
 DEPENDENCIES = ['api', 'websocket_api', 'http', 'system_log',
diff --git a/homeassistant/components/frontier_silicon/media_player.py b/homeassistant/components/frontier_silicon/media_player.py
index 4eba49db47a..4f28d83e6cf 100644
--- a/homeassistant/components/frontier_silicon/media_player.py
+++ b/homeassistant/components/frontier_silicon/media_player.py
@@ -15,7 +15,7 @@ from homeassistant.const import (
     STATE_PLAYING, STATE_UNKNOWN)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['afsapi==0.0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/futurenow/light.py b/homeassistant/components/futurenow/light.py
index d2d5f04fd9f..4b570fd0a4d 100644
--- a/homeassistant/components/futurenow/light.py
+++ b/homeassistant/components/futurenow/light.py
@@ -11,7 +11,7 @@ from homeassistant.components.light import (
     PLATFORM_SCHEMA)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pyfnip==0.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/gc100/__init__.py b/homeassistant/components/gc100/__init__.py
index 061ae0fbc8c..36e9c61b1ba 100644
--- a/homeassistant/components/gc100/__init__.py
+++ b/homeassistant/components/gc100/__init__.py
@@ -7,7 +7,7 @@ from homeassistant.const import (
     EVENT_HOMEASSISTANT_STOP, CONF_HOST, CONF_PORT)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['python-gc100==1.0.3a']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/gc100/binary_sensor.py b/homeassistant/components/gc100/binary_sensor.py
index a0b583f7d21..9588506af77 100644
--- a/homeassistant/components/gc100/binary_sensor.py
+++ b/homeassistant/components/gc100/binary_sensor.py
@@ -8,7 +8,7 @@ import homeassistant.helpers.config_validation as cv
 
 from . import CONF_PORTS, DATA_GC100
 
-
+DEPENDENCIES = ['gc100']
 
 _SENSORS_SCHEMA = vol.Schema({
     cv.string: cv.string,
diff --git a/homeassistant/components/gc100/switch.py b/homeassistant/components/gc100/switch.py
index 77bf21b8594..1ffb2726495 100644
--- a/homeassistant/components/gc100/switch.py
+++ b/homeassistant/components/gc100/switch.py
@@ -8,7 +8,7 @@ from homeassistant.helpers.entity import ToggleEntity
 
 from . import CONF_PORTS, DATA_GC100
 
-
+DEPENDENCIES = ['gc100']
 
 _SWITCH_SCHEMA = vol.Schema({
     cv.string: cv.string,
diff --git a/homeassistant/components/gearbest/sensor.py b/homeassistant/components/gearbest/sensor.py
index 6fdfc6c3dbb..e4f85a1892d 100644
--- a/homeassistant/components/gearbest/sensor.py
+++ b/homeassistant/components/gearbest/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import track_time_interval
 from homeassistant.const import (CONF_NAME, CONF_ID, CONF_URL, CONF_CURRENCY)
 
-
+REQUIREMENTS = ['gearbest_parser==1.0.7']
 _LOGGER = logging.getLogger(__name__)
 
 CONF_ITEMS = 'items'
diff --git a/homeassistant/components/geizhals/sensor.py b/homeassistant/components/geizhals/sensor.py
index 68d7fa851b5..d619d768c23 100644
--- a/homeassistant/components/geizhals/sensor.py
+++ b/homeassistant/components/geizhals/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.util import Throttle
 from homeassistant.helpers.entity import Entity
 from homeassistant.const import CONF_NAME
 
-
+REQUIREMENTS = ['geizhals==0.0.9']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/generic_thermostat/climate.py b/homeassistant/components/generic_thermostat/climate.py
index 25d33f83071..35efa82c8a3 100644
--- a/homeassistant/components/generic_thermostat/climate.py
+++ b/homeassistant/components/generic_thermostat/climate.py
@@ -23,7 +23,7 @@ from homeassistant.components.climate.const import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['switch', 'sensor']
 
 DEFAULT_TOLERANCE = 0.3
 DEFAULT_NAME = 'Generic Thermostat'
diff --git a/homeassistant/components/geo_json_events/geo_location.py b/homeassistant/components/geo_json_events/geo_location.py
index 5f7a347cee1..e89616126d5 100644
--- a/homeassistant/components/geo_json_events/geo_location.py
+++ b/homeassistant/components/geo_json_events/geo_location.py
@@ -16,7 +16,7 @@ from homeassistant.helpers.dispatcher import (
     async_dispatcher_connect, dispatcher_send)
 from homeassistant.helpers.event import track_time_interval
 
-
+REQUIREMENTS = ['geojson_client==0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/geo_rss_events/sensor.py b/homeassistant/components/geo_rss_events/sensor.py
index c251b92506a..f71a60c2e83 100644
--- a/homeassistant/components/geo_rss_events/sensor.py
+++ b/homeassistant/components/geo_rss_events/sensor.py
@@ -20,7 +20,7 @@ from homeassistant.const import (
     CONF_LATITUDE, CONF_LONGITUDE, CONF_RADIUS, CONF_URL)
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['georss_generic_client==0.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/geofency/__init__.py b/homeassistant/components/geofency/__init__.py
index 61860855ea4..88b72f02cc2 100644
--- a/homeassistant/components/geofency/__init__.py
+++ b/homeassistant/components/geofency/__init__.py
@@ -16,7 +16,7 @@ from homeassistant.util import slugify
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'geofency'
-
+DEPENDENCIES = ['webhook']
 
 CONF_MOBILE_BEACONS = 'mobile_beacons'
 
diff --git a/homeassistant/components/geofency/device_tracker.py b/homeassistant/components/geofency/device_tracker.py
index b5caaecad42..0a1a9d5f32e 100644
--- a/homeassistant/components/geofency/device_tracker.py
+++ b/homeassistant/components/geofency/device_tracker.py
@@ -9,7 +9,7 @@ from . import DOMAIN as GEOFENCY_DOMAIN, TRACKER_UPDATE
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['geofency']
 
 DATA_KEY = '{}.{}'.format(GEOFENCY_DOMAIN, DEVICE_TRACKER_DOMAIN)
 
diff --git a/homeassistant/components/github/sensor.py b/homeassistant/components/github/sensor.py
index bd7f2228fae..5a86233d561 100644
--- a/homeassistant/components/github/sensor.py
+++ b/homeassistant/components/github/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['PyGithub==1.43.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/gitlab_ci/sensor.py b/homeassistant/components/gitlab_ci/sensor.py
index 3ea5e2a02ea..dd574b348d8 100644
--- a/homeassistant/components/gitlab_ci/sensor.py
+++ b/homeassistant/components/gitlab_ci/sensor.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['python-gitlab==1.6.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/gitter/sensor.py b/homeassistant/components/gitter/sensor.py
index 3fc37fe3cb6..2af9c20fb29 100644
--- a/homeassistant/components/gitter/sensor.py
+++ b/homeassistant/components/gitter/sensor.py
@@ -8,7 +8,7 @@ from homeassistant.const import CONF_API_KEY, CONF_NAME, CONF_ROOM
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['gitterpy==0.1.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/glances/sensor.py b/homeassistant/components/glances/sensor.py
index 0eacf400533..db8f0397887 100644
--- a/homeassistant/components/glances/sensor.py
+++ b/homeassistant/components/glances/sensor.py
@@ -14,7 +14,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['glances_api==0.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/gntp/notify.py b/homeassistant/components/gntp/notify.py
index e521ddbaa8a..fb3e96e83ab 100644
--- a/homeassistant/components/gntp/notify.py
+++ b/homeassistant/components/gntp/notify.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.components.notify import (
     ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 
-
+REQUIREMENTS = ['gntp==1.0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/goalfeed/__init__.py b/homeassistant/components/goalfeed/__init__.py
index 6e276785c5b..6f0149f657a 100644
--- a/homeassistant/components/goalfeed/__init__.py
+++ b/homeassistant/components/goalfeed/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
 
 # Version downgraded due to regression in library
 # For details: https://github.com/nlsdfnbch/Pysher/issues/38
-
+REQUIREMENTS = ['pysher==1.0.1']
 DOMAIN = 'goalfeed'
 
 CONFIG_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/gogogate2/cover.py b/homeassistant/components/gogogate2/cover.py
index fb45526af73..4d40ddd2c72 100644
--- a/homeassistant/components/gogogate2/cover.py
+++ b/homeassistant/components/gogogate2/cover.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
     CONF_IP_ADDRESS, CONF_NAME)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pygogogate2==0.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/google/tts.py b/homeassistant/components/google/tts.py
index d516ad9f43b..49a945cbbfd 100644
--- a/homeassistant/components/google/tts.py
+++ b/homeassistant/components/google/tts.py
@@ -12,7 +12,7 @@ import yarl
 from homeassistant.components.tts import CONF_LANG, PLATFORM_SCHEMA, Provider
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-
+REQUIREMENTS = ['gTTS-token==1.1.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/google_assistant/__init__.py b/homeassistant/components/google_assistant/__init__.py
index 1222d97a759..0fd167c2729 100644
--- a/homeassistant/components/google_assistant/__init__.py
+++ b/homeassistant/components/google_assistant/__init__.py
@@ -28,7 +28,7 @@ from .http import async_register_http
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['http']
 
 ENTITY_SCHEMA = vol.Schema({
     vol.Optional(CONF_NAME): cv.string,
diff --git a/homeassistant/components/google_maps/device_tracker.py b/homeassistant/components/google_maps/device_tracker.py
index 9ce40711fc3..7bc9be00b8c 100644
--- a/homeassistant/components/google_maps/device_tracker.py
+++ b/homeassistant/components/google_maps/device_tracker.py
@@ -14,7 +14,7 @@ from homeassistant.helpers.event import track_time_interval
 from homeassistant.helpers.typing import ConfigType
 from homeassistant.util import slugify, dt as dt_util
 
-
+REQUIREMENTS = ['locationsharinglib==3.0.11']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/google_pubsub/__init__.py b/homeassistant/components/google_pubsub/__init__.py
index 61c44d1e29e..18c068ea454 100644
--- a/homeassistant/components/google_pubsub/__init__.py
+++ b/homeassistant/components/google_pubsub/__init__.py
@@ -15,7 +15,7 @@ from homeassistant.helpers.entityfilter import FILTER_SCHEMA
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['google-cloud-pubsub==0.39.1']
 
 DOMAIN = 'google_pubsub'
 
diff --git a/homeassistant/components/google_travel_time/sensor.py b/homeassistant/components/google_travel_time/sensor.py
index 6f7971ef03d..b448830ab02 100644
--- a/homeassistant/components/google_travel_time/sensor.py
+++ b/homeassistant/components/google_travel_time/sensor.py
@@ -15,7 +15,7 @@ from homeassistant.helpers import location
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['googlemaps==2.5.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/googlehome/__init__.py b/homeassistant/components/googlehome/__init__.py
index f039cc0232a..6ebc2f512b1 100644
--- a/homeassistant/components/googlehome/__init__.py
+++ b/homeassistant/components/googlehome/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['googledevices==1.0.2']
 
 DOMAIN = 'googlehome'
 CLIENT = 'googlehome_client'
diff --git a/homeassistant/components/googlehome/device_tracker.py b/homeassistant/components/googlehome/device_tracker.py
index 19af4247254..c024cde0c6c 100644
--- a/homeassistant/components/googlehome/device_tracker.py
+++ b/homeassistant/components/googlehome/device_tracker.py
@@ -10,7 +10,7 @@ from . import CLIENT, DOMAIN as GOOGLEHOME_DOMAIN, NAME
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['googlehome']
 
 DEFAULT_SCAN_INTERVAL = timedelta(seconds=10)
 
diff --git a/homeassistant/components/googlehome/sensor.py b/homeassistant/components/googlehome/sensor.py
index 239fd11782a..4f37740da85 100644
--- a/homeassistant/components/googlehome/sensor.py
+++ b/homeassistant/components/googlehome/sensor.py
@@ -8,7 +8,7 @@ import homeassistant.util.dt as dt_util
 
 from . import CLIENT, DOMAIN as GOOGLEHOME_DOMAIN, NAME
 
-
+DEPENDENCIES = ['googlehome']
 
 SCAN_INTERVAL = timedelta(seconds=10)
 
diff --git a/homeassistant/components/gpmdp/media_player.py b/homeassistant/components/gpmdp/media_player.py
index 970e85a270d..788126b957f 100644
--- a/homeassistant/components/gpmdp/media_player.py
+++ b/homeassistant/components/gpmdp/media_player.py
@@ -16,7 +16,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util.json import load_json, save_json
 
-
+REQUIREMENTS = ['websocket-client==0.54.0']
 
 _CONFIGURING = {}
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/gpsd/sensor.py b/homeassistant/components/gpsd/sensor.py
index fd13bbe8e67..62307cb1011 100644
--- a/homeassistant/components/gpsd/sensor.py
+++ b/homeassistant/components/gpsd/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['gps3==0.33.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/gpslogger/__init__.py b/homeassistant/components/gpslogger/__init__.py
index 77e3990bad0..6bc9d11a68e 100644
--- a/homeassistant/components/gpslogger/__init__.py
+++ b/homeassistant/components/gpslogger/__init__.py
@@ -15,7 +15,7 @@ from homeassistant.components.device_tracker import DOMAIN as DEVICE_TRACKER
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'gpslogger'
-
+DEPENDENCIES = ['webhook']
 
 TRACKER_UPDATE = '{}_tracker_update'.format(DOMAIN)
 
diff --git a/homeassistant/components/gpslogger/device_tracker.py b/homeassistant/components/gpslogger/device_tracker.py
index 72ab2336656..c9496975272 100644
--- a/homeassistant/components/gpslogger/device_tracker.py
+++ b/homeassistant/components/gpslogger/device_tracker.py
@@ -10,7 +10,7 @@ from . import DOMAIN as GPSLOGGER_DOMAIN, TRACKER_UPDATE
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['gpslogger']
 
 DATA_KEY = '{}.{}'.format(GPSLOGGER_DOMAIN, DEVICE_TRACKER_DOMAIN)
 
diff --git a/homeassistant/components/greeneye_monitor/__init__.py b/homeassistant/components/greeneye_monitor/__init__.py
index 9d335fc0df9..aedc98aac31 100644
--- a/homeassistant/components/greeneye_monitor/__init__.py
+++ b/homeassistant/components/greeneye_monitor/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
 
-
+REQUIREMENTS = ['greeneye_monitor==1.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/greeneye_monitor/sensor.py b/homeassistant/components/greeneye_monitor/sensor.py
index 6ce6815e33b..8321bb768ca 100644
--- a/homeassistant/components/greeneye_monitor/sensor.py
+++ b/homeassistant/components/greeneye_monitor/sensor.py
@@ -23,7 +23,7 @@ from ..greeneye_monitor import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['greeneye_monitor']
 
 DATA_PULSES = 'pulses'
 DATA_WATT_SECONDS = 'watt_seconds'
diff --git a/homeassistant/components/greenwave/light.py b/homeassistant/components/greenwave/light.py
index 3e07f2613fd..b8efe8ae17d 100644
--- a/homeassistant/components/greenwave/light.py
+++ b/homeassistant/components/greenwave/light.py
@@ -10,7 +10,7 @@ from homeassistant.const import CONF_HOST
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['greenwavereality==0.5.1']
 _LOGGER = logging.getLogger(__name__)
 
 CONF_VERSION = 'version'
diff --git a/homeassistant/components/gstreamer/media_player.py b/homeassistant/components/gstreamer/media_player.py
index 903a50c908e..094a561d310 100644
--- a/homeassistant/components/gstreamer/media_player.py
+++ b/homeassistant/components/gstreamer/media_player.py
@@ -11,7 +11,7 @@ from homeassistant.components.media_player.const import (
 from homeassistant.const import CONF_NAME, EVENT_HOMEASSISTANT_STOP, STATE_IDLE
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['gstreamer-player==1.1.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/gtfs/sensor.py b/homeassistant/components/gtfs/sensor.py
index 85db95eb2d3..9e89a8ad844 100644
--- a/homeassistant/components/gtfs/sensor.py
+++ b/homeassistant/components/gtfs/sensor.py
@@ -17,7 +17,7 @@ from homeassistant.helpers.typing import ConfigType, HomeAssistantType
 from homeassistant.util import slugify
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['pygtfs==0.1.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/gtt/sensor.py b/homeassistant/components/gtt/sensor.py
index 9638e431e6d..659984fadea 100644
--- a/homeassistant/components/gtt/sensor.py
+++ b/homeassistant/components/gtt/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.const import DEVICE_CLASS_TIMESTAMP
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pygtt==1.1.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/habitica/__init__.py b/homeassistant/components/habitica/__init__.py
index 54600825073..23113a1388b 100644
--- a/homeassistant/components/habitica/__init__.py
+++ b/homeassistant/components/habitica/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
 from homeassistant.helpers import config_validation as cv, discovery
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-
+REQUIREMENTS = ['habitipy==0.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/hangouts/__init__.py b/homeassistant/components/hangouts/__init__.py
index 8bec2827b92..29cdc29e5ad 100644
--- a/homeassistant/components/hangouts/__init__.py
+++ b/homeassistant/components/hangouts/__init__.py
@@ -19,7 +19,7 @@ from .const import (
     MESSAGE_SCHEMA, SERVICE_RECONNECT, SERVICE_SEND_MESSAGE, SERVICE_UPDATE,
     TARGETS_SCHEMA)
 
-
+REQUIREMENTS = ['hangups==0.4.9']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/hangouts/notify.py b/homeassistant/components/hangouts/notify.py
index dbf884af85f..de9af2e0775 100644
--- a/homeassistant/components/hangouts/notify.py
+++ b/homeassistant/components/hangouts/notify.py
@@ -12,7 +12,7 @@ from .const import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = [DOMAIN]
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_DEFAULT_CONVERSATIONS): [TARGETS_SCHEMA]
diff --git a/homeassistant/components/harman_kardon_avr/media_player.py b/homeassistant/components/harman_kardon_avr/media_player.py
index 3917b043b02..cec0ac4f5c8 100644
--- a/homeassistant/components/harman_kardon_avr/media_player.py
+++ b/homeassistant/components/harman_kardon_avr/media_player.py
@@ -12,7 +12,7 @@ from homeassistant.components.media_player.const import (
 from homeassistant.const import (
     CONF_HOST, CONF_NAME, CONF_PORT, STATE_OFF, STATE_ON)
 
-
+REQUIREMENTS = ['hkavr==0.0.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/harmony/remote.py b/homeassistant/components/harmony/remote.py
index 6dbf325c76a..12b3a91e12b 100644
--- a/homeassistant/components/harmony/remote.py
+++ b/homeassistant/components/harmony/remote.py
@@ -16,7 +16,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.exceptions import PlatformNotReady
 from homeassistant.util import slugify
 
-
+REQUIREMENTS = ['aioharmony==0.1.11']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/hassio/__init__.py b/homeassistant/components/hassio/__init__.py
index 6529521c39d..e8d04b1596d 100644
--- a/homeassistant/components/hassio/__init__.py
+++ b/homeassistant/components/hassio/__init__.py
@@ -25,7 +25,7 @@ from .ingress import async_setup_ingress
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'hassio'
-
+DEPENDENCIES = ['http']
 STORAGE_KEY = DOMAIN
 STORAGE_VERSION = 1
 
diff --git a/homeassistant/components/hdmi_cec/__init__.py b/homeassistant/components/hdmi_cec/__init__.py
index 9166e080be4..8eb13c5ab21 100644
--- a/homeassistant/components/hdmi_cec/__init__.py
+++ b/homeassistant/components/hdmi_cec/__init__.py
@@ -17,7 +17,7 @@ from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['pyCEC==0.4.13']
 
 DOMAIN = 'hdmi_cec'
 
diff --git a/homeassistant/components/hdmi_cec/media_player.py b/homeassistant/components/hdmi_cec/media_player.py
index 772c722718f..b2d2910e145 100644
--- a/homeassistant/components/hdmi_cec/media_player.py
+++ b/homeassistant/components/hdmi_cec/media_player.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
 
 from . import ATTR_NEW, CecDevice
 
-
+DEPENDENCIES = ['hdmi_cec']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/hdmi_cec/switch.py b/homeassistant/components/hdmi_cec/switch.py
index 87df6d74300..639f545707e 100644
--- a/homeassistant/components/hdmi_cec/switch.py
+++ b/homeassistant/components/hdmi_cec/switch.py
@@ -6,7 +6,7 @@ from homeassistant.const import STATE_OFF, STATE_ON, STATE_STANDBY
 
 from . import ATTR_NEW, CecDevice
 
-
+DEPENDENCIES = ['hdmi_cec']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/heatmiser/climate.py b/homeassistant/components/heatmiser/climate.py
index db568a81cc5..fc9057bc905 100644
--- a/homeassistant/components/heatmiser/climate.py
+++ b/homeassistant/components/heatmiser/climate.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
     TEMP_CELSIUS, ATTR_TEMPERATURE, CONF_PORT, CONF_NAME, CONF_ID)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['heatmiserV3==0.9.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/heos/__init__.py b/homeassistant/components/heos/__init__.py
index c9d5a6883dd..084444be4ea 100644
--- a/homeassistant/components/heos/__init__.py
+++ b/homeassistant/components/heos/__init__.py
@@ -19,7 +19,7 @@ from .const import (
     COMMAND_RETRY_ATTEMPTS, COMMAND_RETRY_DELAY, DATA_CONTROLLER,
     DATA_SOURCE_MANAGER, DOMAIN, SIGNAL_HEOS_SOURCES_UPDATED)
 
-
+REQUIREMENTS = ['pyheos==0.3.1']
 
 CONFIG_SCHEMA = vol.Schema({
     DOMAIN: vol.Schema({
diff --git a/homeassistant/components/heos/media_player.py b/homeassistant/components/heos/media_player.py
index bc7b0831993..72d42f8f66f 100644
--- a/homeassistant/components/heos/media_player.py
+++ b/homeassistant/components/heos/media_player.py
@@ -17,7 +17,7 @@ from homeassistant.util.dt import utcnow
 from .const import (
     DATA_SOURCE_MANAGER, DOMAIN as HEOS_DOMAIN, SIGNAL_HEOS_SOURCES_UPDATED)
 
-
+DEPENDENCIES = ['heos']
 
 BASE_SUPPORTED_FEATURES = SUPPORT_VOLUME_MUTE | SUPPORT_VOLUME_SET | \
                           SUPPORT_VOLUME_STEP | SUPPORT_CLEAR_PLAYLIST | \
diff --git a/homeassistant/components/hikvision/binary_sensor.py b/homeassistant/components/hikvision/binary_sensor.py
index dbdc98b145c..a6a82c9ee1b 100644
--- a/homeassistant/components/hikvision/binary_sensor.py
+++ b/homeassistant/components/hikvision/binary_sensor.py
@@ -13,7 +13,7 @@ from homeassistant.const import (
     CONF_SSL, EVENT_HOMEASSISTANT_STOP, EVENT_HOMEASSISTANT_START,
     ATTR_LAST_TRIP_TIME, CONF_CUSTOMIZE)
 
-
+REQUIREMENTS = ['pyhik==0.2.2']
 _LOGGER = logging.getLogger(__name__)
 
 CONF_IGNORED = 'ignored'
diff --git a/homeassistant/components/hikvisioncam/switch.py b/homeassistant/components/hikvisioncam/switch.py
index 6920a4fbfe6..6e5dcdac9aa 100644
--- a/homeassistant/components/hikvisioncam/switch.py
+++ b/homeassistant/components/hikvisioncam/switch.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
 from homeassistant.helpers.entity import ToggleEntity
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['hikvision==0.4']
 # This is the last working version, please test before updating
 
 _LOGGING = logging.getLogger(__name__)
diff --git a/homeassistant/components/hipchat/notify.py b/homeassistant/components/hipchat/notify.py
index 925e205ace6..5128b8beea3 100644
--- a/homeassistant/components/hipchat/notify.py
+++ b/homeassistant/components/hipchat/notify.py
@@ -10,7 +10,7 @@ from homeassistant.components.notify import (ATTR_DATA, ATTR_TARGET,
                                              PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-
+REQUIREMENTS = ['hipnotify==1.0.8']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/history/__init__.py b/homeassistant/components/history/__init__.py
index cc44526cdbd..7b07fac19a6 100644
--- a/homeassistant/components/history/__init__.py
+++ b/homeassistant/components/history/__init__.py
@@ -19,7 +19,7 @@ import homeassistant.helpers.config_validation as cv
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'history'
-
+DEPENDENCIES = ['recorder', 'http']
 
 CONF_ORDER = 'use_include_order'
 
diff --git a/homeassistant/components/history_graph/__init__.py b/homeassistant/components/history_graph/__init__.py
index 4a20a4b9685..893f3514d77 100644
--- a/homeassistant/components/history_graph/__init__.py
+++ b/homeassistant/components/history_graph/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.const import CONF_ENTITIES, CONF_NAME, ATTR_ENTITY_ID
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.entity_component import EntityComponent
 
-
+DEPENDENCIES = ['history']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/history_stats/sensor.py b/homeassistant/components/history_stats/sensor.py
index 7ae29d94dea..f1eea4dd693 100644
--- a/homeassistant/components/history_stats/sensor.py
+++ b/homeassistant/components/history_stats/sensor.py
@@ -20,7 +20,7 @@ from homeassistant.helpers.event import async_track_state_change
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'history_stats'
-
+DEPENDENCIES = ['history']
 
 CONF_START = 'start'
 CONF_END = 'end'
diff --git a/homeassistant/components/hive/__init__.py b/homeassistant/components/hive/__init__.py
index 9931d03f23c..934c44028ac 100644
--- a/homeassistant/components/hive/__init__.py
+++ b/homeassistant/components/hive/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import load_platform
 
-
+REQUIREMENTS = ['pyhiveapi==0.2.17']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/hive/binary_sensor.py b/homeassistant/components/hive/binary_sensor.py
index ecbf56df592..a0973f4d8e9 100644
--- a/homeassistant/components/hive/binary_sensor.py
+++ b/homeassistant/components/hive/binary_sensor.py
@@ -3,7 +3,7 @@ from homeassistant.components.binary_sensor import BinarySensorDevice
 
 from . import DATA_HIVE, DOMAIN
 
-
+DEPENDENCIES = ['hive']
 
 DEVICETYPE_DEVICE_CLASS = {
     'motionsensor': 'motion',
diff --git a/homeassistant/components/hive/climate.py b/homeassistant/components/hive/climate.py
index 3dfb3364661..dac7feb2927 100644
--- a/homeassistant/components/hive/climate.py
+++ b/homeassistant/components/hive/climate.py
@@ -8,7 +8,7 @@ from homeassistant.const import (
 
 from . import DATA_HIVE, DOMAIN
 
-
+DEPENDENCIES = ['hive']
 
 HIVE_TO_HASS_STATE = {
     'SCHEDULE': STATE_AUTO,
diff --git a/homeassistant/components/hive/light.py b/homeassistant/components/hive/light.py
index 80734adcc4b..3a2176c3eed 100644
--- a/homeassistant/components/hive/light.py
+++ b/homeassistant/components/hive/light.py
@@ -6,7 +6,7 @@ import homeassistant.util.color as color_util
 
 from . import DATA_HIVE, DOMAIN
 
-
+DEPENDENCIES = ['hive']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/hive/sensor.py b/homeassistant/components/hive/sensor.py
index 25df56dbfa4..e7b7d6b4597 100644
--- a/homeassistant/components/hive/sensor.py
+++ b/homeassistant/components/hive/sensor.py
@@ -4,7 +4,7 @@ from homeassistant.helpers.entity import Entity
 
 from . import DATA_HIVE, DOMAIN
 
-
+DEPENDENCIES = ['hive']
 
 FRIENDLY_NAMES = {
     'Hub_OnlineStatus': 'Hive Hub Status',
diff --git a/homeassistant/components/hive/switch.py b/homeassistant/components/hive/switch.py
index 01638080df0..fd4d3d69b50 100644
--- a/homeassistant/components/hive/switch.py
+++ b/homeassistant/components/hive/switch.py
@@ -3,7 +3,7 @@ from homeassistant.components.switch import SwitchDevice
 
 from . import DATA_HIVE, DOMAIN
 
-
+DEPENDENCIES = ['hive']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/hlk_sw16/__init__.py b/homeassistant/components/hlk_sw16/__init__.py
index 5ba6c0d3e9f..acb604bc010 100644
--- a/homeassistant/components/hlk_sw16/__init__.py
+++ b/homeassistant/components/hlk_sw16/__init__.py
@@ -13,7 +13,7 @@ from homeassistant.helpers.discovery import async_load_platform
 from homeassistant.helpers.dispatcher import (
     async_dispatcher_send, async_dispatcher_connect)
 
-
+REQUIREMENTS = ['hlk-sw16==0.0.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/hlk_sw16/switch.py b/homeassistant/components/hlk_sw16/switch.py
index 0be8678755e..164a504fa34 100644
--- a/homeassistant/components/hlk_sw16/switch.py
+++ b/homeassistant/components/hlk_sw16/switch.py
@@ -6,7 +6,7 @@ from homeassistant.const import CONF_NAME
 
 from . import DATA_DEVICE_REGISTER, DOMAIN as HLK_SW16, SW16Device
 
-
+DEPENDENCIES = [HLK_SW16]
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homekit/__init__.py b/homeassistant/components/homekit/__init__.py
index f575b6d7f41..01979f03b9a 100644
--- a/homeassistant/components/homekit/__init__.py
+++ b/homeassistant/components/homekit/__init__.py
@@ -26,7 +26,7 @@ from .const import (
 from .util import (
     show_setup_message, validate_entity_config, validate_media_player_features)
 
-
+REQUIREMENTS = ['HAP-python==2.4.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homekit_controller/__init__.py b/homeassistant/components/homekit_controller/__init__.py
index cc7535da85f..2a43d0ac9ce 100644
--- a/homeassistant/components/homekit_controller/__init__.py
+++ b/homeassistant/components/homekit_controller/__init__.py
@@ -12,7 +12,7 @@ from .const import (
 )
 from .const import DOMAIN   # noqa: pylint: disable=unused-import
 
-
+REQUIREMENTS = ['homekit[IP]==0.13.0']
 
 HOMEKIT_IGNORE = [
     'BSB002',
diff --git a/homeassistant/components/homekit_controller/alarm_control_panel.py b/homeassistant/components/homekit_controller/alarm_control_panel.py
index bf3a875e7d3..f9bc25f4237 100644
--- a/homeassistant/components/homekit_controller/alarm_control_panel.py
+++ b/homeassistant/components/homekit_controller/alarm_control_panel.py
@@ -8,7 +8,7 @@ from homeassistant.const import (
 
 from . import KNOWN_DEVICES, HomeKitEntity
 
-
+DEPENDENCIES = ['homekit_controller']
 
 ICON = 'mdi:security'
 
diff --git a/homeassistant/components/homekit_controller/binary_sensor.py b/homeassistant/components/homekit_controller/binary_sensor.py
index 81af48f902e..2bd03b18932 100644
--- a/homeassistant/components/homekit_controller/binary_sensor.py
+++ b/homeassistant/components/homekit_controller/binary_sensor.py
@@ -5,7 +5,7 @@ from homeassistant.components.binary_sensor import BinarySensorDevice
 
 from . import KNOWN_DEVICES, HomeKitEntity
 
-
+DEPENDENCIES = ['homekit_controller']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homekit_controller/climate.py b/homeassistant/components/homekit_controller/climate.py
index c895d31874b..67f1fb72bcf 100644
--- a/homeassistant/components/homekit_controller/climate.py
+++ b/homeassistant/components/homekit_controller/climate.py
@@ -9,7 +9,7 @@ from homeassistant.const import ATTR_TEMPERATURE, STATE_OFF, TEMP_CELSIUS
 
 from . import KNOWN_DEVICES, HomeKitEntity
 
-
+DEPENDENCIES = ['homekit_controller']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homekit_controller/cover.py b/homeassistant/components/homekit_controller/cover.py
index a07a94e6cbb..26b7613ed2b 100644
--- a/homeassistant/components/homekit_controller/cover.py
+++ b/homeassistant/components/homekit_controller/cover.py
@@ -12,7 +12,7 @@ from . import KNOWN_DEVICES, HomeKitEntity
 
 STATE_STOPPED = 'stopped'
 
-
+DEPENDENCIES = ['homekit_controller']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homekit_controller/light.py b/homeassistant/components/homekit_controller/light.py
index 820299438b9..cb9259df4a9 100644
--- a/homeassistant/components/homekit_controller/light.py
+++ b/homeassistant/components/homekit_controller/light.py
@@ -7,7 +7,7 @@ from homeassistant.components.light import (
 
 from . import KNOWN_DEVICES, HomeKitEntity
 
-
+DEPENDENCIES = ['homekit_controller']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homekit_controller/lock.py b/homeassistant/components/homekit_controller/lock.py
index 9716e3d4584..0d0275fda16 100644
--- a/homeassistant/components/homekit_controller/lock.py
+++ b/homeassistant/components/homekit_controller/lock.py
@@ -7,7 +7,7 @@ from homeassistant.const import (
 
 from . import KNOWN_DEVICES, HomeKitEntity
 
-
+DEPENDENCIES = ['homekit_controller']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homekit_controller/sensor.py b/homeassistant/components/homekit_controller/sensor.py
index 7a7c9e73070..8cbc8f248ba 100644
--- a/homeassistant/components/homekit_controller/sensor.py
+++ b/homeassistant/components/homekit_controller/sensor.py
@@ -3,7 +3,7 @@ from homeassistant.const import TEMP_CELSIUS
 
 from . import KNOWN_DEVICES, HomeKitEntity
 
-
+DEPENDENCIES = ['homekit_controller']
 
 HUMIDITY_ICON = 'mdi-water-percent'
 TEMP_C_ICON = "mdi-temperature-celsius"
diff --git a/homeassistant/components/homekit_controller/switch.py b/homeassistant/components/homekit_controller/switch.py
index 22cb9abd55e..34e83c06526 100644
--- a/homeassistant/components/homekit_controller/switch.py
+++ b/homeassistant/components/homekit_controller/switch.py
@@ -5,7 +5,7 @@ from homeassistant.components.switch import SwitchDevice
 
 from . import KNOWN_DEVICES, HomeKitEntity
 
-
+DEPENDENCIES = ['homekit_controller']
 
 OUTLET_IN_USE = "outlet_in_use"
 
diff --git a/homeassistant/components/homematic/__init__.py b/homeassistant/components/homematic/__init__.py
index 78ff2b1051e..a8109af5ed8 100644
--- a/homeassistant/components/homematic/__init__.py
+++ b/homeassistant/components/homematic/__init__.py
@@ -14,7 +14,7 @@ from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['pyhomematic==0.1.58']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homematic/binary_sensor.py b/homeassistant/components/homematic/binary_sensor.py
index 5aee2b112cf..7bf260a9bdc 100644
--- a/homeassistant/components/homematic/binary_sensor.py
+++ b/homeassistant/components/homematic/binary_sensor.py
@@ -8,7 +8,7 @@ from . import ATTR_DISCOVER_DEVICES, HMDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['homematic']
 
 SENSOR_TYPES_CLASS = {
     'IPShutterContact': 'opening',
diff --git a/homeassistant/components/homematic/climate.py b/homeassistant/components/homematic/climate.py
index 202c4b9d2f3..146cad1bc4c 100644
--- a/homeassistant/components/homematic/climate.py
+++ b/homeassistant/components/homematic/climate.py
@@ -9,7 +9,7 @@ from homeassistant.const import ATTR_TEMPERATURE, TEMP_CELSIUS
 
 from . import ATTR_DISCOVER_DEVICES, HM_ATTRIBUTE_SUPPORT, HMDevice
 
-
+DEPENDENCIES = ['homematic']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homematic/cover.py b/homeassistant/components/homematic/cover.py
index 4f617a08241..33b764dc31f 100644
--- a/homeassistant/components/homematic/cover.py
+++ b/homeassistant/components/homematic/cover.py
@@ -9,7 +9,7 @@ from . import ATTR_DISCOVER_DEVICES, HMDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['homematic']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/homematic/light.py b/homeassistant/components/homematic/light.py
index 6592959c270..c3601461173 100644
--- a/homeassistant/components/homematic/light.py
+++ b/homeassistant/components/homematic/light.py
@@ -9,7 +9,7 @@ from . import ATTR_DISCOVER_DEVICES, HMDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['homematic']
 
 SUPPORT_HOMEMATIC = SUPPORT_BRIGHTNESS
 
diff --git a/homeassistant/components/homematic/lock.py b/homeassistant/components/homematic/lock.py
index de2dfbab31c..3c0ca040c5f 100644
--- a/homeassistant/components/homematic/lock.py
+++ b/homeassistant/components/homematic/lock.py
@@ -8,7 +8,7 @@ from . import ATTR_DISCOVER_DEVICES, HMDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['homematic']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/homematic/notify.py b/homeassistant/components/homematic/notify.py
index 894e2c799b8..9054c1fa0ad 100644
--- a/homeassistant/components/homematic/notify.py
+++ b/homeassistant/components/homematic/notify.py
@@ -13,7 +13,7 @@ from . import (
     SERVICE_SET_DEVICE_VALUE)
 
 _LOGGER = logging.getLogger(__name__)
-
+DEPENDENCIES = ["homematic"]
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(ATTR_ADDRESS): vol.All(cv.string, vol.Upper),
diff --git a/homeassistant/components/homematic/sensor.py b/homeassistant/components/homematic/sensor.py
index a8ab6c84934..401d11f70c8 100644
--- a/homeassistant/components/homematic/sensor.py
+++ b/homeassistant/components/homematic/sensor.py
@@ -7,7 +7,7 @@ from . import ATTR_DISCOVER_DEVICES, HMDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['homematic']
 
 HM_STATE_HA_CAST = {
     'RotaryHandleSensor': {0: 'closed', 1: 'tilted', 2: 'open'},
diff --git a/homeassistant/components/homematic/switch.py b/homeassistant/components/homematic/switch.py
index 44d8599ae39..393ad09b310 100644
--- a/homeassistant/components/homematic/switch.py
+++ b/homeassistant/components/homematic/switch.py
@@ -8,7 +8,7 @@ from . import ATTR_DISCOVER_DEVICES, HMDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['homematic']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/homematicip_cloud/__init__.py b/homeassistant/components/homematicip_cloud/__init__.py
index b257cbfc412..1330a2750ae 100644
--- a/homeassistant/components/homematicip_cloud/__init__.py
+++ b/homeassistant/components/homematicip_cloud/__init__.py
@@ -15,7 +15,7 @@ from .const import (
 from .device import HomematicipGenericDevice  # noqa: F401
 from .hap import HomematicipAuth, HomematicipHAP  # noqa: F401
 
-
+REQUIREMENTS = ['homematicip==0.10.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homematicip_cloud/alarm_control_panel.py b/homeassistant/components/homematicip_cloud/alarm_control_panel.py
index 6c190455be7..df0201340ed 100644
--- a/homeassistant/components/homematicip_cloud/alarm_control_panel.py
+++ b/homeassistant/components/homematicip_cloud/alarm_control_panel.py
@@ -10,7 +10,7 @@ from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['homematicip_cloud']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/homematicip_cloud/binary_sensor.py b/homeassistant/components/homematicip_cloud/binary_sensor.py
index d461781c721..44c17282dda 100644
--- a/homeassistant/components/homematicip_cloud/binary_sensor.py
+++ b/homeassistant/components/homematicip_cloud/binary_sensor.py
@@ -6,7 +6,7 @@ from homeassistant.components.binary_sensor import BinarySensorDevice
 from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
 from .device import ATTR_GROUP_MEMBER_UNREACHABLE
 
-
+DEPENDENCIES = ['homematicip_cloud']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homematicip_cloud/cover.py b/homeassistant/components/homematicip_cloud/cover.py
index 2faf8163166..735e8789670 100644
--- a/homeassistant/components/homematicip_cloud/cover.py
+++ b/homeassistant/components/homematicip_cloud/cover.py
@@ -5,7 +5,7 @@ from homeassistant.components.cover import ATTR_POSITION, CoverDevice
 
 from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
 
-
+DEPENDENCIES = ['homematicip_cloud']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homematicip_cloud/light.py b/homeassistant/components/homematicip_cloud/light.py
index f71ad07cbfe..f5bac66388c 100644
--- a/homeassistant/components/homematicip_cloud/light.py
+++ b/homeassistant/components/homematicip_cloud/light.py
@@ -7,7 +7,7 @@ from homeassistant.components.light import (
 
 from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
 
-
+DEPENDENCIES = ['homematicip_cloud']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homematicip_cloud/sensor.py b/homeassistant/components/homematicip_cloud/sensor.py
index 6c9136813ab..5f345f419fa 100644
--- a/homeassistant/components/homematicip_cloud/sensor.py
+++ b/homeassistant/components/homematicip_cloud/sensor.py
@@ -9,7 +9,7 @@ from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['homematicip_cloud']
 
 ATTR_TEMPERATURE_OFFSET = 'temperature_offset'
 ATTR_WIND_DIRECTION = 'wind_direction'
diff --git a/homeassistant/components/homematicip_cloud/switch.py b/homeassistant/components/homematicip_cloud/switch.py
index 23956a7097d..f9713cd8c00 100644
--- a/homeassistant/components/homematicip_cloud/switch.py
+++ b/homeassistant/components/homematicip_cloud/switch.py
@@ -6,7 +6,7 @@ from homeassistant.components.switch import SwitchDevice
 from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
 from .device import ATTR_GROUP_MEMBER_UNREACHABLE
 
-
+DEPENDENCIES = ['homematicip_cloud']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homematicip_cloud/weather.py b/homeassistant/components/homematicip_cloud/weather.py
index ef5aebd2320..ba3157471f9 100644
--- a/homeassistant/components/homematicip_cloud/weather.py
+++ b/homeassistant/components/homematicip_cloud/weather.py
@@ -7,7 +7,7 @@ from homeassistant.const import TEMP_CELSIUS
 
 from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
 
-
+DEPENDENCIES = ['homematicip_cloud']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homeworks/__init__.py b/homeassistant/components/homeworks/__init__.py
index 752d8908078..d0769ed25e6 100644
--- a/homeassistant/components/homeworks/__init__.py
+++ b/homeassistant/components/homeworks/__init__.py
@@ -12,7 +12,7 @@ from homeassistant.helpers.dispatcher import (
     async_dispatcher_connect, dispatcher_send)
 from homeassistant.util import slugify
 
-
+REQUIREMENTS = ['pyhomeworks==0.0.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homeworks/light.py b/homeassistant/components/homeworks/light.py
index 0e9e02a6cb1..ca41dff9834 100644
--- a/homeassistant/components/homeworks/light.py
+++ b/homeassistant/components/homeworks/light.py
@@ -11,7 +11,7 @@ from . import (
     CONF_ADDR, CONF_DIMMERS, CONF_RATE, ENTITY_SIGNAL, HOMEWORKS_CONTROLLER,
     HomeworksDevice)
 
-
+DEPENDENCIES = ['homeworks']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/honeywell/climate.py b/homeassistant/components/honeywell/climate.py
index f8b44d400b5..7460ed6e9d0 100644
--- a/homeassistant/components/honeywell/climate.py
+++ b/homeassistant/components/honeywell/climate.py
@@ -15,7 +15,7 @@ from homeassistant.const import (
     CONF_PASSWORD, CONF_USERNAME, TEMP_CELSIUS, TEMP_FAHRENHEIT,
     ATTR_TEMPERATURE, CONF_REGION)
 
-
+REQUIREMENTS = ['evohomeclient==0.3.2', 'somecomfort==0.5.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/horizon/media_player.py b/homeassistant/components/horizon/media_player.py
index 7813aac785f..51168e4ef2e 100644
--- a/homeassistant/components/horizon/media_player.py
+++ b/homeassistant/components/horizon/media_player.py
@@ -16,7 +16,7 @@ from homeassistant.const import (
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['horimote==0.4.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/hp_ilo/sensor.py b/homeassistant/components/hp_ilo/sensor.py
index e2157b6b07f..a017f0ee3e8 100644
--- a/homeassistant/components/hp_ilo/sensor.py
+++ b/homeassistant/components/hp_ilo/sensor.py
@@ -13,7 +13,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['python-hpilo==3.9']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/html5/notify.py b/homeassistant/components/html5/notify.py
index 7a4ce9ad723..fa7bf660b79 100644
--- a/homeassistant/components/html5/notify.py
+++ b/homeassistant/components/html5/notify.py
@@ -24,9 +24,9 @@ from homeassistant.components.notify import (
     ATTR_DATA, ATTR_TARGET, ATTR_TITLE, ATTR_TITLE_DEFAULT, DOMAIN,
     PLATFORM_SCHEMA, BaseNotificationService)
 
+REQUIREMENTS = ['pywebpush==1.9.2']
 
-
-
+DEPENDENCIES = ['frontend']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/http/__init__.py b/homeassistant/components/http/__init__.py
index 710c309b321..0bcf3f85ff7 100644
--- a/homeassistant/components/http/__init__.py
+++ b/homeassistant/components/http/__init__.py
@@ -29,7 +29,7 @@ from .real_ip import setup_real_ip
 from .static import CACHE_HEADERS, CachingStaticResource
 from .view import HomeAssistantView  # noqa
 
-
+REQUIREMENTS = ['aiohttp_cors==0.7.0']
 
 DOMAIN = 'http'
 
diff --git a/homeassistant/components/huawei_lte/__init__.py b/homeassistant/components/huawei_lte/__init__.py
index af4d78b35cc..a462b1b3072 100644
--- a/homeassistant/components/huawei_lte/__init__.py
+++ b/homeassistant/components/huawei_lte/__init__.py
@@ -19,7 +19,7 @@ _LOGGER = logging.getLogger(__name__)
 # https://github.com/quandyfactory/dicttoxml/issues/60
 logging.getLogger('dicttoxml').setLevel(logging.WARNING)
 
-
+REQUIREMENTS = ['huawei-lte-api==1.1.5']
 
 MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=10)
 
diff --git a/homeassistant/components/huawei_lte/device_tracker.py b/homeassistant/components/huawei_lte/device_tracker.py
index 5f14f7059b1..69bf42fb3fe 100644
--- a/homeassistant/components/huawei_lte/device_tracker.py
+++ b/homeassistant/components/huawei_lte/device_tracker.py
@@ -11,7 +11,7 @@ from homeassistant.components.device_tracker import (
 from homeassistant.const import CONF_URL
 from ..huawei_lte import DATA_KEY, RouterData
 
-
+DEPENDENCIES = ['huawei_lte']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_URL): cv.url,
diff --git a/homeassistant/components/huawei_lte/notify.py b/homeassistant/components/huawei_lte/notify.py
index ca13bc9e6e0..5e20a774c25 100644
--- a/homeassistant/components/huawei_lte/notify.py
+++ b/homeassistant/components/huawei_lte/notify.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 
 from ..huawei_lte import DATA_KEY
 
-
+DEPENDENCIES = ['huawei_lte']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/huawei_lte/sensor.py b/homeassistant/components/huawei_lte/sensor.py
index ba58348299b..42ad4b52f8d 100644
--- a/homeassistant/components/huawei_lte/sensor.py
+++ b/homeassistant/components/huawei_lte/sensor.py
@@ -16,7 +16,7 @@ from ..huawei_lte import DATA_KEY, RouterData
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['huawei_lte']
 
 DEFAULT_NAME_TEMPLATE = 'Huawei {} {}'
 
diff --git a/homeassistant/components/hue/__init__.py b/homeassistant/components/hue/__init__.py
index ab5b5a9ef8c..8f5c27f6516 100644
--- a/homeassistant/components/hue/__init__.py
+++ b/homeassistant/components/hue/__init__.py
@@ -14,7 +14,7 @@ from .bridge import HueBridge
 # Loading the config flow file will register the flow
 from .config_flow import configured_hosts
 
-
+REQUIREMENTS = ['aiohue==1.9.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/hue/light.py b/homeassistant/components/hue/light.py
index 038901be181..0725c86bd95 100644
--- a/homeassistant/components/hue/light.py
+++ b/homeassistant/components/hue/light.py
@@ -16,7 +16,7 @@ from homeassistant.components.light import (
     Light)
 from homeassistant.util import color
 
-
+DEPENDENCIES = ['hue']
 SCAN_INTERVAL = timedelta(seconds=5)
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/hunterdouglas_powerview/scene.py b/homeassistant/components/hunterdouglas_powerview/scene.py
index e1ee269383a..7f0709aa6c1 100644
--- a/homeassistant/components/hunterdouglas_powerview/scene.py
+++ b/homeassistant/components/hunterdouglas_powerview/scene.py
@@ -10,7 +10,7 @@ from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.helpers.entity import async_generate_entity_id
 
 _LOGGER = logging.getLogger(__name__)
-
+REQUIREMENTS = ['aiopvapi==1.6.14']
 
 ENTITY_ID_FORMAT = DOMAIN + '.{}'
 HUB_ADDRESS = 'address'
diff --git a/homeassistant/components/hydrawise/__init__.py b/homeassistant/components/hydrawise/__init__.py
index 8320dc6a462..9c7baf6db2e 100644
--- a/homeassistant/components/hydrawise/__init__.py
+++ b/homeassistant/components/hydrawise/__init__.py
@@ -14,7 +14,7 @@ from homeassistant.helpers.dispatcher import (
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import track_time_interval
 
-
+REQUIREMENTS = ['hydrawiser==0.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/hydrawise/binary_sensor.py b/homeassistant/components/hydrawise/binary_sensor.py
index 3aedcac16c1..85a51d3649e 100644
--- a/homeassistant/components/hydrawise/binary_sensor.py
+++ b/homeassistant/components/hydrawise/binary_sensor.py
@@ -12,7 +12,7 @@ from . import (
     BINARY_SENSORS, DATA_HYDRAWISE, DEVICE_MAP, DEVICE_MAP_INDEX,
     HydrawiseEntity)
 
-
+DEPENDENCIES = ['hydrawise']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/hydrawise/sensor.py b/homeassistant/components/hydrawise/sensor.py
index 60cac1047b9..fc15a54ed60 100644
--- a/homeassistant/components/hydrawise/sensor.py
+++ b/homeassistant/components/hydrawise/sensor.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 from . import (
     DATA_HYDRAWISE, DEVICE_MAP, DEVICE_MAP_INDEX, SENSORS, HydrawiseEntity)
 
-
+DEPENDENCIES = ['hydrawise']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/hydrawise/switch.py b/homeassistant/components/hydrawise/switch.py
index e51c719e7f1..dcbd5274a62 100644
--- a/homeassistant/components/hydrawise/switch.py
+++ b/homeassistant/components/hydrawise/switch.py
@@ -12,7 +12,7 @@ from . import (
     DEFAULT_WATERING_TIME, DEVICE_MAP, DEVICE_MAP_INDEX, SWITCHES,
     HydrawiseEntity)
 
-
+DEPENDENCIES = ['hydrawise']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/hydroquebec/sensor.py b/homeassistant/components/hydroquebec/sensor.py
index 843fc2a96b3..5f0fd9e01ad 100644
--- a/homeassistant/components/hydroquebec/sensor.py
+++ b/homeassistant/components/hydroquebec/sensor.py
@@ -20,7 +20,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pyhydroquebec==2.2.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ialarm/alarm_control_panel.py b/homeassistant/components/ialarm/alarm_control_panel.py
index 9d8cd76528a..8152c2496e6 100644
--- a/homeassistant/components/ialarm/alarm_control_panel.py
+++ b/homeassistant/components/ialarm/alarm_control_panel.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
     STATE_ALARM_TRIGGERED)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pyialarm==0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/icloud/device_tracker.py b/homeassistant/components/icloud/device_tracker.py
index 4fe6ed6a505..1d0e0d2fafb 100644
--- a/homeassistant/components/icloud/device_tracker.py
+++ b/homeassistant/components/icloud/device_tracker.py
@@ -17,7 +17,7 @@ from homeassistant.util.location import distance
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['pyicloud==0.9.1']
 
 CONF_ACCOUNTNAME = 'account_name'
 CONF_MAX_INTERVAL = 'max_interval'
diff --git a/homeassistant/components/idteck_prox/__init__.py b/homeassistant/components/idteck_prox/__init__.py
index 56814a1ea55..3de7aa7cc8c 100644
--- a/homeassistant/components/idteck_prox/__init__.py
+++ b/homeassistant/components/idteck_prox/__init__.py
@@ -7,7 +7,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.const import (
     CONF_HOST, CONF_PORT, CONF_NAME, EVENT_HOMEASSISTANT_STOP)
 
-
+REQUIREMENTS = ['rfk101py==0.0.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ifttt/__init__.py b/homeassistant/components/ifttt/__init__.py
index 47439fd394f..bad3984ea5b 100644
--- a/homeassistant/components/ifttt/__init__.py
+++ b/homeassistant/components/ifttt/__init__.py
@@ -9,8 +9,8 @@ from homeassistant.const import CONF_WEBHOOK_ID
 from homeassistant.helpers import config_entry_flow
 import homeassistant.helpers.config_validation as cv
 
-
-
+REQUIREMENTS = ['pyfttt==0.3']
+DEPENDENCIES = ['webhook']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ifttt/alarm_control_panel.py b/homeassistant/components/ifttt/alarm_control_panel.py
index 332beb7a081..3f806173196 100644
--- a/homeassistant/components/ifttt/alarm_control_panel.py
+++ b/homeassistant/components/ifttt/alarm_control_panel.py
@@ -15,7 +15,7 @@ import homeassistant.helpers.config_validation as cv
 
 from . import ATTR_EVENT, DOMAIN as IFTTT_DOMAIN, SERVICE_TRIGGER
 
-
+DEPENDENCIES = ['ifttt']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/iglo/light.py b/homeassistant/components/iglo/light.py
index 44b951e39a8..6851141efb4 100644
--- a/homeassistant/components/iglo/light.py
+++ b/homeassistant/components/iglo/light.py
@@ -12,7 +12,7 @@ from homeassistant.const import CONF_HOST, CONF_NAME, CONF_PORT
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 
-
+REQUIREMENTS = ['iglo==1.2.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ihc/__init__.py b/homeassistant/components/ihc/__init__.py
index 2160c1d5255..102acd82551 100644
--- a/homeassistant/components/ihc/__init__.py
+++ b/homeassistant/components/ihc/__init__.py
@@ -21,7 +21,7 @@ from .const import (
     SERVICE_SET_RUNTIME_VALUE_FLOAT, SERVICE_SET_RUNTIME_VALUE_INT)
 from .util import async_pulse
 
-
+REQUIREMENTS = ['ihcsdk==2.3.0', 'defusedxml==0.5.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ihc/binary_sensor.py b/homeassistant/components/ihc/binary_sensor.py
index aafd54fe695..69e3e1685af 100644
--- a/homeassistant/components/ihc/binary_sensor.py
+++ b/homeassistant/components/ihc/binary_sensor.py
@@ -6,7 +6,7 @@ from . import IHC_CONTROLLER, IHC_DATA, IHC_INFO
 from .const import CONF_INVERTING
 from .ihcdevice import IHCDevice
 
-
+DEPENDENCIES = ['ihc']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/ihc/light.py b/homeassistant/components/ihc/light.py
index 94057a07c24..ad6d0fb6511 100644
--- a/homeassistant/components/ihc/light.py
+++ b/homeassistant/components/ihc/light.py
@@ -9,7 +9,7 @@ from .const import CONF_DIMMABLE, CONF_OFF_ID, CONF_ON_ID
 from .ihcdevice import IHCDevice
 from .util import async_pulse, async_set_bool, async_set_int
 
-
+DEPENDENCIES = ['ihc']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ihc/sensor.py b/homeassistant/components/ihc/sensor.py
index 5b6d6f536b7..fd1f2cee53a 100644
--- a/homeassistant/components/ihc/sensor.py
+++ b/homeassistant/components/ihc/sensor.py
@@ -5,7 +5,7 @@ from homeassistant.helpers.entity import Entity
 from . import IHC_CONTROLLER, IHC_DATA, IHC_INFO
 from .ihcdevice import IHCDevice
 
-
+DEPENDENCIES = ['ihc']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/ihc/switch.py b/homeassistant/components/ihc/switch.py
index d3885f32dd2..e2189492b8f 100644
--- a/homeassistant/components/ihc/switch.py
+++ b/homeassistant/components/ihc/switch.py
@@ -6,7 +6,7 @@ from .const import CONF_OFF_ID, CONF_ON_ID
 from .ihcdevice import IHCDevice
 from .util import async_pulse, async_set_bool
 
-
+DEPENDENCIES = ['ihc']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/image_processing/__init__.py b/homeassistant/components/image_processing/__init__.py
index cfa087a2c30..e5193985629 100644
--- a/homeassistant/components/image_processing/__init__.py
+++ b/homeassistant/components/image_processing/__init__.py
@@ -17,7 +17,7 @@ from homeassistant.util.async_ import run_callback_threadsafe
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'image_processing'
-
+DEPENDENCIES = ['camera']
 
 SCAN_INTERVAL = timedelta(seconds=10)
 
diff --git a/homeassistant/components/imap/sensor.py b/homeassistant/components/imap/sensor.py
index 3dfcc8dae10..5ff23eb8e5d 100644
--- a/homeassistant/components/imap/sensor.py
+++ b/homeassistant/components/imap/sensor.py
@@ -15,7 +15,7 @@ from homeassistant.helpers.entity import Entity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['aioimaplib==0.7.15']
 
 CONF_SERVER = 'server'
 CONF_FOLDER = 'folder'
diff --git a/homeassistant/components/influxdb/__init__.py b/homeassistant/components/influxdb/__init__.py
index 58ea445ebc8..551996983c8 100644
--- a/homeassistant/components/influxdb/__init__.py
+++ b/homeassistant/components/influxdb/__init__.py
@@ -18,7 +18,7 @@ from homeassistant.helpers import state as state_helper, event as event_helper
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity_values import EntityValues
 
-
+REQUIREMENTS = ['influxdb==5.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/influxdb/sensor.py b/homeassistant/components/influxdb/sensor.py
index 671faa18c0a..3bec7e3c657 100644
--- a/homeassistant/components/influxdb/sensor.py
+++ b/homeassistant/components/influxdb/sensor.py
@@ -18,7 +18,7 @@ from . import CONF_DB_NAME
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['influxdb==5.2.0']
 
 DEFAULT_HOST = 'localhost'
 DEFAULT_PORT = 8086
diff --git a/homeassistant/components/insteon/__init__.py b/homeassistant/components/insteon/__init__.py
index 83b45b4ee54..a462ac0f63e 100644
--- a/homeassistant/components/insteon/__init__.py
+++ b/homeassistant/components/insteon/__init__.py
@@ -13,7 +13,7 @@ from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['insteonplm==0.15.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/insteon/binary_sensor.py b/homeassistant/components/insteon/binary_sensor.py
index 1d6591fd8fa..6f1e5675639 100644
--- a/homeassistant/components/insteon/binary_sensor.py
+++ b/homeassistant/components/insteon/binary_sensor.py
@@ -7,7 +7,7 @@ from . import InsteonEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['insteon']
 
 SENSOR_TYPES = {
     'openClosedSensor': 'opening',
diff --git a/homeassistant/components/insteon/cover.py b/homeassistant/components/insteon/cover.py
index 75dda4929e3..1bb316152a9 100644
--- a/homeassistant/components/insteon/cover.py
+++ b/homeassistant/components/insteon/cover.py
@@ -10,7 +10,7 @@ from . import InsteonEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['insteon']
 SUPPORTED_FEATURES = SUPPORT_OPEN | SUPPORT_CLOSE | SUPPORT_SET_POSITION
 
 
diff --git a/homeassistant/components/insteon/fan.py b/homeassistant/components/insteon/fan.py
index 29171b2ac6e..26a56d6df98 100644
--- a/homeassistant/components/insteon/fan.py
+++ b/homeassistant/components/insteon/fan.py
@@ -10,7 +10,7 @@ from . import InsteonEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['insteon']
 
 SPEED_TO_HEX = {
     SPEED_OFF: 0x00,
diff --git a/homeassistant/components/insteon/light.py b/homeassistant/components/insteon/light.py
index 30bb494a28f..676c053325c 100644
--- a/homeassistant/components/insteon/light.py
+++ b/homeassistant/components/insteon/light.py
@@ -8,7 +8,7 @@ from . import InsteonEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['insteon']
 
 MAX_BRIGHTNESS = 255
 
diff --git a/homeassistant/components/insteon/sensor.py b/homeassistant/components/insteon/sensor.py
index 765d9a78334..edea87e1f73 100644
--- a/homeassistant/components/insteon/sensor.py
+++ b/homeassistant/components/insteon/sensor.py
@@ -5,7 +5,7 @@ from homeassistant.helpers.entity import Entity
 
 from . import InsteonEntity
 
-
+DEPENDENCIES = ['insteon']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/insteon/switch.py b/homeassistant/components/insteon/switch.py
index d02bb060a21..4fdcdb20bb2 100644
--- a/homeassistant/components/insteon/switch.py
+++ b/homeassistant/components/insteon/switch.py
@@ -5,7 +5,7 @@ from homeassistant.components.switch import SwitchDevice
 
 from . import InsteonEntity
 
-
+DEPENDENCIES = ['insteon']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ios/__init__.py b/homeassistant/components/ios/__init__.py
index 20e203f1f82..cc8bd62293a 100644
--- a/homeassistant/components/ios/__init__.py
+++ b/homeassistant/components/ios/__init__.py
@@ -17,7 +17,7 @@ _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'ios'
 
-
+DEPENDENCIES = ['device_tracker', 'http', 'zeroconf']
 
 CONF_PUSH = 'push'
 CONF_PUSH_CATEGORIES = 'categories'
diff --git a/homeassistant/components/ios/notify.py b/homeassistant/components/ios/notify.py
index 9264ebae964..1f8aade4ec1 100644
--- a/homeassistant/components/ios/notify.py
+++ b/homeassistant/components/ios/notify.py
@@ -14,7 +14,7 @@ _LOGGER = logging.getLogger(__name__)
 
 PUSH_URL = "https://ios-push.home-assistant.io/push"
 
-
+DEPENDENCIES = ["ios"]
 
 
 # pylint: disable=invalid-name
diff --git a/homeassistant/components/ios/sensor.py b/homeassistant/components/ios/sensor.py
index 4003cb18cbd..404b313368c 100644
--- a/homeassistant/components/ios/sensor.py
+++ b/homeassistant/components/ios/sensor.py
@@ -3,7 +3,7 @@ from homeassistant.components import ios
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.icon import icon_for_battery_level
 
-
+DEPENDENCIES = ['ios']
 
 SENSOR_TYPES = {
     'level': ['Battery Level', '%'],
diff --git a/homeassistant/components/iota/__init__.py b/homeassistant/components/iota/__init__.py
index a7141d23d93..e28de61aad0 100644
--- a/homeassistant/components/iota/__init__.py
+++ b/homeassistant/components/iota/__init__.py
@@ -8,7 +8,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import load_platform
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['pyota==2.0.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/iota/sensor.py b/homeassistant/components/iota/sensor.py
index 22dcded9921..2955828aff5 100644
--- a/homeassistant/components/iota/sensor.py
+++ b/homeassistant/components/iota/sensor.py
@@ -15,7 +15,7 @@ CONF_IRI = 'iri'
 CONF_SEED = 'seed'
 CONF_TESTNET = 'testnet'
 
-
+DEPENDENCIES = ['iota']
 
 SCAN_INTERVAL = timedelta(minutes=3)
 
diff --git a/homeassistant/components/iperf3/__init__.py b/homeassistant/components/iperf3/__init__.py
index ba5af03f8ce..01ac2194f35 100644
--- a/homeassistant/components/iperf3/__init__.py
+++ b/homeassistant/components/iperf3/__init__.py
@@ -12,7 +12,7 @@ from homeassistant.helpers.discovery import async_load_platform
 from homeassistant.helpers.dispatcher import dispatcher_send
 from homeassistant.helpers.event import async_track_time_interval
 
-
+REQUIREMENTS = ['iperf3==0.1.10']
 
 DOMAIN = 'iperf3'
 DATA_UPDATED = '{}_data_updated'.format(DOMAIN)
diff --git a/homeassistant/components/iperf3/sensor.py b/homeassistant/components/iperf3/sensor.py
index 85916e0e54c..db9aafcdf4b 100644
--- a/homeassistant/components/iperf3/sensor.py
+++ b/homeassistant/components/iperf3/sensor.py
@@ -6,7 +6,7 @@ from homeassistant.helpers.restore_state import RestoreEntity
 
 from . import ATTR_VERSION, DATA_UPDATED, DOMAIN as IPERF3_DOMAIN, SENSOR_TYPES
 
-
+DEPENDENCIES = ['iperf3']
 
 ATTRIBUTION = 'Data retrieved using Iperf3'
 
diff --git a/homeassistant/components/ipma/weather.py b/homeassistant/components/ipma/weather.py
index 0e46199d815..7122957ad12 100644
--- a/homeassistant/components/ipma/weather.py
+++ b/homeassistant/components/ipma/weather.py
@@ -15,7 +15,7 @@ from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.helpers import config_validation as cv
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['pyipma==1.2.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/irish_rail_transport/sensor.py b/homeassistant/components/irish_rail_transport/sensor.py
index 8a4db9a2ea2..e17ecfde59d 100644
--- a/homeassistant/components/irish_rail_transport/sensor.py
+++ b/homeassistant/components/irish_rail_transport/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import CONF_NAME, ATTR_ATTRIBUTION
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['pyirishrail==0.0.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/islamic_prayer_times/sensor.py b/homeassistant/components/islamic_prayer_times/sensor.py
index 15595bd8517..9efbc237e30 100644
--- a/homeassistant/components/islamic_prayer_times/sensor.py
+++ b/homeassistant/components/islamic_prayer_times/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.const import DEVICE_CLASS_TIMESTAMP
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import async_track_point_in_time
 
-
+REQUIREMENTS = ['prayer_times_calculator==0.0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/iss/binary_sensor.py b/homeassistant/components/iss/binary_sensor.py
index 1761f595f59..381bc167918 100644
--- a/homeassistant/components/iss/binary_sensor.py
+++ b/homeassistant/components/iss/binary_sensor.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
     CONF_NAME, ATTR_LONGITUDE, ATTR_LATITUDE, CONF_SHOW_ON_MAP)
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['pyiss==1.0.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/isy994/__init__.py b/homeassistant/components/isy994/__init__.py
index 321b2317836..4eaa71deece 100644
--- a/homeassistant/components/isy994/__init__.py
+++ b/homeassistant/components/isy994/__init__.py
@@ -12,7 +12,7 @@ from homeassistant.helpers import config_validation as cv, discovery
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.typing import ConfigType, Dict
 
-
+REQUIREMENTS = ['PyISY==1.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/itach/remote.py b/homeassistant/components/itach/remote.py
index a0794edcdd1..beb773838fb 100644
--- a/homeassistant/components/itach/remote.py
+++ b/homeassistant/components/itach/remote.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
     CONF_DEVICES)
 from homeassistant.components.remote import PLATFORM_SCHEMA
 
-
+REQUIREMENTS = ['pyitachip2ir==0.0.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/jewish_calendar/sensor.py b/homeassistant/components/jewish_calendar/sensor.py
index 37c625bf1ab..478bbed98fa 100644
--- a/homeassistant/components/jewish_calendar/sensor.py
+++ b/homeassistant/components/jewish_calendar/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.sun import get_astral_event_date
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['hdate==0.8.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/joaoapps_join/__init__.py b/homeassistant/components/joaoapps_join/__init__.py
index 8d438b4919a..f1371deed2b 100644
--- a/homeassistant/components/joaoapps_join/__init__.py
+++ b/homeassistant/components/joaoapps_join/__init__.py
@@ -6,7 +6,7 @@ import voluptuous as vol
 import homeassistant.helpers.config_validation as cv
 from homeassistant.const import CONF_NAME, CONF_API_KEY
 
-
+REQUIREMENTS = ['python-join-api==0.0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/joaoapps_join/notify.py b/homeassistant/components/joaoapps_join/notify.py
index ca73d46bd04..0137520049d 100644
--- a/homeassistant/components/joaoapps_join/notify.py
+++ b/homeassistant/components/joaoapps_join/notify.py
@@ -7,7 +7,7 @@ from homeassistant.components.notify import (
 from homeassistant.const import CONF_API_KEY
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['python-join-api==0.0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/juicenet/__init__.py b/homeassistant/components/juicenet/__init__.py
index 056b202d346..f62331d1502 100644
--- a/homeassistant/components/juicenet/__init__.py
+++ b/homeassistant/components/juicenet/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.const import CONF_ACCESS_TOKEN
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['python-juicenet==0.0.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/juicenet/sensor.py b/homeassistant/components/juicenet/sensor.py
index d480501fb99..6b55e539547 100644
--- a/homeassistant/components/juicenet/sensor.py
+++ b/homeassistant/components/juicenet/sensor.py
@@ -8,7 +8,7 @@ from . import DOMAIN, JuicenetDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['juicenet']
 
 SENSOR_TYPES = {
     'status': ['Charging Status', None],
diff --git a/homeassistant/components/keenetic_ndms2/device_tracker.py b/homeassistant/components/keenetic_ndms2/device_tracker.py
index 22549b0f68d..f873507112d 100644
--- a/homeassistant/components/keenetic_ndms2/device_tracker.py
+++ b/homeassistant/components/keenetic_ndms2/device_tracker.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_PORT, CONF_PASSWORD, CONF_USERNAME
 )
 
-
+REQUIREMENTS = ['ndms2_client==0.0.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/keyboard/__init__.py b/homeassistant/components/keyboard/__init__.py
index 54db68578c9..44accca2f56 100644
--- a/homeassistant/components/keyboard/__init__.py
+++ b/homeassistant/components/keyboard/__init__.py
@@ -6,7 +6,7 @@ from homeassistant.const import (
     SERVICE_MEDIA_PREVIOUS_TRACK, SERVICE_VOLUME_DOWN, SERVICE_VOLUME_MUTE,
     SERVICE_VOLUME_UP)
 
-
+REQUIREMENTS = ['pyuserinput==0.1.11']
 
 DOMAIN = 'keyboard'
 
diff --git a/homeassistant/components/keyboard_remote/__init__.py b/homeassistant/components/keyboard_remote/__init__.py
index 7abaeccf492..e786fe458a8 100644
--- a/homeassistant/components/keyboard_remote/__init__.py
+++ b/homeassistant/components/keyboard_remote/__init__.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 
-
+REQUIREMENTS = ['evdev==0.6.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/kira/__init__.py b/homeassistant/components/kira/__init__.py
index 422c5ca2dca..d60d8e0cfeb 100644
--- a/homeassistant/components/kira/__init__.py
+++ b/homeassistant/components/kira/__init__.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pykira==0.1.1']
 
 DOMAIN = 'kira'
 
diff --git a/homeassistant/components/kiwi/lock.py b/homeassistant/components/kiwi/lock.py
index 303b35fe8d1..0b5806425d9 100644
--- a/homeassistant/components/kiwi/lock.py
+++ b/homeassistant/components/kiwi/lock.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
 from homeassistant.helpers.event import async_call_later
 from homeassistant.core import callback
 
-
+REQUIREMENTS = ['kiwiki-client==0.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/knx/__init__.py b/homeassistant/components/knx/__init__.py
index b39cce0f393..ea5b18b7ede 100644
--- a/homeassistant/components/knx/__init__.py
+++ b/homeassistant/components/knx/__init__.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.event import async_track_state_change
 from homeassistant.helpers.script import Script
 
-
+REQUIREMENTS = ['xknx==0.10.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/knx/binary_sensor.py b/homeassistant/components/knx/binary_sensor.py
index b636894fcf4..8ee21e24c5e 100644
--- a/homeassistant/components/knx/binary_sensor.py
+++ b/homeassistant/components/knx/binary_sensor.py
@@ -22,7 +22,7 @@ CONF_RESET_AFTER = 'reset_after'
 CONF__ACTION = 'turn_off_action'
 
 DEFAULT_NAME = 'KNX Binary Sensor'
-
+DEPENDENCIES = ['knx']
 
 AUTOMATION_SCHEMA = vol.Schema({
     vol.Optional(CONF_HOOK, default=CONF_DEFAULT_HOOK): cv.string,
diff --git a/homeassistant/components/knx/climate.py b/homeassistant/components/knx/climate.py
index 6b75c6ab713..e11e5449326 100644
--- a/homeassistant/components/knx/climate.py
+++ b/homeassistant/components/knx/climate.py
@@ -39,7 +39,7 @@ DEFAULT_NAME = 'KNX Climate'
 DEFAULT_SETPOINT_SHIFT_STEP = 0.5
 DEFAULT_SETPOINT_SHIFT_MAX = 6
 DEFAULT_SETPOINT_SHIFT_MIN = -6
-
+DEPENDENCIES = ['knx']
 
 # Map KNX operation modes to HA modes. This list might not be full.
 OPERATION_MODES = {
diff --git a/homeassistant/components/knx/cover.py b/homeassistant/components/knx/cover.py
index 4a33af16365..b2b287d1e87 100644
--- a/homeassistant/components/knx/cover.py
+++ b/homeassistant/components/knx/cover.py
@@ -25,7 +25,7 @@ CONF_INVERT_ANGLE = 'invert_angle'
 
 DEFAULT_TRAVEL_TIME = 25
 DEFAULT_NAME = 'KNX Cover'
-
+DEPENDENCIES = ['knx']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
diff --git a/homeassistant/components/knx/light.py b/homeassistant/components/knx/light.py
index 24b5d02d3ca..cf59f1fc135 100644
--- a/homeassistant/components/knx/light.py
+++ b/homeassistant/components/knx/light.py
@@ -30,7 +30,7 @@ DEFAULT_BRIGHTNESS = 255
 DEFAULT_COLOR_TEMP_MODE = 'absolute'
 DEFAULT_MIN_KELVIN = 2700  # 370 mireds
 DEFAULT_MAX_KELVIN = 6000  # 166 mireds
-
+DEPENDENCIES = ['knx']
 
 
 class ColorTempModes(Enum):
diff --git a/homeassistant/components/knx/notify.py b/homeassistant/components/knx/notify.py
index 8342fc10632..742252d1874 100644
--- a/homeassistant/components/knx/notify.py
+++ b/homeassistant/components/knx/notify.py
@@ -11,7 +11,7 @@ from . import ATTR_DISCOVER_DEVICES, DATA_KNX
 
 DEFAULT_NAME = 'KNX Notify'
 
-
+DEPENDENCIES = ['knx']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_ADDRESS): cv.string,
diff --git a/homeassistant/components/knx/scene.py b/homeassistant/components/knx/scene.py
index 271e9efb22c..4bf186c28ff 100644
--- a/homeassistant/components/knx/scene.py
+++ b/homeassistant/components/knx/scene.py
@@ -11,7 +11,7 @@ from . import ATTR_DISCOVER_DEVICES, DATA_KNX
 CONF_SCENE_NUMBER = 'scene_number'
 
 DEFAULT_NAME = 'KNX SCENE'
-
+DEPENDENCIES = ['knx']
 
 PLATFORM_SCHEMA = vol.Schema({
     vol.Required(CONF_PLATFORM): 'knx',
diff --git a/homeassistant/components/knx/sensor.py b/homeassistant/components/knx/sensor.py
index cfaf8bd91f8..7ddafe53be4 100644
--- a/homeassistant/components/knx/sensor.py
+++ b/homeassistant/components/knx/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.helpers.entity import Entity
 from . import ATTR_DISCOVER_DEVICES, DATA_KNX
 
 DEFAULT_NAME = 'KNX Sensor'
-
+DEPENDENCIES = ['knx']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_ADDRESS): cv.string,
diff --git a/homeassistant/components/knx/switch.py b/homeassistant/components/knx/switch.py
index 29a98d28807..e3beff39677 100644
--- a/homeassistant/components/knx/switch.py
+++ b/homeassistant/components/knx/switch.py
@@ -11,7 +11,7 @@ from . import ATTR_DISCOVER_DEVICES, DATA_KNX
 CONF_STATE_ADDRESS = 'state_address'
 
 DEFAULT_NAME = 'KNX Switch'
-
+DEPENDENCIES = ['knx']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_ADDRESS): cv.string,
diff --git a/homeassistant/components/kodi/media_player.py b/homeassistant/components/kodi/media_player.py
index 3f2974281fe..81c93dba2ac 100644
--- a/homeassistant/components/kodi/media_player.py
+++ b/homeassistant/components/kodi/media_player.py
@@ -31,7 +31,7 @@ from homeassistant.helpers.template import Template
 from homeassistant.util.yaml import dump
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['jsonrpc-async==0.6', 'jsonrpc-websocket==0.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/kodi/notify.py b/homeassistant/components/kodi/notify.py
index 8d9bfbe8fbe..f6ee2c47b96 100644
--- a/homeassistant/components/kodi/notify.py
+++ b/homeassistant/components/kodi/notify.py
@@ -14,7 +14,7 @@ from homeassistant.components.notify import (
     ATTR_DATA, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
     BaseNotificationService)
 
-
+REQUIREMENTS = ['jsonrpc-async==0.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/konnected/__init__.py b/homeassistant/components/konnected/__init__.py
index 50c107b12ee..276e395817c 100644
--- a/homeassistant/components/konnected/__init__.py
+++ b/homeassistant/components/konnected/__init__.py
@@ -32,7 +32,7 @@ from .handlers import HANDLERS
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['konnected==0.1.5']
 
 _BINARY_SENSOR_SCHEMA = vol.All(
     vol.Schema({
@@ -96,7 +96,7 @@ CONFIG_SCHEMA = vol.Schema(
     extra=vol.ALLOW_EXTRA,
 )
 
-
+DEPENDENCIES = ['http']
 
 
 async def async_setup(hass, config):
diff --git a/homeassistant/components/konnected/binary_sensor.py b/homeassistant/components/konnected/binary_sensor.py
index 7c884f90f5e..1fbfbea1861 100644
--- a/homeassistant/components/konnected/binary_sensor.py
+++ b/homeassistant/components/konnected/binary_sensor.py
@@ -12,7 +12,7 @@ from . import DOMAIN as KONNECTED_DOMAIN, PIN_TO_ZONE, SIGNAL_SENSOR_UPDATE
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['konnected']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/konnected/sensor.py b/homeassistant/components/konnected/sensor.py
index 43d9de96214..a48d1a58619 100644
--- a/homeassistant/components/konnected/sensor.py
+++ b/homeassistant/components/konnected/sensor.py
@@ -13,7 +13,7 @@ from .const import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['konnected']
 
 SENSOR_TYPES = {
     DEVICE_CLASS_TEMPERATURE: ['Temperature', TEMP_CELSIUS],
diff --git a/homeassistant/components/konnected/switch.py b/homeassistant/components/konnected/switch.py
index 3d8d2a88067..3db602215b9 100644
--- a/homeassistant/components/konnected/switch.py
+++ b/homeassistant/components/konnected/switch.py
@@ -11,7 +11,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['konnected']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/kwb/sensor.py b/homeassistant/components/kwb/sensor.py
index 08292377a60..bad0ea3cded 100644
--- a/homeassistant/components/kwb/sensor.py
+++ b/homeassistant/components/kwb/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pykwb==0.0.8']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/lacrosse/sensor.py b/homeassistant/components/lacrosse/sensor.py
index 4b5e000708f..9240343a5e3 100644
--- a/homeassistant/components/lacrosse/sensor.py
+++ b/homeassistant/components/lacrosse/sensor.py
@@ -14,7 +14,7 @@ from homeassistant.helpers.entity import Entity, async_generate_entity_id
 from homeassistant.helpers.event import async_track_point_in_utc_time
 from homeassistant.util import dt as dt_util
 
-
+REQUIREMENTS = ['pylacrosse==0.3.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/lametric/__init__.py b/homeassistant/components/lametric/__init__.py
index bcd8aec4b90..0c3c8b08dd7 100644
--- a/homeassistant/components/lametric/__init__.py
+++ b/homeassistant/components/lametric/__init__.py
@@ -5,7 +5,7 @@ import voluptuous as vol
 
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['lmnotify==0.0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/lametric/notify.py b/homeassistant/components/lametric/notify.py
index 7c7ab711e70..358bb056b00 100644
--- a/homeassistant/components/lametric/notify.py
+++ b/homeassistant/components/lametric/notify.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 
 from . import DOMAIN as LAMETRIC_DOMAIN
 
-
+REQUIREMENTS = ['lmnotify==0.0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -21,7 +21,7 @@ CONF_CYCLES = 'cycles'
 CONF_LIFETIME = 'lifetime'
 CONF_PRIORITY = 'priority'
 
-
+DEPENDENCIES = ['lametric']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_ICON, default='a7956'): cv.string,
diff --git a/homeassistant/components/lastfm/sensor.py b/homeassistant/components/lastfm/sensor.py
index 0dad1ac7c6c..e4e28eff4f1 100644
--- a/homeassistant/components/lastfm/sensor.py
+++ b/homeassistant/components/lastfm/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.const import CONF_API_KEY, ATTR_ATTRIBUTION
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['pylast==3.1.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/launch_library/sensor.py b/homeassistant/components/launch_library/sensor.py
index 0d5bc2b764a..4b42ddba268 100644
--- a/homeassistant/components/launch_library/sensor.py
+++ b/homeassistant/components/launch_library/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.const import ATTR_ATTRIBUTION, CONF_NAME
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-
+REQUIREMENTS = ['pylaunches==0.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/lcn/__init__.py b/homeassistant/components/lcn/__init__.py
index 018a84f7156..44f69c261b9 100644
--- a/homeassistant/components/lcn/__init__.py
+++ b/homeassistant/components/lcn/__init__.py
@@ -20,7 +20,7 @@ from .const import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['pypck==0.5.9']
 
 
 def has_unique_connection_names(connections):
diff --git a/homeassistant/components/lcn/binary_sensor.py b/homeassistant/components/lcn/binary_sensor.py
index 974572dbc2a..0ffa2e50d8b 100755
--- a/homeassistant/components/lcn/binary_sensor.py
+++ b/homeassistant/components/lcn/binary_sensor.py
@@ -6,7 +6,7 @@ from . import LcnDevice, get_connection
 from .const import (
     BINSENSOR_PORTS, CONF_CONNECTIONS, CONF_SOURCE, DATA_LCN, SETPOINTS)
 
-
+DEPENDENCIES = ['lcn']
 
 
 async def async_setup_platform(hass, hass_config, async_add_entities,
diff --git a/homeassistant/components/lcn/cover.py b/homeassistant/components/lcn/cover.py
index 8172303dfac..a32ff7c23f4 100755
--- a/homeassistant/components/lcn/cover.py
+++ b/homeassistant/components/lcn/cover.py
@@ -5,7 +5,7 @@ from homeassistant.const import CONF_ADDRESS
 from . import LcnDevice, get_connection
 from .const import CONF_CONNECTIONS, CONF_MOTOR, DATA_LCN
 
-
+DEPENDENCIES = ['lcn']
 
 
 async def async_setup_platform(hass, hass_config, async_add_entities,
diff --git a/homeassistant/components/lcn/light.py b/homeassistant/components/lcn/light.py
index f21f2c8c3ad..00b78259354 100644
--- a/homeassistant/components/lcn/light.py
+++ b/homeassistant/components/lcn/light.py
@@ -9,7 +9,7 @@ from .const import (
     CONF_CONNECTIONS, CONF_DIMMABLE, CONF_OUTPUT, CONF_TRANSITION, DATA_LCN,
     OUTPUT_PORTS)
 
-
+DEPENDENCIES = ['lcn']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/lcn/sensor.py b/homeassistant/components/lcn/sensor.py
index 87bab240e5f..5e50d092ada 100755
--- a/homeassistant/components/lcn/sensor.py
+++ b/homeassistant/components/lcn/sensor.py
@@ -6,7 +6,7 @@ from .const import (
     CONF_CONNECTIONS, CONF_SOURCE, DATA_LCN, LED_PORTS, S0_INPUTS, SETPOINTS,
     THRESHOLDS, VARIABLES)
 
-
+DEPENDENCIES = ['lcn']
 
 
 async def async_setup_platform(hass, hass_config, async_add_entities,
diff --git a/homeassistant/components/lcn/switch.py b/homeassistant/components/lcn/switch.py
index fcfaef1c64b..7c375f4a598 100755
--- a/homeassistant/components/lcn/switch.py
+++ b/homeassistant/components/lcn/switch.py
@@ -5,7 +5,7 @@ from homeassistant.const import CONF_ADDRESS
 from . import LcnDevice, get_connection
 from .const import CONF_CONNECTIONS, CONF_OUTPUT, DATA_LCN, OUTPUT_PORTS
 
-
+DEPENDENCIES = ['lcn']
 
 
 async def async_setup_platform(hass, hass_config, async_add_entities,
diff --git a/homeassistant/components/lg_netcast/media_player.py b/homeassistant/components/lg_netcast/media_player.py
index 691bdb3cc07..12fee5fae96 100644
--- a/homeassistant/components/lg_netcast/media_player.py
+++ b/homeassistant/components/lg_netcast/media_player.py
@@ -17,7 +17,7 @@ from homeassistant.const import (
     STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pylgnetcast-homeassistant==0.2.0.dev0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/lg_soundbar/media_player.py b/homeassistant/components/lg_soundbar/media_player.py
index 305c3a74f9a..2e2481a462b 100644
--- a/homeassistant/components/lg_soundbar/media_player.py
+++ b/homeassistant/components/lg_soundbar/media_player.py
@@ -9,7 +9,7 @@ from homeassistant.components.media_player.const import (
 
 from homeassistant.const import STATE_ON
 
-
+REQUIREMENTS = ['temescal==0.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/lifx/__init__.py b/homeassistant/components/lifx/__init__.py
index d2f9e4cf439..82802bab4af 100644
--- a/homeassistant/components/lifx/__init__.py
+++ b/homeassistant/components/lifx/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.helpers import config_entry_flow
 from homeassistant.components.light import DOMAIN as LIGHT_DOMAIN
 
 DOMAIN = 'lifx'
-
+REQUIREMENTS = ['aiolifx==0.6.7']
 
 CONF_SERVER = 'server'
 CONF_BROADCAST = 'broadcast'
diff --git a/homeassistant/components/lifx/light.py b/homeassistant/components/lifx/light.py
index eb5699aaf9d..014ca9ae6c8 100644
--- a/homeassistant/components/lifx/light.py
+++ b/homeassistant/components/lifx/light.py
@@ -30,8 +30,8 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
-
+DEPENDENCIES = ['lifx']
+REQUIREMENTS = ['aiolifx_effects==0.2.1']
 
 SCAN_INTERVAL = timedelta(seconds=10)
 
diff --git a/homeassistant/components/lifx_legacy/light.py b/homeassistant/components/lifx_legacy/light.py
index 1c4e66cf7f7..6c5f68937f8 100644
--- a/homeassistant/components/lifx_legacy/light.py
+++ b/homeassistant/components/lifx_legacy/light.py
@@ -22,7 +22,7 @@ import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['liffylights==0.9.4']
 
 BYTE_MAX = 255
 
diff --git a/homeassistant/components/light/__init__.py b/homeassistant/components/light/__init__.py
index 4971cd257c6..db2e9ce0197 100644
--- a/homeassistant/components/light/__init__.py
+++ b/homeassistant/components/light/__init__.py
@@ -24,7 +24,7 @@ from homeassistant.loader import bind_hass
 import homeassistant.util.color as color_util
 
 DOMAIN = 'light'
-
+DEPENDENCIES = ['group']
 SCAN_INTERVAL = timedelta(seconds=30)
 
 GROUP_NAME_ALL_LIGHTS = 'all lights'
diff --git a/homeassistant/components/lightwave/__init__.py b/homeassistant/components/lightwave/__init__.py
index 54407ade742..f6e11352265 100644
--- a/homeassistant/components/lightwave/__init__.py
+++ b/homeassistant/components/lightwave/__init__.py
@@ -5,7 +5,7 @@ from homeassistant.const import (CONF_HOST, CONF_LIGHTS, CONF_NAME,
                                  CONF_SWITCHES)
 from homeassistant.helpers.discovery import async_load_platform
 
-
+REQUIREMENTS = ['lightwave==0.15']
 
 LIGHTWAVE_LINK = 'lightwave_link'
 
diff --git a/homeassistant/components/lightwave/light.py b/homeassistant/components/lightwave/light.py
index 54e5f9672fd..f22533d2548 100644
--- a/homeassistant/components/lightwave/light.py
+++ b/homeassistant/components/lightwave/light.py
@@ -5,7 +5,7 @@ from homeassistant.const import CONF_NAME
 
 from . import LIGHTWAVE_LINK
 
-
+DEPENDENCIES = ['lightwave']
 
 MAX_BRIGHTNESS = 255
 
diff --git a/homeassistant/components/lightwave/switch.py b/homeassistant/components/lightwave/switch.py
index d4b27eef880..dfa93b4b151 100644
--- a/homeassistant/components/lightwave/switch.py
+++ b/homeassistant/components/lightwave/switch.py
@@ -4,7 +4,7 @@ from homeassistant.const import CONF_NAME
 
 from . import LIGHTWAVE_LINK
 
-
+DEPENDENCIES = ['lightwave']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/limitlessled/light.py b/homeassistant/components/limitlessled/light.py
index 31f6679400e..4f187afa1d7 100644
--- a/homeassistant/components/limitlessled/light.py
+++ b/homeassistant/components/limitlessled/light.py
@@ -15,7 +15,7 @@ from homeassistant.util.color import (
     color_temperature_mired_to_kelvin, color_hs_to_RGB)
 from homeassistant.helpers.restore_state import RestoreEntity
 
-
+REQUIREMENTS = ['limitlessled==1.1.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/linksys_ap/device_tracker.py b/homeassistant/components/linksys_ap/device_tracker.py
index 324a8390c54..46cc78d4e4a 100644
--- a/homeassistant/components/linksys_ap/device_tracker.py
+++ b/homeassistant/components/linksys_ap/device_tracker.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
 INTERFACES = 2
 DEFAULT_TIMEOUT = 10
 
-
+REQUIREMENTS = ['beautifulsoup4==4.7.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/linky/sensor.py b/homeassistant/components/linky/sensor.py
index 0684a766f95..35f85f15ed6 100644
--- a/homeassistant/components/linky/sensor.py
+++ b/homeassistant/components/linky/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pylinky==0.3.3']
 _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = timedelta(minutes=10)
diff --git a/homeassistant/components/linode/__init__.py b/homeassistant/components/linode/__init__.py
index 1292b76110b..8bbd98c0acf 100644
--- a/homeassistant/components/linode/__init__.py
+++ b/homeassistant/components/linode/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.const import CONF_ACCESS_TOKEN
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['linode-api==4.1.9b1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/linode/binary_sensor.py b/homeassistant/components/linode/binary_sensor.py
index d82c48c61fd..19455917dbb 100644
--- a/homeassistant/components/linode/binary_sensor.py
+++ b/homeassistant/components/linode/binary_sensor.py
@@ -16,7 +16,7 @@ _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Node'
 DEFAULT_DEVICE_CLASS = 'moving'
-
+DEPENDENCIES = ['linode']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_NODES): vol.All(cv.ensure_list, [cv.string]),
diff --git a/homeassistant/components/linode/switch.py b/homeassistant/components/linode/switch.py
index 378bc1824ee..e5f97ef756e 100644
--- a/homeassistant/components/linode/switch.py
+++ b/homeassistant/components/linode/switch.py
@@ -13,7 +13,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['linode']
 
 DEFAULT_NAME = 'Node'
 
diff --git a/homeassistant/components/linux_battery/sensor.py b/homeassistant/components/linux_battery/sensor.py
index 6ff6487a530..7164315de8e 100644
--- a/homeassistant/components/linux_battery/sensor.py
+++ b/homeassistant/components/linux_battery/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.const import ATTR_NAME, CONF_NAME, DEVICE_CLASS_BATTERY
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['batinfo==0.4.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/lirc/__init__.py b/homeassistant/components/lirc/__init__.py
index 72e1c4be2e7..0f00eda2007 100644
--- a/homeassistant/components/lirc/__init__.py
+++ b/homeassistant/components/lirc/__init__.py
@@ -9,7 +9,7 @@ import voluptuous as vol
 from homeassistant.const import (
     EVENT_HOMEASSISTANT_STOP, EVENT_HOMEASSISTANT_START)
 
-
+REQUIREMENTS = ['python-lirc==1.2.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/litejet/__init__.py b/homeassistant/components/litejet/__init__.py
index d5bb4a60153..b4e8e45fa0b 100644
--- a/homeassistant/components/litejet/__init__.py
+++ b/homeassistant/components/litejet/__init__.py
@@ -7,7 +7,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers import discovery
 from homeassistant.const import CONF_PORT
 
-
+REQUIREMENTS = ['pylitejet==0.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/litejet/light.py b/homeassistant/components/litejet/light.py
index 4a13526e39f..e52e50ed21a 100644
--- a/homeassistant/components/litejet/light.py
+++ b/homeassistant/components/litejet/light.py
@@ -7,7 +7,7 @@ from homeassistant.components.light import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['litejet']
 
 ATTR_NUMBER = 'number'
 
diff --git a/homeassistant/components/litejet/scene.py b/homeassistant/components/litejet/scene.py
index 725334e303e..2563c9ceb0c 100644
--- a/homeassistant/components/litejet/scene.py
+++ b/homeassistant/components/litejet/scene.py
@@ -4,7 +4,7 @@ import logging
 from homeassistant.components import litejet
 from homeassistant.components.scene import Scene
 
-
+DEPENDENCIES = ['litejet']
 
 ATTR_NUMBER = 'number'
 
diff --git a/homeassistant/components/litejet/switch.py b/homeassistant/components/litejet/switch.py
index 92bd655f3fb..9972dcb9f44 100644
--- a/homeassistant/components/litejet/switch.py
+++ b/homeassistant/components/litejet/switch.py
@@ -4,7 +4,7 @@ import logging
 from homeassistant.components import litejet
 from homeassistant.components.switch import SwitchDevice
 
-
+DEPENDENCIES = ['litejet']
 
 ATTR_NUMBER = 'number'
 
diff --git a/homeassistant/components/liveboxplaytv/media_player.py b/homeassistant/components/liveboxplaytv/media_player.py
index 46e23cd211d..1ee9931d233 100644
--- a/homeassistant/components/liveboxplaytv/media_player.py
+++ b/homeassistant/components/liveboxplaytv/media_player.py
@@ -18,7 +18,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['liveboxplaytv==2.0.2', 'pyteleloisirs==3.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/locative/__init__.py b/homeassistant/components/locative/__init__.py
index 36c639ba848..335ae4cfe1e 100644
--- a/homeassistant/components/locative/__init__.py
+++ b/homeassistant/components/locative/__init__.py
@@ -16,7 +16,7 @@ from homeassistant.helpers.dispatcher import async_dispatcher_send
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'locative'
-
+DEPENDENCIES = ['webhook']
 
 TRACKER_UPDATE = '{}_tracker_update'.format(DOMAIN)
 
diff --git a/homeassistant/components/locative/device_tracker.py b/homeassistant/components/locative/device_tracker.py
index a25de7538c8..51135f4e21a 100644
--- a/homeassistant/components/locative/device_tracker.py
+++ b/homeassistant/components/locative/device_tracker.py
@@ -10,7 +10,7 @@ from . import DOMAIN as LOCATIVE_DOMAIN, TRACKER_UPDATE
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['locative']
 
 DATA_KEY = '{}.{}'.format(LOCATIVE_DOMAIN, DEVICE_TRACKER_DOMAIN)
 
diff --git a/homeassistant/components/lock/__init__.py b/homeassistant/components/lock/__init__.py
index a7b45cabcd0..fe5286ba813 100644
--- a/homeassistant/components/lock/__init__.py
+++ b/homeassistant/components/lock/__init__.py
@@ -19,7 +19,7 @@ from homeassistant.components import group
 ATTR_CHANGED_BY = 'changed_by'
 
 DOMAIN = 'lock'
-
+DEPENDENCIES = ['group']
 SCAN_INTERVAL = timedelta(seconds=30)
 
 ENTITY_ID_ALL_LOCKS = group.ENTITY_ID_FORMAT.format('all_locks')
diff --git a/homeassistant/components/logbook/__init__.py b/homeassistant/components/logbook/__init__.py
index 97b3e890371..7a0fb5e2654 100644
--- a/homeassistant/components/logbook/__init__.py
+++ b/homeassistant/components/logbook/__init__.py
@@ -31,7 +31,7 @@ CONF_DOMAINS = 'domains'
 CONF_ENTITIES = 'entities'
 CONTINUOUS_DOMAINS = ['proximity', 'sensor']
 
-
+DEPENDENCIES = ['recorder', 'frontend']
 
 DOMAIN = 'logbook'
 
diff --git a/homeassistant/components/logi_circle/__init__.py b/homeassistant/components/logi_circle/__init__.py
index d14d331eea7..433895293f4 100644
--- a/homeassistant/components/logi_circle/__init__.py
+++ b/homeassistant/components/logi_circle/__init__.py
@@ -20,7 +20,7 @@ from .const import (
     RECORDING_MODE_KEY, SIGNAL_LOGI_CIRCLE_RECONFIGURE,
     SIGNAL_LOGI_CIRCLE_RECORD, SIGNAL_LOGI_CIRCLE_SNAPSHOT)
 
-
+REQUIREMENTS = ['logi_circle==0.2.2']
 
 NOTIFICATION_ID = 'logi_circle_notification'
 NOTIFICATION_TITLE = 'Logi Circle Setup'
diff --git a/homeassistant/components/logi_circle/camera.py b/homeassistant/components/logi_circle/camera.py
index 0ececc9657a..b69f23ac19d 100644
--- a/homeassistant/components/logi_circle/camera.py
+++ b/homeassistant/components/logi_circle/camera.py
@@ -15,7 +15,7 @@ from .const import (
     RECORDING_MODE_KEY, SIGNAL_LOGI_CIRCLE_RECONFIGURE,
     SIGNAL_LOGI_CIRCLE_RECORD, SIGNAL_LOGI_CIRCLE_SNAPSHOT)
 
-
+DEPENDENCIES = ['logi_circle', 'ffmpeg']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/logi_circle/sensor.py b/homeassistant/components/logi_circle/sensor.py
index 5b0efc0af94..01d5492eea7 100644
--- a/homeassistant/components/logi_circle/sensor.py
+++ b/homeassistant/components/logi_circle/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.util.dt import as_local
 from .const import (
     ATTRIBUTION, DOMAIN as LOGI_CIRCLE_DOMAIN, LOGI_SENSORS as SENSOR_TYPES)
 
-
+DEPENDENCIES = ['logi_circle']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/london_underground/sensor.py b/homeassistant/components/london_underground/sensor.py
index 4421f1d614f..c2502e2ab2b 100644
--- a/homeassistant/components/london_underground/sensor.py
+++ b/homeassistant/components/london_underground/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.const import ATTR_ATTRIBUTION
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['london-tube-status==0.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/loopenergy/sensor.py b/homeassistant/components/loopenergy/sensor.py
index f6a4db9ef55..23bdf48f645 100644
--- a/homeassistant/components/loopenergy/sensor.py
+++ b/homeassistant/components/loopenergy/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.helpers.entity import Entity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['pyloopenergy==0.1.2']
 
 CONF_ELEC = 'electricity'
 CONF_GAS = 'gas'
diff --git a/homeassistant/components/luci/device_tracker.py b/homeassistant/components/luci/device_tracker.py
index bd11cfb9a81..77273d89d42 100644
--- a/homeassistant/components/luci/device_tracker.py
+++ b/homeassistant/components/luci/device_tracker.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_PASSWORD, CONF_SSL, CONF_USERNAME)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['openwrt-luci-rpc==1.0.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/luftdaten/__init__.py b/homeassistant/components/luftdaten/__init__.py
index 898f90d0687..125cefb9026 100644
--- a/homeassistant/components/luftdaten/__init__.py
+++ b/homeassistant/components/luftdaten/__init__.py
@@ -17,7 +17,7 @@ from homeassistant.helpers.event import async_track_time_interval
 from .config_flow import configured_sensors, duplicate_stations
 from .const import CONF_SENSOR_ID, DEFAULT_SCAN_INTERVAL, DOMAIN
 
-
+REQUIREMENTS = ['luftdaten==0.3.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/luftdaten/sensor.py b/homeassistant/components/luftdaten/sensor.py
index a4c734e8ec0..107673bac45 100644
--- a/homeassistant/components/luftdaten/sensor.py
+++ b/homeassistant/components/luftdaten/sensor.py
@@ -14,7 +14,7 @@ from .const import ATTR_SENSOR_ID
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['luftdaten']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/lupusec/__init__.py b/homeassistant/components/lupusec/__init__.py
index 5eeb68b7b78..8a5f098f741 100644
--- a/homeassistant/components/lupusec/__init__.py
+++ b/homeassistant/components/lupusec/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.entity import Entity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['lupupy==0.0.17']
 
 DOMAIN = 'lupusec'
 
diff --git a/homeassistant/components/lupusec/alarm_control_panel.py b/homeassistant/components/lupusec/alarm_control_panel.py
index f2295203487..0a88f3bd552 100644
--- a/homeassistant/components/lupusec/alarm_control_panel.py
+++ b/homeassistant/components/lupusec/alarm_control_panel.py
@@ -8,7 +8,7 @@ from homeassistant.const import (
 
 from . import DOMAIN as LUPUSEC_DOMAIN, LupusecDevice
 
-
+DEPENDENCIES = ['lupusec']
 
 ICON = 'mdi:security'
 
diff --git a/homeassistant/components/lupusec/binary_sensor.py b/homeassistant/components/lupusec/binary_sensor.py
index a8e4afdbd9d..2c3f5e0e0b8 100644
--- a/homeassistant/components/lupusec/binary_sensor.py
+++ b/homeassistant/components/lupusec/binary_sensor.py
@@ -7,7 +7,7 @@ from homeassistant.components.binary_sensor import (
 
 from . import DOMAIN as LUPUSEC_DOMAIN, LupusecDevice
 
-
+DEPENDENCIES = ['lupusec']
 
 SCAN_INTERVAL = timedelta(seconds=2)
 
diff --git a/homeassistant/components/lupusec/switch.py b/homeassistant/components/lupusec/switch.py
index a65b4e20010..0d86ea0a365 100644
--- a/homeassistant/components/lupusec/switch.py
+++ b/homeassistant/components/lupusec/switch.py
@@ -6,7 +6,7 @@ from homeassistant.components.switch import SwitchDevice
 
 from . import DOMAIN as LUPUSEC_DOMAIN, LupusecDevice
 
-
+DEPENDENCIES = ['lupusec']
 
 SCAN_INTERVAL = timedelta(seconds=2)
 
diff --git a/homeassistant/components/lutron/__init__.py b/homeassistant/components/lutron/__init__.py
index bfea1f4b4d5..f642e96d8f6 100644
--- a/homeassistant/components/lutron/__init__.py
+++ b/homeassistant/components/lutron/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.helpers import discovery
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import slugify
 
-
+REQUIREMENTS = ['pylutron==0.2.0']
 
 DOMAIN = 'lutron'
 
diff --git a/homeassistant/components/lutron/cover.py b/homeassistant/components/lutron/cover.py
index 9dbf7374aa2..da7f69095fc 100644
--- a/homeassistant/components/lutron/cover.py
+++ b/homeassistant/components/lutron/cover.py
@@ -9,7 +9,7 @@ from . import LUTRON_CONTROLLER, LUTRON_DEVICES, LutronDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['lutron']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/lutron/light.py b/homeassistant/components/lutron/light.py
index f042bfa5db1..5f3fd4787fd 100644
--- a/homeassistant/components/lutron/light.py
+++ b/homeassistant/components/lutron/light.py
@@ -8,7 +8,7 @@ from . import LUTRON_CONTROLLER, LUTRON_DEVICES, LutronDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['lutron']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/lutron/scene.py b/homeassistant/components/lutron/scene.py
index afe91599daf..a2d18c6d242 100644
--- a/homeassistant/components/lutron/scene.py
+++ b/homeassistant/components/lutron/scene.py
@@ -7,7 +7,7 @@ from . import LUTRON_CONTROLLER, LUTRON_DEVICES, LutronDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['lutron']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/lutron/switch.py b/homeassistant/components/lutron/switch.py
index 2a3e48b0685..b42c0d930bc 100644
--- a/homeassistant/components/lutron/switch.py
+++ b/homeassistant/components/lutron/switch.py
@@ -7,7 +7,7 @@ from . import LUTRON_CONTROLLER, LUTRON_DEVICES, LutronDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['lutron']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/lutron_caseta/__init__.py b/homeassistant/components/lutron_caseta/__init__.py
index 4490d16329b..61c005f60b2 100644
--- a/homeassistant/components/lutron_caseta/__init__.py
+++ b/homeassistant/components/lutron_caseta/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.const import CONF_HOST
 from homeassistant.helpers import discovery
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['pylutron-caseta==0.5.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/lutron_caseta/cover.py b/homeassistant/components/lutron_caseta/cover.py
index d4c061e13bd..d970f5282ff 100644
--- a/homeassistant/components/lutron_caseta/cover.py
+++ b/homeassistant/components/lutron_caseta/cover.py
@@ -9,7 +9,7 @@ from . import LUTRON_CASETA_SMARTBRIDGE, LutronCasetaDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['lutron_caseta']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/lutron_caseta/light.py b/homeassistant/components/lutron_caseta/light.py
index 67efce514a9..d883da73c91 100644
--- a/homeassistant/components/lutron_caseta/light.py
+++ b/homeassistant/components/lutron_caseta/light.py
@@ -10,7 +10,7 @@ from . import LUTRON_CASETA_SMARTBRIDGE, LutronCasetaDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['lutron_caseta']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/lutron_caseta/scene.py b/homeassistant/components/lutron_caseta/scene.py
index 92b2476dbb1..2e7059a56fc 100644
--- a/homeassistant/components/lutron_caseta/scene.py
+++ b/homeassistant/components/lutron_caseta/scene.py
@@ -7,7 +7,7 @@ from . import LUTRON_CASETA_SMARTBRIDGE
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['lutron_caseta']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/lutron_caseta/switch.py b/homeassistant/components/lutron_caseta/switch.py
index 860707656e9..54c67091357 100644
--- a/homeassistant/components/lutron_caseta/switch.py
+++ b/homeassistant/components/lutron_caseta/switch.py
@@ -7,7 +7,7 @@ from . import LUTRON_CASETA_SMARTBRIDGE, LutronCasetaDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['lutron_caseta']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/lw12wifi/light.py b/homeassistant/components/lw12wifi/light.py
index b00f8948bac..5d9b7635ad2 100644
--- a/homeassistant/components/lw12wifi/light.py
+++ b/homeassistant/components/lw12wifi/light.py
@@ -16,7 +16,7 @@ import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 
 
-
+REQUIREMENTS = ['lw12==0.9.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/lyft/sensor.py b/homeassistant/components/lyft/sensor.py
index 6f13ba64225..98d79cd970b 100644
--- a/homeassistant/components/lyft/sensor.py
+++ b/homeassistant/components/lyft/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['lyft_rides==0.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/magicseaweed/sensor.py b/homeassistant/components/magicseaweed/sensor.py
index eaa61d2b7a6..4c09d1e09e0 100644
--- a/homeassistant/components/magicseaweed/sensor.py
+++ b/homeassistant/components/magicseaweed/sensor.py
@@ -11,7 +11,7 @@ import homeassistant.util.dt as dt_util
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['magicseaweed==1.0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mailbox/__init__.py b/homeassistant/components/mailbox/__init__.py
index 359e6e6303c..1907a1e9e97 100644
--- a/homeassistant/components/mailbox/__init__.py
+++ b/homeassistant/components/mailbox/__init__.py
@@ -18,7 +18,7 @@ from homeassistant.setup import async_prepare_setup_platform
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['http']
 DOMAIN = 'mailbox'
 
 EVENT = 'mailbox_updated'
diff --git a/homeassistant/components/mailgun/__init__.py b/homeassistant/components/mailgun/__init__.py
index cd9c37959b6..2a941d8bf50 100644
--- a/homeassistant/components/mailgun/__init__.py
+++ b/homeassistant/components/mailgun/__init__.py
@@ -15,7 +15,7 @@ _LOGGER = logging.getLogger(__name__)
 CONF_SANDBOX = 'sandbox'
 
 DEFAULT_SANDBOX = False
-
+DEPENDENCIES = ['webhook']
 DOMAIN = 'mailgun'
 
 MESSAGE_RECEIVED = '{}_message_received'.format(DOMAIN)
diff --git a/homeassistant/components/mailgun/notify.py b/homeassistant/components/mailgun/notify.py
index 81b928ad24d..b9f5bf0b100 100644
--- a/homeassistant/components/mailgun/notify.py
+++ b/homeassistant/components/mailgun/notify.py
@@ -11,11 +11,11 @@ from homeassistant.const import (
 
 from . import CONF_SANDBOX, DOMAIN as MAILGUN_DOMAIN
 
-
+REQUIREMENTS = ['pymailgunner==1.4']
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['mailgun']
 
 # Images to attach to notification
 ATTR_IMAGES = 'images'
diff --git a/homeassistant/components/manual_mqtt/alarm_control_panel.py b/homeassistant/components/manual_mqtt/alarm_control_panel.py
index 71c57a40a16..8057a899347 100644
--- a/homeassistant/components/manual_mqtt/alarm_control_panel.py
+++ b/homeassistant/components/manual_mqtt/alarm_control_panel.py
@@ -83,7 +83,7 @@ def _state_schema(state):
     return vol.Schema(schema)
 
 
-
+DEPENDENCIES = ['mqtt']
 
 PLATFORM_SCHEMA = vol.Schema(vol.All(mqtt.MQTT_BASE_PLATFORM_SCHEMA.extend({
     vol.Required(CONF_PLATFORM): 'manual_mqtt',
diff --git a/homeassistant/components/mastodon/notify.py b/homeassistant/components/mastodon/notify.py
index 01a3f44400e..c1a91b8312e 100644
--- a/homeassistant/components/mastodon/notify.py
+++ b/homeassistant/components/mastodon/notify.py
@@ -9,7 +9,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.components.notify import (PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-
+REQUIREMENTS = ['Mastodon.py==1.3.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/matrix/__init__.py b/homeassistant/components/matrix/__init__.py
index 52a4c2794e0..4b3c1bf4d76 100644
--- a/homeassistant/components/matrix/__init__.py
+++ b/homeassistant/components/matrix/__init__.py
@@ -14,7 +14,7 @@ from homeassistant.const import (CONF_USERNAME, CONF_PASSWORD,
 from homeassistant.util.json import load_json, save_json
 from homeassistant.exceptions import HomeAssistantError
 
-
+REQUIREMENTS = ['matrix-client==0.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/matrix/notify.py b/homeassistant/components/matrix/notify.py
index bbbe52a6739..f1f53268c2b 100644
--- a/homeassistant/components/matrix/notify.py
+++ b/homeassistant/components/matrix/notify.py
@@ -13,7 +13,7 @@ _LOGGER = logging.getLogger(__name__)
 CONF_DEFAULT_ROOM = 'default_room'
 
 DOMAIN = 'matrix'
-
+DEPENDENCIES = [DOMAIN]
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_DEFAULT_ROOM): cv.string,
diff --git a/homeassistant/components/maxcube/__init__.py b/homeassistant/components/maxcube/__init__.py
index c485f552360..c398ccbde4f 100644
--- a/homeassistant/components/maxcube/__init__.py
+++ b/homeassistant/components/maxcube/__init__.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import load_platform
 from homeassistant.const import CONF_HOST, CONF_PORT, CONF_SCAN_INTERVAL
 
-
+REQUIREMENTS = ['maxcube-api==0.1.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/media_extractor/__init__.py b/homeassistant/components/media_extractor/__init__.py
index dbc12811839..f44075816af 100644
--- a/homeassistant/components/media_extractor/__init__.py
+++ b/homeassistant/components/media_extractor/__init__.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
     ATTR_ENTITY_ID)
 from homeassistant.helpers import config_validation as cv
 
-
+REQUIREMENTS = ['youtube_dl==2019.04.07']
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -20,7 +20,7 @@ CONF_CUSTOMIZE_ENTITIES = 'customize'
 CONF_DEFAULT_STREAM_QUERY = 'default_query'
 
 DEFAULT_STREAM_QUERY = 'best'
-
+DEPENDENCIES = ['media_player']
 DOMAIN = 'media_extractor'
 
 CONFIG_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/media_player/__init__.py b/homeassistant/components/media_player/__init__.py
index 454bad1a17d..5bc2d640e2b 100644
--- a/homeassistant/components/media_player/__init__.py
+++ b/homeassistant/components/media_player/__init__.py
@@ -51,7 +51,7 @@ from .reproduce_state import async_reproduce_states  # noqa
 _LOGGER = logging.getLogger(__name__)
 _RND = SystemRandom()
 
-
+DEPENDENCIES = ['http']
 
 ENTITY_ID_FORMAT = DOMAIN + '.{}'
 
diff --git a/homeassistant/components/mediaroom/media_player.py b/homeassistant/components/mediaroom/media_player.py
index 42b6afc00f3..acbc0462722 100644
--- a/homeassistant/components/mediaroom/media_player.py
+++ b/homeassistant/components/mediaroom/media_player.py
@@ -19,7 +19,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import (
     async_dispatcher_connect, dispatcher_send)
 
-
+REQUIREMENTS = ['pymediaroom==0.6.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/melissa/__init__.py b/homeassistant/components/melissa/__init__.py
index 5ebd6647623..2037caa11c3 100644
--- a/homeassistant/components/melissa/__init__.py
+++ b/homeassistant/components/melissa/__init__.py
@@ -7,7 +7,7 @@ from homeassistant.const import CONF_USERNAME, CONF_PASSWORD
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
 
-
+REQUIREMENTS = ["py-melissa-climate==2.0.0"]
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/melissa/climate.py b/homeassistant/components/melissa/climate.py
index 33530ce69d8..79d94a41991 100644
--- a/homeassistant/components/melissa/climate.py
+++ b/homeassistant/components/melissa/climate.py
@@ -13,7 +13,7 @@ from homeassistant.const import (
 
 from . import DATA_MELISSA
 
-
+DEPENDENCIES = ['melissa']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/meraki/device_tracker.py b/homeassistant/components/meraki/device_tracker.py
index b516f5e0d8a..d12aff1127a 100644
--- a/homeassistant/components/meraki/device_tracker.py
+++ b/homeassistant/components/meraki/device_tracker.py
@@ -18,7 +18,7 @@ from homeassistant.components.device_tracker import (
 
 CONF_VALIDATOR = 'validator'
 CONF_SECRET = 'secret'
-
+DEPENDENCIES = ['http']
 URL = '/api/meraki'
 VERSION = '2.0'
 
diff --git a/homeassistant/components/message_bird/notify.py b/homeassistant/components/message_bird/notify.py
index 45b7671a9c6..c801de34a9a 100644
--- a/homeassistant/components/message_bird/notify.py
+++ b/homeassistant/components/message_bird/notify.py
@@ -9,7 +9,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.components.notify import (ATTR_TARGET, PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-
+REQUIREMENTS = ['messagebird==1.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/met/weather.py b/homeassistant/components/met/weather.py
index 9a39722d741..6c9613ac5d2 100644
--- a/homeassistant/components/met/weather.py
+++ b/homeassistant/components/met/weather.py
@@ -13,7 +13,7 @@ from homeassistant.helpers.event import (
     async_call_later, async_track_utc_time_change)
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['pyMetno==0.4.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/meteo_france/__init__.py b/homeassistant/components/meteo_france/__init__.py
index ccf089e8eb0..e084cff3c79 100644
--- a/homeassistant/components/meteo_france/__init__.py
+++ b/homeassistant/components/meteo_france/__init__.py
@@ -9,7 +9,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import load_platform
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['meteofrance==0.3.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/metoffice/sensor.py b/homeassistant/components/metoffice/sensor.py
index d818b0bf8d5..6c4e91517da 100644
--- a/homeassistant/components/metoffice/sensor.py
+++ b/homeassistant/components/metoffice/sensor.py
@@ -14,7 +14,7 @@ from homeassistant.util import Throttle
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['datapoint==0.4.3']
 
 ATTR_LAST_UPDATE = 'last_update'
 ATTR_SENSOR_ID = 'sensor_id'
diff --git a/homeassistant/components/metoffice/weather.py b/homeassistant/components/metoffice/weather.py
index 3ddee31f19f..a67dcdcdbd6 100644
--- a/homeassistant/components/metoffice/weather.py
+++ b/homeassistant/components/metoffice/weather.py
@@ -10,7 +10,7 @@ from homeassistant.helpers import config_validation as cv
 
 from .sensor import ATTRIBUTION, CONDITION_CLASSES, MetOfficeCurrentData
 
-
+REQUIREMENTS = ['datapoint==0.4.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mfi/sensor.py b/homeassistant/components/mfi/sensor.py
index 29a471cd989..36f9d1a829c 100644
--- a/homeassistant/components/mfi/sensor.py
+++ b/homeassistant/components/mfi/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['mficlient==0.3.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mfi/switch.py b/homeassistant/components/mfi/switch.py
index 4c83d47309b..818081f7a2e 100644
--- a/homeassistant/components/mfi/switch.py
+++ b/homeassistant/components/mfi/switch.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
     CONF_VERIFY_SSL)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['mficlient==0.3.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mhz19/sensor.py b/homeassistant/components/mhz19/sensor.py
index 5f609f31406..3aa82950fa7 100644
--- a/homeassistant/components/mhz19/sensor.py
+++ b/homeassistant/components/mhz19/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.util.temperature import celsius_to_fahrenheit
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['pmsensor==0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/microsoft/tts.py b/homeassistant/components/microsoft/tts.py
index bd27a5580d5..9fe31ef495e 100644
--- a/homeassistant/components/microsoft/tts.py
+++ b/homeassistant/components/microsoft/tts.py
@@ -15,7 +15,7 @@ CONF_VOLUME = 'volume'
 CONF_PITCH = 'pitch'
 CONF_CONTOUR = 'contour'
 
-
+REQUIREMENTS = ["pycsspeechtts==1.0.2"]
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/microsoft_face/__init__.py b/homeassistant/components/microsoft_face/__init__.py
index 5cd977eb40e..9b3ee960fb2 100644
--- a/homeassistant/components/microsoft_face/__init__.py
+++ b/homeassistant/components/microsoft_face/__init__.py
@@ -25,7 +25,7 @@ CONF_AZURE_REGION = 'azure_region'
 
 DATA_MICROSOFT_FACE = 'microsoft_face'
 DEFAULT_TIMEOUT = 10
-
+DEPENDENCIES = ['camera']
 DOMAIN = 'microsoft_face'
 
 FACE_API_URL = "api.cognitive.microsoft.com/face/v1.0/{0}"
diff --git a/homeassistant/components/microsoft_face_detect/image_processing.py b/homeassistant/components/microsoft_face_detect/image_processing.py
index 411002afd77..91eae07e992 100644
--- a/homeassistant/components/microsoft_face_detect/image_processing.py
+++ b/homeassistant/components/microsoft_face_detect/image_processing.py
@@ -11,7 +11,7 @@ from homeassistant.core import split_entity_id
 from homeassistant.exceptions import HomeAssistantError
 import homeassistant.helpers.config_validation as cv
 
-
+DEPENDENCIES = ['microsoft_face']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/microsoft_face_identify/image_processing.py b/homeassistant/components/microsoft_face_identify/image_processing.py
index 2583ef5d79d..52baa3617e8 100644
--- a/homeassistant/components/microsoft_face_identify/image_processing.py
+++ b/homeassistant/components/microsoft_face_identify/image_processing.py
@@ -12,7 +12,7 @@ from homeassistant.core import split_entity_id
 from homeassistant.exceptions import HomeAssistantError
 import homeassistant.helpers.config_validation as cv
 
-
+DEPENDENCIES = ['microsoft_face']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/miflora/sensor.py b/homeassistant/components/miflora/sensor.py
index b544260aad8..04595b0daeb 100644
--- a/homeassistant/components/miflora/sensor.py
+++ b/homeassistant/components/miflora/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
     CONF_SCAN_INTERVAL, EVENT_HOMEASSISTANT_START)
 from homeassistant.core import callback
 
-
+REQUIREMENTS = ['miflora==0.4.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mikrotik/device_tracker.py b/homeassistant/components/mikrotik/device_tracker.py
index 3b8572a7958..7d376b431bb 100644
--- a/homeassistant/components/mikrotik/device_tracker.py
+++ b/homeassistant/components/mikrotik/device_tracker.py
@@ -11,7 +11,7 @@ from homeassistant.components.device_tracker import (
 from homeassistant.const import (
     CONF_HOST, CONF_PASSWORD, CONF_USERNAME, CONF_PORT, CONF_SSL, CONF_METHOD)
 
-
+REQUIREMENTS = ['librouteros==2.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mill/climate.py b/homeassistant/components/mill/climate.py
index 620f5bb8854..cb6d47a52b0 100644
--- a/homeassistant/components/mill/climate.py
+++ b/homeassistant/components/mill/climate.py
@@ -15,7 +15,7 @@ from homeassistant.const import (
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-
+REQUIREMENTS = ['millheater==0.3.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mitemp_bt/sensor.py b/homeassistant/components/mitemp_bt/sensor.py
index 3277eff8435..cea2c6a55db 100644
--- a/homeassistant/components/mitemp_bt/sensor.py
+++ b/homeassistant/components/mitemp_bt/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
 )
 
 
-
+REQUIREMENTS = ['mitemp_bt==0.0.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mobile_app/__init__.py b/homeassistant/components/mobile_app/__init__.py
index a6c207ad77c..a4ae78959cf 100644
--- a/homeassistant/components/mobile_app/__init__.py
+++ b/homeassistant/components/mobile_app/__init__.py
@@ -15,9 +15,9 @@ from .http_api import RegistrationsView
 from .webhook import handle_webhook
 from .websocket_api import register_websocket_handlers
 
+DEPENDENCIES = ['device_tracker', 'http', 'webhook']
 
-
-
+REQUIREMENTS = ['PyNaCl==1.3.0']
 
 
 async def async_setup(hass: HomeAssistantType, config: ConfigType):
diff --git a/homeassistant/components/mobile_app/binary_sensor.py b/homeassistant/components/mobile_app/binary_sensor.py
index 920d58f0aae..50943bb6504 100644
--- a/homeassistant/components/mobile_app/binary_sensor.py
+++ b/homeassistant/components/mobile_app/binary_sensor.py
@@ -13,7 +13,7 @@ from .const import (ATTR_SENSOR_STATE,
 
 from .entity import MobileAppEntity, sensor_id
 
-
+DEPENDENCIES = ['mobile_app']
 
 
 async def async_setup_entry(hass, config_entry, async_add_entities):
diff --git a/homeassistant/components/mobile_app/notify.py b/homeassistant/components/mobile_app/notify.py
index eb8df94253b..8d2ac1b97ec 100644
--- a/homeassistant/components/mobile_app/notify.py
+++ b/homeassistant/components/mobile_app/notify.py
@@ -22,7 +22,7 @@ from .const import (ATTR_APP_DATA, ATTR_APP_ID, ATTR_APP_VERSION,
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['mobile_app']
 
 
 def push_registrations(hass):
diff --git a/homeassistant/components/mobile_app/sensor.py b/homeassistant/components/mobile_app/sensor.py
index 3d516c05661..64ad69c5758 100644
--- a/homeassistant/components/mobile_app/sensor.py
+++ b/homeassistant/components/mobile_app/sensor.py
@@ -12,7 +12,7 @@ from .const import (ATTR_SENSOR_STATE,
 
 from .entity import MobileAppEntity, sensor_id
 
-
+DEPENDENCIES = ['mobile_app']
 
 
 async def async_setup_entry(hass, config_entry, async_add_entities):
diff --git a/homeassistant/components/mochad/__init__.py b/homeassistant/components/mochad/__init__.py
index 7b75ea5cbcf..e10adf693fe 100644
--- a/homeassistant/components/mochad/__init__.py
+++ b/homeassistant/components/mochad/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 from homeassistant.const import (CONF_HOST, CONF_PORT)
 
-
+REQUIREMENTS = ['pymochad==0.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mochad/light.py b/homeassistant/components/mochad/light.py
index 2b832b7edb8..d2e1a567d27 100644
--- a/homeassistant/components/mochad/light.py
+++ b/homeassistant/components/mochad/light.py
@@ -12,7 +12,7 @@ from homeassistant.helpers import config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['mochad']
 
 CONF_BRIGHTNESS_LEVELS = 'brightness_levels'
 
diff --git a/homeassistant/components/mochad/switch.py b/homeassistant/components/mochad/switch.py
index 28d570e6174..03fd2db07bf 100644
--- a/homeassistant/components/mochad/switch.py
+++ b/homeassistant/components/mochad/switch.py
@@ -11,7 +11,7 @@ from homeassistant.helpers import config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['mochad']
 
 
 PLATFORM_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/modbus/__init__.py b/homeassistant/components/modbus/__init__.py
index 536f7729fe7..0500a904cb9 100644
--- a/homeassistant/components/modbus/__init__.py
+++ b/homeassistant/components/modbus/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
     CONF_TYPE, EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pymodbus==1.5.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/modbus/binary_sensor.py b/homeassistant/components/modbus/binary_sensor.py
index 3358ea30656..0c10548452a 100644
--- a/homeassistant/components/modbus/binary_sensor.py
+++ b/homeassistant/components/modbus/binary_sensor.py
@@ -15,7 +15,7 @@ _LOGGER = logging.getLogger(__name__)
 CONF_COIL = 'coil'
 CONF_COILS = 'coils'
 
-
+DEPENDENCIES = ['modbus']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_COILS): [{
diff --git a/homeassistant/components/modbus/climate.py b/homeassistant/components/modbus/climate.py
index c11d6ffbce9..4d2b86903e7 100644
--- a/homeassistant/components/modbus/climate.py
+++ b/homeassistant/components/modbus/climate.py
@@ -22,7 +22,7 @@ CONF_PRECISION = 'precision'
 DATA_TYPE_INT = 'int'
 DATA_TYPE_UINT = 'uint'
 DATA_TYPE_FLOAT = 'float'
-
+DEPENDENCIES = ['modbus']
 
 SUPPORT_FLAGS = SUPPORT_TARGET_TEMPERATURE
 
diff --git a/homeassistant/components/modbus/sensor.py b/homeassistant/components/modbus/sensor.py
index c0ca00013a1..10e11a9a656 100644
--- a/homeassistant/components/modbus/sensor.py
+++ b/homeassistant/components/modbus/sensor.py
@@ -29,7 +29,7 @@ DATA_TYPE_FLOAT = 'float'
 DATA_TYPE_INT = 'int'
 DATA_TYPE_UINT = 'uint'
 
-
+DEPENDENCIES = ['modbus']
 
 REGISTER_TYPE_HOLDING = 'holding'
 REGISTER_TYPE_INPUT = 'input'
diff --git a/homeassistant/components/modbus/switch.py b/homeassistant/components/modbus/switch.py
index 73859c5ab26..69c5e3e4838 100644
--- a/homeassistant/components/modbus/switch.py
+++ b/homeassistant/components/modbus/switch.py
@@ -24,7 +24,7 @@ CONF_STATE_ON = 'state_on'
 CONF_VERIFY_REGISTER = 'verify_register'
 CONF_VERIFY_STATE = 'verify_state'
 
-
+DEPENDENCIES = ['modbus']
 
 REGISTER_TYPE_HOLDING = 'holding'
 REGISTER_TYPE_INPUT = 'input'
diff --git a/homeassistant/components/modem_callerid/sensor.py b/homeassistant/components/modem_callerid/sensor.py
index 82a9cc61230..b87f4840334 100644
--- a/homeassistant/components/modem_callerid/sensor.py
+++ b/homeassistant/components/modem_callerid/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['basicmodem==0.7']
 
 _LOGGER = logging.getLogger(__name__)
 DEFAULT_NAME = 'Modem CallerID'
diff --git a/homeassistant/components/monoprice/media_player.py b/homeassistant/components/monoprice/media_player.py
index 1d54175ded9..edffd6ac7ce 100644
--- a/homeassistant/components/monoprice/media_player.py
+++ b/homeassistant/components/monoprice/media_player.py
@@ -13,7 +13,7 @@ from homeassistant.const import (
     ATTR_ENTITY_ID, CONF_NAME, CONF_PORT, STATE_OFF, STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pymonoprice==0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mopar/__init__.py b/homeassistant/components/mopar/__init__.py
index 839751f1e58..4ee9f3219b4 100644
--- a/homeassistant/components/mopar/__init__.py
+++ b/homeassistant/components/mopar/__init__.py
@@ -18,7 +18,7 @@ from homeassistant.helpers.discovery import load_platform
 from homeassistant.helpers.dispatcher import dispatcher_send
 from homeassistant.helpers.event import track_time_interval
 
-
+REQUIREMENTS = ['motorparts==1.1.0']
 
 DOMAIN = 'mopar'
 DATA_UPDATED = '{}_data_updated'.format(DOMAIN)
diff --git a/homeassistant/components/mopar/lock.py b/homeassistant/components/mopar/lock.py
index 178161fbadb..aa2e0161813 100644
--- a/homeassistant/components/mopar/lock.py
+++ b/homeassistant/components/mopar/lock.py
@@ -7,7 +7,7 @@ from homeassistant.components.mopar import (
 )
 from homeassistant.const import STATE_LOCKED, STATE_UNLOCKED
 
-
+DEPENDENCIES = ['mopar']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mopar/sensor.py b/homeassistant/components/mopar/sensor.py
index dcd7a7770ae..0d6e5765fda 100644
--- a/homeassistant/components/mopar/sensor.py
+++ b/homeassistant/components/mopar/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity import Entity
 
-
+DEPENDENCIES = ['mopar']
 ICON = 'mdi:car'
 
 
diff --git a/homeassistant/components/mopar/switch.py b/homeassistant/components/mopar/switch.py
index 5e2f5419d00..352cdafbd41 100644
--- a/homeassistant/components/mopar/switch.py
+++ b/homeassistant/components/mopar/switch.py
@@ -5,7 +5,7 @@ from homeassistant.components.mopar import DOMAIN as MOPAR_DOMAIN
 from homeassistant.components.switch import SwitchDevice
 from homeassistant.const import STATE_ON, STATE_OFF
 
-
+DEPENDENCIES = ['mopar']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mpd/media_player.py b/homeassistant/components/mpd/media_player.py
index 9c118aa20d8..8cbc1406e0b 100644
--- a/homeassistant/components/mpd/media_player.py
+++ b/homeassistant/components/mpd/media_player.py
@@ -20,7 +20,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['python-mpd2==1.0.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mqtt/__init__.py b/homeassistant/components/mqtt/__init__.py
index f2c65aaff69..4f9ad990105 100644
--- a/homeassistant/components/mqtt/__init__.py
+++ b/homeassistant/components/mqtt/__init__.py
@@ -40,7 +40,7 @@ from .const import (
     CONF_BROKER, CONF_DISCOVERY, DEFAULT_DISCOVERY, CONF_STATE_TOPIC,
     ATTR_DISCOVERY_HASH)
 
-
+REQUIREMENTS = ['paho-mqtt==1.4.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mqtt/alarm_control_panel.py b/homeassistant/components/mqtt/alarm_control_panel.py
index 5d678b477ac..03a2ac8e388 100644
--- a/homeassistant/components/mqtt/alarm_control_panel.py
+++ b/homeassistant/components/mqtt/alarm_control_panel.py
@@ -37,7 +37,7 @@ DEFAULT_ARM_AWAY = 'ARM_AWAY'
 DEFAULT_ARM_HOME = 'ARM_HOME'
 DEFAULT_DISARM = 'DISARM'
 DEFAULT_NAME = 'MQTT Alarm'
-
+DEPENDENCIES = ['mqtt']
 
 PLATFORM_SCHEMA = mqtt.MQTT_BASE_PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_CODE): cv.string,
diff --git a/homeassistant/components/mqtt/binary_sensor.py b/homeassistant/components/mqtt/binary_sensor.py
index 2f8a6390b35..95daad9b262 100644
--- a/homeassistant/components/mqtt/binary_sensor.py
+++ b/homeassistant/components/mqtt/binary_sensor.py
@@ -29,7 +29,7 @@ DEFAULT_PAYLOAD_OFF = 'OFF'
 DEFAULT_PAYLOAD_ON = 'ON'
 DEFAULT_FORCE_UPDATE = False
 
-
+DEPENDENCIES = ['mqtt']
 
 PLATFORM_SCHEMA = mqtt.MQTT_RO_PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_DEVICE): mqtt.MQTT_ENTITY_DEVICE_INFO_SCHEMA,
diff --git a/homeassistant/components/mqtt/camera.py b/homeassistant/components/mqtt/camera.py
index 9d2dca1fee6..f651050b6c8 100644
--- a/homeassistant/components/mqtt/camera.py
+++ b/homeassistant/components/mqtt/camera.py
@@ -23,7 +23,7 @@ _LOGGER = logging.getLogger(__name__)
 CONF_TOPIC = 'topic'
 DEFAULT_NAME = 'MQTT Camera'
 
-
+DEPENDENCIES = ['mqtt']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
diff --git a/homeassistant/components/mqtt/climate.py b/homeassistant/components/mqtt/climate.py
index 48419307e57..17d32984bb5 100644
--- a/homeassistant/components/mqtt/climate.py
+++ b/homeassistant/components/mqtt/climate.py
@@ -31,7 +31,7 @@ from .discovery import MQTT_DISCOVERY_NEW, clear_discovery_hash
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['mqtt']
 
 DEFAULT_NAME = 'MQTT HVAC'
 
diff --git a/homeassistant/components/mqtt/cover.py b/homeassistant/components/mqtt/cover.py
index 6ab70e55fe7..5cb7300f0ef 100644
--- a/homeassistant/components/mqtt/cover.py
+++ b/homeassistant/components/mqtt/cover.py
@@ -25,7 +25,7 @@ from .discovery import MQTT_DISCOVERY_NEW, clear_discovery_hash
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['mqtt']
 
 CONF_GET_POSITION_TOPIC = 'position_topic'
 CONF_SET_POSITION_TEMPLATE = 'set_position_template'
diff --git a/homeassistant/components/mqtt/device_tracker.py b/homeassistant/components/mqtt/device_tracker.py
index 302d2af8ee8..659c6315b21 100644
--- a/homeassistant/components/mqtt/device_tracker.py
+++ b/homeassistant/components/mqtt/device_tracker.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 
 from . import CONF_QOS
 
-
+DEPENDENCIES = ['mqtt']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mqtt/fan.py b/homeassistant/components/mqtt/fan.py
index dddc9dcda5d..d86390ee31d 100644
--- a/homeassistant/components/mqtt/fan.py
+++ b/homeassistant/components/mqtt/fan.py
@@ -23,7 +23,7 @@ from .discovery import MQTT_DISCOVERY_NEW, clear_discovery_hash
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['mqtt']
 
 CONF_STATE_VALUE_TEMPLATE = 'state_value_template'
 CONF_SPEED_STATE_TOPIC = 'speed_state_topic'
diff --git a/homeassistant/components/mqtt/light/__init__.py b/homeassistant/components/mqtt/light/__init__.py
index e7b3e522a24..4ff6efb8643 100644
--- a/homeassistant/components/mqtt/light/__init__.py
+++ b/homeassistant/components/mqtt/light/__init__.py
@@ -17,7 +17,7 @@ from homeassistant.helpers.typing import HomeAssistantType, ConfigType
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['mqtt']
 
 CONF_SCHEMA = 'schema'
 
diff --git a/homeassistant/components/mqtt/light/schema_basic.py b/homeassistant/components/mqtt/light/schema_basic.py
index 1b6ea0f00c5..d5aa4480139 100644
--- a/homeassistant/components/mqtt/light/schema_basic.py
+++ b/homeassistant/components/mqtt/light/schema_basic.py
@@ -30,7 +30,7 @@ from . import MQTT_LIGHT_SCHEMA_SCHEMA
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['mqtt']
 
 CONF_BRIGHTNESS_COMMAND_TOPIC = 'brightness_command_topic'
 CONF_BRIGHTNESS_SCALE = 'brightness_scale'
diff --git a/homeassistant/components/mqtt/light/schema_json.py b/homeassistant/components/mqtt/light/schema_json.py
index 9638a3e181b..a52f3c58d0e 100644
--- a/homeassistant/components/mqtt/light/schema_json.py
+++ b/homeassistant/components/mqtt/light/schema_json.py
@@ -35,7 +35,7 @@ _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'mqtt_json'
 
-
+DEPENDENCIES = ['mqtt']
 
 DEFAULT_BRIGHTNESS = False
 DEFAULT_COLOR_TEMP = False
diff --git a/homeassistant/components/mqtt/light/schema_template.py b/homeassistant/components/mqtt/light/schema_template.py
index a1dbd196011..49cba082401 100644
--- a/homeassistant/components/mqtt/light/schema_template.py
+++ b/homeassistant/components/mqtt/light/schema_template.py
@@ -30,7 +30,7 @@ _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'mqtt_template'
 
-
+DEPENDENCIES = ['mqtt']
 
 DEFAULT_NAME = 'MQTT Template Light'
 DEFAULT_OPTIMISTIC = False
diff --git a/homeassistant/components/mqtt/lock.py b/homeassistant/components/mqtt/lock.py
index cc9f5d3753d..235eacc9454 100644
--- a/homeassistant/components/mqtt/lock.py
+++ b/homeassistant/components/mqtt/lock.py
@@ -27,7 +27,7 @@ DEFAULT_NAME = 'MQTT Lock'
 DEFAULT_OPTIMISTIC = False
 DEFAULT_PAYLOAD_LOCK = 'LOCK'
 DEFAULT_PAYLOAD_UNLOCK = 'UNLOCK'
-
+DEPENDENCIES = ['mqtt']
 
 PLATFORM_SCHEMA = mqtt.MQTT_RW_PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_DEVICE): mqtt.MQTT_ENTITY_DEVICE_INFO_SCHEMA,
diff --git a/homeassistant/components/mqtt/sensor.py b/homeassistant/components/mqtt/sensor.py
index c6702a9d423..b6419ea2c24 100644
--- a/homeassistant/components/mqtt/sensor.py
+++ b/homeassistant/components/mqtt/sensor.py
@@ -32,7 +32,7 @@ CONF_JSON_ATTRS = 'json_attributes'
 
 DEFAULT_NAME = 'MQTT Sensor'
 DEFAULT_FORCE_UPDATE = False
-
+DEPENDENCIES = ['mqtt']
 
 PLATFORM_SCHEMA = mqtt.MQTT_RO_PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_DEVICE): mqtt.MQTT_ENTITY_DEVICE_INFO_SCHEMA,
diff --git a/homeassistant/components/mqtt/server.py b/homeassistant/components/mqtt/server.py
index 39e17f90652..d7d36add517 100644
--- a/homeassistant/components/mqtt/server.py
+++ b/homeassistant/components/mqtt/server.py
@@ -8,11 +8,11 @@ import voluptuous as vol
 from homeassistant.const import EVENT_HOMEASSISTANT_STOP
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['hbmqtt==0.9.4']
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['http']
 
 # None allows custom config to be created through generate_config
 HBMQTT_CONFIG_SCHEMA = vol.Any(None, vol.Schema({
diff --git a/homeassistant/components/mqtt/switch.py b/homeassistant/components/mqtt/switch.py
index 319ecbecf8c..20d28b6496c 100644
--- a/homeassistant/components/mqtt/switch.py
+++ b/homeassistant/components/mqtt/switch.py
@@ -22,7 +22,7 @@ from .discovery import MQTT_DISCOVERY_NEW, clear_discovery_hash
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['mqtt']
 
 DEFAULT_NAME = 'MQTT Switch'
 DEFAULT_PAYLOAD_ON = 'ON'
diff --git a/homeassistant/components/mqtt/vacuum.py b/homeassistant/components/mqtt/vacuum.py
index c9d41770110..23a5e34b3ca 100644
--- a/homeassistant/components/mqtt/vacuum.py
+++ b/homeassistant/components/mqtt/vacuum.py
@@ -22,7 +22,7 @@ from .discovery import MQTT_DISCOVERY_NEW, clear_discovery_hash
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['mqtt']
 
 SERVICE_TO_STRING = {
     SUPPORT_TURN_ON: 'turn_on',
diff --git a/homeassistant/components/mqtt_eventstream/__init__.py b/homeassistant/components/mqtt_eventstream/__init__.py
index 329361e9b0d..fb6a94f1870 100644
--- a/homeassistant/components/mqtt_eventstream/__init__.py
+++ b/homeassistant/components/mqtt_eventstream/__init__.py
@@ -15,7 +15,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.json import JSONEncoder
 
 DOMAIN = 'mqtt_eventstream'
-
+DEPENDENCIES = ['mqtt']
 
 CONF_PUBLISH_TOPIC = 'publish_topic'
 CONF_SUBSCRIBE_TOPIC = 'subscribe_topic'
diff --git a/homeassistant/components/mqtt_json/device_tracker.py b/homeassistant/components/mqtt_json/device_tracker.py
index eac8f702b52..6059b26bcbd 100644
--- a/homeassistant/components/mqtt_json/device_tracker.py
+++ b/homeassistant/components/mqtt_json/device_tracker.py
@@ -13,7 +13,7 @@ from homeassistant.const import (
     CONF_DEVICES, ATTR_GPS_ACCURACY, ATTR_LATITUDE,
     ATTR_LONGITUDE, ATTR_BATTERY_LEVEL)
 
-
+DEPENDENCIES = ['mqtt']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mqtt_room/sensor.py b/homeassistant/components/mqtt_room/sensor.py
index d0b84b1a889..961769711a4 100644
--- a/homeassistant/components/mqtt_room/sensor.py
+++ b/homeassistant/components/mqtt_room/sensor.py
@@ -17,7 +17,7 @@ from homeassistant.util import dt, slugify
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['mqtt']
 
 ATTR_DEVICE_ID = 'device_id'
 ATTR_DISTANCE = 'distance'
diff --git a/homeassistant/components/mqtt_statestream/__init__.py b/homeassistant/components/mqtt_statestream/__init__.py
index 764ee46e57e..18a70bf75bb 100644
--- a/homeassistant/components/mqtt_statestream/__init__.py
+++ b/homeassistant/components/mqtt_statestream/__init__.py
@@ -16,7 +16,7 @@ CONF_BASE_TOPIC = 'base_topic'
 CONF_PUBLISH_ATTRIBUTES = 'publish_attributes'
 CONF_PUBLISH_TIMESTAMPS = 'publish_timestamps'
 
-
+DEPENDENCIES = ['mqtt']
 DOMAIN = 'mqtt_statestream'
 
 CONFIG_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/mvglive/sensor.py b/homeassistant/components/mvglive/sensor.py
index c96b729c1a7..978c9ad34eb 100644
--- a/homeassistant/components/mvglive/sensor.py
+++ b/homeassistant/components/mvglive/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
     CONF_NAME, ATTR_ATTRIBUTION)
 
-
+REQUIREMENTS = ['PyMVGLive==1.1.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mychevy/__init__.py b/homeassistant/components/mychevy/__init__.py
index 6fce266fe42..e6fd7f19c2a 100644
--- a/homeassistant/components/mychevy/__init__.py
+++ b/homeassistant/components/mychevy/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers import discovery
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['mychevy==1.2.0']
 
 DOMAIN = 'mychevy'
 UPDATE_TOPIC = DOMAIN
diff --git a/homeassistant/components/mycroft/__init__.py b/homeassistant/components/mycroft/__init__.py
index 1b78280907f..29f6383f686 100644
--- a/homeassistant/components/mycroft/__init__.py
+++ b/homeassistant/components/mycroft/__init__.py
@@ -7,7 +7,7 @@ from homeassistant.const import CONF_HOST
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['mycroftapi==2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mycroft/notify.py b/homeassistant/components/mycroft/notify.py
index 1583e52b628..d66be629f17 100644
--- a/homeassistant/components/mycroft/notify.py
+++ b/homeassistant/components/mycroft/notify.py
@@ -3,7 +3,7 @@ import logging
 
 from homeassistant.components.notify import BaseNotificationService
 
-
+DEPENDENCIES = ['mycroft']
 
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/myq/cover.py b/homeassistant/components/myq/cover.py
index 807bc212a54..5b926a183f7 100644
--- a/homeassistant/components/myq/cover.py
+++ b/homeassistant/components/myq/cover.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
 )
 from homeassistant.helpers import aiohttp_client, config_validation as cv
 
-
+REQUIREMENTS = ['pymyq==1.2.0']
 _LOGGER = logging.getLogger(__name__)
 
 MYQ_TO_HASS = {
diff --git a/homeassistant/components/mysensors/__init__.py b/homeassistant/components/mysensors/__init__.py
index 78c74a06d3e..7ca21ac582a 100644
--- a/homeassistant/components/mysensors/__init__.py
+++ b/homeassistant/components/mysensors/__init__.py
@@ -17,7 +17,7 @@ from .const import (
 from .device import get_mysensors_devices
 from .gateway import get_mysensors_gateway, setup_gateways, finish_setup
 
-
+REQUIREMENTS = ['pymysensors==0.18.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mystrom/binary_sensor.py b/homeassistant/components/mystrom/binary_sensor.py
index d178a00e1cb..42245dc4df3 100644
--- a/homeassistant/components/mystrom/binary_sensor.py
+++ b/homeassistant/components/mystrom/binary_sensor.py
@@ -7,7 +7,7 @@ from homeassistant.const import HTTP_UNPROCESSABLE_ENTITY
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['http']
 
 
 async def async_setup_platform(hass, config, async_add_entities,
diff --git a/homeassistant/components/mystrom/light.py b/homeassistant/components/mystrom/light.py
index bb5acd29ffa..f9b8dcd203b 100644
--- a/homeassistant/components/mystrom/light.py
+++ b/homeassistant/components/mystrom/light.py
@@ -10,7 +10,7 @@ from homeassistant.components.light import (
     ATTR_HS_COLOR)
 from homeassistant.const import CONF_HOST, CONF_MAC, CONF_NAME
 
-
+REQUIREMENTS = ['python-mystrom==0.5.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mystrom/switch.py b/homeassistant/components/mystrom/switch.py
index 480e96224d7..a25517eea91 100644
--- a/homeassistant/components/mystrom/switch.py
+++ b/homeassistant/components/mystrom/switch.py
@@ -7,7 +7,7 @@ from homeassistant.components.switch import (SwitchDevice, PLATFORM_SCHEMA)
 from homeassistant.const import (CONF_NAME, CONF_HOST)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['python-mystrom==0.5.0']
 
 DEFAULT_NAME = 'myStrom Switch'
 
diff --git a/homeassistant/components/mythicbeastsdns/__init__.py b/homeassistant/components/mythicbeastsdns/__init__.py
index 6143dbe53df..4db53bf0407 100644
--- a/homeassistant/components/mythicbeastsdns/__init__.py
+++ b/homeassistant/components/mythicbeastsdns/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.helpers.event import async_track_time_interval
 
-
+REQUIREMENTS = ['mbddns==0.1.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/n26/__init__.py b/homeassistant/components/n26/__init__.py
index 644ae84bae7..8f4ade9c87f 100644
--- a/homeassistant/components/n26/__init__.py
+++ b/homeassistant/components/n26/__init__.py
@@ -12,7 +12,7 @@ from homeassistant.util import Throttle
 
 from .const import DATA, DOMAIN
 
-
+REQUIREMENTS = ['n26==0.2.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/n26/sensor.py b/homeassistant/components/n26/sensor.py
index ef5f944ac18..682cd5dae68 100644
--- a/homeassistant/components/n26/sensor.py
+++ b/homeassistant/components/n26/sensor.py
@@ -8,7 +8,7 @@ from .const import DATA
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['n26']
 
 SCAN_INTERVAL = DEFAULT_SCAN_INTERVAL
 
diff --git a/homeassistant/components/n26/switch.py b/homeassistant/components/n26/switch.py
index f6b15c64c21..0e7455ea703 100644
--- a/homeassistant/components/n26/switch.py
+++ b/homeassistant/components/n26/switch.py
@@ -8,7 +8,7 @@ from .const import CARD_STATE_ACTIVE, CARD_STATE_BLOCKED, DATA
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['n26']
 
 SCAN_INTERVAL = DEFAULT_SCAN_INTERVAL
 
diff --git a/homeassistant/components/nad/media_player.py b/homeassistant/components/nad/media_player.py
index c841adadcd0..8c5a14a3524 100644
--- a/homeassistant/components/nad/media_player.py
+++ b/homeassistant/components/nad/media_player.py
@@ -11,7 +11,7 @@ from homeassistant.components.media_player.const import (
     SUPPORT_VOLUME_MUTE, SUPPORT_VOLUME_SET, SUPPORT_VOLUME_STEP)
 from homeassistant.const import CONF_NAME, STATE_OFF, STATE_ON, CONF_HOST
 
-
+REQUIREMENTS = ['nad_receiver==0.0.11']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/namecheapdns/__init__.py b/homeassistant/components/namecheapdns/__init__.py
index 4de7e5932fa..f86e7d18556 100644
--- a/homeassistant/components/namecheapdns/__init__.py
+++ b/homeassistant/components/namecheapdns/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_DOMAIN
 from homeassistant.helpers.event import async_track_time_interval
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-
+REQUIREMENTS = ['defusedxml==0.5.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nanoleaf/light.py b/homeassistant/components/nanoleaf/light.py
index 93fd8d0bbb7..60457e21f9a 100644
--- a/homeassistant/components/nanoleaf/light.py
+++ b/homeassistant/components/nanoleaf/light.py
@@ -15,7 +15,7 @@ from homeassistant.util.color import \
     color_temperature_mired_to_kelvin as mired_to_kelvin
 from homeassistant.util.json import load_json, save_json
 
-
+REQUIREMENTS = ['pynanoleaf==0.0.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/neato/__init__.py b/homeassistant/components/neato/__init__.py
index e03f5754d38..bb717b8d230 100644
--- a/homeassistant/components/neato/__init__.py
+++ b/homeassistant/components/neato/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
 from homeassistant.helpers import discovery
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['pybotvac==0.0.13']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/neato/camera.py b/homeassistant/components/neato/camera.py
index 19a681fe2c6..f8106c3e645 100644
--- a/homeassistant/components/neato/camera.py
+++ b/homeassistant/components/neato/camera.py
@@ -8,7 +8,7 @@ from . import NEATO_LOGIN, NEATO_MAP_DATA, NEATO_ROBOTS
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['neato']
 
 SCAN_INTERVAL = timedelta(minutes=10)
 
diff --git a/homeassistant/components/neato/switch.py b/homeassistant/components/neato/switch.py
index 68e6bd22875..ea60f9492e2 100644
--- a/homeassistant/components/neato/switch.py
+++ b/homeassistant/components/neato/switch.py
@@ -11,7 +11,7 @@ from . import NEATO_LOGIN, NEATO_ROBOTS
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['neato']
 
 SCAN_INTERVAL = timedelta(minutes=10)
 
diff --git a/homeassistant/components/neato/vacuum.py b/homeassistant/components/neato/vacuum.py
index e36403238c5..3575301ea97 100644
--- a/homeassistant/components/neato/vacuum.py
+++ b/homeassistant/components/neato/vacuum.py
@@ -21,7 +21,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['neato']
 
 SCAN_INTERVAL = timedelta(minutes=5)
 
diff --git a/homeassistant/components/nederlandse_spoorwegen/sensor.py b/homeassistant/components/nederlandse_spoorwegen/sensor.py
index 52442d7e6f5..224d16e4869 100644
--- a/homeassistant/components/nederlandse_spoorwegen/sensor.py
+++ b/homeassistant/components/nederlandse_spoorwegen/sensor.py
@@ -12,7 +12,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['nsapi==2.7.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nello/lock.py b/homeassistant/components/nello/lock.py
index ed8a36e9abb..efb7719e201 100644
--- a/homeassistant/components/nello/lock.py
+++ b/homeassistant/components/nello/lock.py
@@ -8,7 +8,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.components.lock import (LockDevice, PLATFORM_SCHEMA)
 from homeassistant.const import (CONF_PASSWORD, CONF_USERNAME)
 
-
+REQUIREMENTS = ['pynello==2.0.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ness_alarm/__init__.py b/homeassistant/components/ness_alarm/__init__.py
index aa9ca038177..97896f9aa3f 100644
--- a/homeassistant/components/ness_alarm/__init__.py
+++ b/homeassistant/components/ness_alarm/__init__.py
@@ -13,7 +13,7 @@ from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
 from homeassistant.helpers.dispatcher import async_dispatcher_send
 
-
+REQUIREMENTS = ['nessclient==0.9.15']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ness_alarm/alarm_control_panel.py b/homeassistant/components/ness_alarm/alarm_control_panel.py
index 5860f79215e..618297ef9a5 100644
--- a/homeassistant/components/ness_alarm/alarm_control_panel.py
+++ b/homeassistant/components/ness_alarm/alarm_control_panel.py
@@ -13,7 +13,7 @@ from . import DATA_NESS, SIGNAL_ARMING_STATE_CHANGED
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['ness_alarm']
 
 
 async def async_setup_platform(hass, config, async_add_entities,
diff --git a/homeassistant/components/ness_alarm/binary_sensor.py b/homeassistant/components/ness_alarm/binary_sensor.py
index 193275bfcdc..2bed9eb6404 100644
--- a/homeassistant/components/ness_alarm/binary_sensor.py
+++ b/homeassistant/components/ness_alarm/binary_sensor.py
@@ -9,7 +9,7 @@ from . import (
     CONF_ZONE_ID, CONF_ZONE_NAME, CONF_ZONE_TYPE, CONF_ZONES,
     SIGNAL_ZONE_CHANGED, ZoneChangedData)
 
-
+DEPENDENCIES = ['ness_alarm']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/nest/__init__.py b/homeassistant/components/nest/__init__.py
index 131fdf10173..21aaa2109a1 100644
--- a/homeassistant/components/nest/__init__.py
+++ b/homeassistant/components/nest/__init__.py
@@ -22,7 +22,7 @@ from homeassistant.helpers.entity import Entity
 from .const import DOMAIN
 from . import local_auth
 
-
+REQUIREMENTS = ['python-nest==4.1.0']
 
 _CONFIGURING = {}
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/nest/binary_sensor.py b/homeassistant/components/nest/binary_sensor.py
index 64e7716d0ff..aa56bfbf29d 100644
--- a/homeassistant/components/nest/binary_sensor.py
+++ b/homeassistant/components/nest/binary_sensor.py
@@ -10,7 +10,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['nest']
 
 BINARY_TYPES = {'online': 'connectivity'}
 
diff --git a/homeassistant/components/nest/camera.py b/homeassistant/components/nest/camera.py
index 7089bff85df..8b450e02b46 100644
--- a/homeassistant/components/nest/camera.py
+++ b/homeassistant/components/nest/camera.py
@@ -11,7 +11,7 @@ from homeassistant.util.dt import utcnow
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['nest']
 
 NEST_BRAND = 'Nest'
 
diff --git a/homeassistant/components/nest/climate.py b/homeassistant/components/nest/climate.py
index a72b3d8ba8b..cd9a7cb71b6 100644
--- a/homeassistant/components/nest/climate.py
+++ b/homeassistant/components/nest/climate.py
@@ -16,7 +16,7 @@ from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 from . import DATA_NEST, DOMAIN as NEST_DOMAIN, SIGNAL_NEST_UPDATE
 
-
+DEPENDENCIES = ['nest']
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/nest/sensor.py b/homeassistant/components/nest/sensor.py
index df0bb07a4b0..ecae83e303c 100644
--- a/homeassistant/components/nest/sensor.py
+++ b/homeassistant/components/nest/sensor.py
@@ -8,7 +8,7 @@ from homeassistant.const import (
 
 from . import CONF_SENSORS, DATA_NEST, DATA_NEST_CONFIG, NestSensorDevice
 
-
+DEPENDENCIES = ['nest']
 
 SENSOR_TYPES = ['humidity', 'operation_mode', 'hvac_state']
 
diff --git a/homeassistant/components/netatmo/__init__.py b/homeassistant/components/netatmo/__init__.py
index d6d76ecede6..2036e55b3a8 100644
--- a/homeassistant/components/netatmo/__init__.py
+++ b/homeassistant/components/netatmo/__init__.py
@@ -12,8 +12,8 @@ from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-
-
+REQUIREMENTS = ['pyatmo==1.9']
+DEPENDENCIES = ['webhook']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/netatmo/binary_sensor.py b/homeassistant/components/netatmo/binary_sensor.py
index 2e1feeb5c46..a11ce6bddf7 100644
--- a/homeassistant/components/netatmo/binary_sensor.py
+++ b/homeassistant/components/netatmo/binary_sensor.py
@@ -12,7 +12,7 @@ from . import CameraData
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['netatmo']
 
 # These are the available sensors mapped to binary_sensor class
 WELCOME_SENSOR_TYPES = {
diff --git a/homeassistant/components/netatmo/camera.py b/homeassistant/components/netatmo/camera.py
index 4a56586761e..6b80c3061b5 100644
--- a/homeassistant/components/netatmo/camera.py
+++ b/homeassistant/components/netatmo/camera.py
@@ -11,7 +11,7 @@ from homeassistant.helpers import config_validation as cv
 
 from . import CameraData
 
-
+DEPENDENCIES = ['netatmo']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/netatmo/climate.py b/homeassistant/components/netatmo/climate.py
index 348c47aa84b..d0537c5912b 100644
--- a/homeassistant/components/netatmo/climate.py
+++ b/homeassistant/components/netatmo/climate.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
     STATE_OFF, TEMP_CELSIUS, ATTR_TEMPERATURE, CONF_NAME)
 from homeassistant.util import Throttle
 
-
+DEPENDENCIES = ['netatmo']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/netatmo/sensor.py b/homeassistant/components/netatmo/sensor.py
index 67172a88b58..307b76ca434 100644
--- a/homeassistant/components/netatmo/sensor.py
+++ b/homeassistant/components/netatmo/sensor.py
@@ -17,7 +17,7 @@ _LOGGER = logging.getLogger(__name__)
 CONF_MODULES = 'modules'
 CONF_STATION = 'station'
 
-
+DEPENDENCIES = ['netatmo']
 
 # This is the NetAtmo data upload interval in seconds
 NETATMO_UPDATE_INTERVAL = 600
diff --git a/homeassistant/components/netatmo_public/sensor.py b/homeassistant/components/netatmo_public/sensor.py
index f464ef6a647..3480534436d 100644
--- a/homeassistant/components/netatmo_public/sensor.py
+++ b/homeassistant/components/netatmo_public/sensor.py
@@ -14,7 +14,7 @@ from homeassistant.util import Throttle
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['netatmo']
 
 CONF_AREAS = 'areas'
 CONF_LAT_NE = 'lat_ne'
diff --git a/homeassistant/components/netdata/sensor.py b/homeassistant/components/netdata/sensor.py
index 645ce35f6da..6d99722a416 100644
--- a/homeassistant/components/netdata/sensor.py
+++ b/homeassistant/components/netdata/sensor.py
@@ -13,7 +13,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['netdata==0.1.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/netgear/device_tracker.py b/homeassistant/components/netgear/device_tracker.py
index bde212257f1..ce8c2d6066d 100644
--- a/homeassistant/components/netgear/device_tracker.py
+++ b/homeassistant/components/netgear/device_tracker.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_PASSWORD, CONF_USERNAME, CONF_PORT, CONF_SSL,
     CONF_DEVICES, CONF_EXCLUDE)
 
-
+REQUIREMENTS = ['pynetgear==0.5.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/netgear_lte/__init__.py b/homeassistant/components/netgear_lte/__init__.py
index 4fddc122992..c0f248a3dd5 100644
--- a/homeassistant/components/netgear_lte/__init__.py
+++ b/homeassistant/components/netgear_lte/__init__.py
@@ -24,7 +24,7 @@ from homeassistant.helpers.event import async_track_time_interval
 
 from . import sensor_types
 
-
+REQUIREMENTS = ['eternalegypt==0.0.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/netgear_lte/binary_sensor.py b/homeassistant/components/netgear_lte/binary_sensor.py
index 86ae877e674..a26c8538ea5 100644
--- a/homeassistant/components/netgear_lte/binary_sensor.py
+++ b/homeassistant/components/netgear_lte/binary_sensor.py
@@ -7,7 +7,7 @@ from homeassistant.exceptions import PlatformNotReady
 from . import CONF_MONITORED_CONDITIONS, DATA_KEY, LTEEntity
 from .sensor_types import BINARY_SENSOR_CLASSES
 
-
+DEPENDENCIES = ['netgear_lte']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/netgear_lte/notify.py b/homeassistant/components/netgear_lte/notify.py
index 20d1c950f16..fba1a335ace 100644
--- a/homeassistant/components/netgear_lte/notify.py
+++ b/homeassistant/components/netgear_lte/notify.py
@@ -8,7 +8,7 @@ from homeassistant.components.notify import (
 
 from . import CONF_RECIPIENT, DATA_KEY
 
-
+DEPENDENCIES = ['netgear_lte']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/netgear_lte/sensor.py b/homeassistant/components/netgear_lte/sensor.py
index f05ba7edd36..238a5f9b72d 100644
--- a/homeassistant/components/netgear_lte/sensor.py
+++ b/homeassistant/components/netgear_lte/sensor.py
@@ -8,7 +8,7 @@ from . import CONF_MONITORED_CONDITIONS, DATA_KEY, LTEEntity
 from .sensor_types import (
     SENSOR_SMS, SENSOR_SMS_TOTAL, SENSOR_USAGE, SENSOR_UNITS)
 
-
+DEPENDENCIES = ['netgear_lte']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/netio/switch.py b/homeassistant/components/netio/switch.py
index 3bd630e8ace..27a7dfbd5e7 100644
--- a/homeassistant/components/netio/switch.py
+++ b/homeassistant/components/netio/switch.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
 from homeassistant.components.switch import (SwitchDevice, PLATFORM_SCHEMA)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pynetio==0.1.9.1']
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -25,7 +25,7 @@ CONF_OUTLETS = 'outlets'
 
 DEFAULT_PORT = 1234
 DEFAULT_USERNAME = 'admin'
-
+DEPENDENCIES = ['http']
 Device = namedtuple('device', ['netio', 'entities'])
 DEVICES = {}
 
diff --git a/homeassistant/components/neurio_energy/sensor.py b/homeassistant/components/neurio_energy/sensor.py
index 17287ee881b..9e12465c69b 100644
--- a/homeassistant/components/neurio_energy/sensor.py
+++ b/homeassistant/components/neurio_energy/sensor.py
@@ -13,7 +13,7 @@ from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['neurio==0.3.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/niko_home_control/light.py b/homeassistant/components/niko_home_control/light.py
index 5a0f35cb9de..00e8dc838a6 100644
--- a/homeassistant/components/niko_home_control/light.py
+++ b/homeassistant/components/niko_home_control/light.py
@@ -9,7 +9,7 @@ from homeassistant.const import CONF_HOST
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['niko-home-control==0.1.8']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nilu/air_quality.py b/homeassistant/components/nilu/air_quality.py
index b3bb83683e0..979d5736d6a 100644
--- a/homeassistant/components/nilu/air_quality.py
+++ b/homeassistant/components/nilu/air_quality.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['niluclient==0.1.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nissan_leaf/__init__.py b/homeassistant/components/nissan_leaf/__init__.py
index 024bbf7cc60..cb101c0a530 100644
--- a/homeassistant/components/nissan_leaf/__init__.py
+++ b/homeassistant/components/nissan_leaf/__init__.py
@@ -16,7 +16,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import async_track_point_in_utc_time
 from homeassistant.util.dt import utcnow
 
-
+REQUIREMENTS = ['pycarwings2==2.8']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nissan_leaf/binary_sensor.py b/homeassistant/components/nissan_leaf/binary_sensor.py
index e61a964eb77..5c71cf1fc51 100644
--- a/homeassistant/components/nissan_leaf/binary_sensor.py
+++ b/homeassistant/components/nissan_leaf/binary_sensor.py
@@ -7,7 +7,7 @@ from . import DATA_CHARGING, DATA_LEAF, DATA_PLUGGED_IN, LeafEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['nissan_leaf']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/nissan_leaf/device_tracker.py b/homeassistant/components/nissan_leaf/device_tracker.py
index 963b6e19e46..95f6fcdcaf1 100644
--- a/homeassistant/components/nissan_leaf/device_tracker.py
+++ b/homeassistant/components/nissan_leaf/device_tracker.py
@@ -8,7 +8,7 @@ from . import DATA_LEAF, DATA_LOCATION, SIGNAL_UPDATE_LEAF
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['nissan_leaf']
 
 ICON_CAR = "mdi:car"
 
diff --git a/homeassistant/components/nissan_leaf/sensor.py b/homeassistant/components/nissan_leaf/sensor.py
index 19de2360ae7..682f482b488 100644
--- a/homeassistant/components/nissan_leaf/sensor.py
+++ b/homeassistant/components/nissan_leaf/sensor.py
@@ -12,7 +12,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['nissan_leaf']
 
 ICON_RANGE = 'mdi:speedometer'
 
diff --git a/homeassistant/components/nissan_leaf/switch.py b/homeassistant/components/nissan_leaf/switch.py
index 0de5e14886e..e6d72103a6c 100644
--- a/homeassistant/components/nissan_leaf/switch.py
+++ b/homeassistant/components/nissan_leaf/switch.py
@@ -7,7 +7,7 @@ from . import DATA_CLIMATE, DATA_LEAF, LeafEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['nissan_leaf']
 
 
 def setup_platform(hass, config, add_devices, discovery_info=None):
diff --git a/homeassistant/components/nmap_tracker/device_tracker.py b/homeassistant/components/nmap_tracker/device_tracker.py
index a7d4969ecb0..e553d323b72 100644
--- a/homeassistant/components/nmap_tracker/device_tracker.py
+++ b/homeassistant/components/nmap_tracker/device_tracker.py
@@ -13,7 +13,7 @@ from homeassistant.components.device_tracker import (
     DOMAIN, PLATFORM_SCHEMA, DeviceScanner)
 from homeassistant.const import CONF_HOSTS
 
-
+REQUIREMENTS = ['python-nmap==0.6.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nmbs/sensor.py b/homeassistant/components/nmbs/sensor.py
index d628676d67f..034c37530b3 100644
--- a/homeassistant/components/nmbs/sensor.py
+++ b/homeassistant/components/nmbs/sensor.py
@@ -23,7 +23,7 @@ CONF_STATION_TO = 'station_to'
 CONF_STATION_LIVE = 'station_live'
 CONF_EXCLUDE_VIAS = 'exclude_vias'
 
-
+REQUIREMENTS = ["pyrail==0.0.3"]
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_STATION_FROM): cv.string,
diff --git a/homeassistant/components/noaa_tides/sensor.py b/homeassistant/components/noaa_tides/sensor.py
index 07c7cd92a0e..0c4bde94f57 100644
--- a/homeassistant/components/noaa_tides/sensor.py
+++ b/homeassistant/components/noaa_tides/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['py_noaa==0.3.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/norway_air/air_quality.py b/homeassistant/components/norway_air/air_quality.py
index f99d5271893..06ed68801f8 100644
--- a/homeassistant/components/norway_air/air_quality.py
+++ b/homeassistant/components/norway_air/air_quality.py
@@ -12,7 +12,7 @@ from homeassistant.const import (CONF_LATITUDE, CONF_LONGITUDE,
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
 
-
+REQUIREMENTS = ['pyMetno==0.4.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nsw_fuel_station/sensor.py b/homeassistant/components/nsw_fuel_station/sensor.py
index d78630c70e7..ce4337fc93a 100644
--- a/homeassistant/components/nsw_fuel_station/sensor.py
+++ b/homeassistant/components/nsw_fuel_station/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.const import ATTR_ATTRIBUTION
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['nsw-fuel-api-client==1.0.10']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nsw_rural_fire_service_feed/geo_location.py b/homeassistant/components/nsw_rural_fire_service_feed/geo_location.py
index 2e012eb7676..38491feb32f 100644
--- a/homeassistant/components/nsw_rural_fire_service_feed/geo_location.py
+++ b/homeassistant/components/nsw_rural_fire_service_feed/geo_location.py
@@ -16,7 +16,7 @@ from homeassistant.helpers.dispatcher import (
     async_dispatcher_connect, dispatcher_send)
 from homeassistant.helpers.event import track_time_interval
 
-
+REQUIREMENTS = ['geojson_client==0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nuheat/__init__.py b/homeassistant/components/nuheat/__init__.py
index 456ce3fb040..4ea37339ef3 100644
--- a/homeassistant/components/nuheat/__init__.py
+++ b/homeassistant/components/nuheat/__init__.py
@@ -7,7 +7,7 @@ from homeassistant.const import CONF_USERNAME, CONF_PASSWORD, CONF_DEVICES
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers import discovery
 
-
+REQUIREMENTS = ["nuheat==0.3.0"]
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nuheat/climate.py b/homeassistant/components/nuheat/climate.py
index 573dc12b3aa..32adc1d216f 100644
--- a/homeassistant/components/nuheat/climate.py
+++ b/homeassistant/components/nuheat/climate.py
@@ -15,7 +15,7 @@ from homeassistant.util import Throttle
 
 from . import DOMAIN as NUHEAT_DOMAIN
 
-
+DEPENDENCIES = ["nuheat"]
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nuki/lock.py b/homeassistant/components/nuki/lock.py
index 972e21f73bb..ef49d4b97dd 100644
--- a/homeassistant/components/nuki/lock.py
+++ b/homeassistant/components/nuki/lock.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.service import extract_entity_ids
 
-
+REQUIREMENTS = ['pynuki==1.3.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nut/sensor.py b/homeassistant/components/nut/sensor.py
index 9ddffc832ba..43ba06f70eb 100644
--- a/homeassistant/components/nut/sensor.py
+++ b/homeassistant/components/nut/sensor.py
@@ -14,7 +14,7 @@ from homeassistant.exceptions import PlatformNotReady
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['pynut2==2.1.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nx584/alarm_control_panel.py b/homeassistant/components/nx584/alarm_control_panel.py
index 5762e1c65a8..c5e1fede6fd 100644
--- a/homeassistant/components/nx584/alarm_control_panel.py
+++ b/homeassistant/components/nx584/alarm_control_panel.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
     STATE_ALARM_ARMED_HOME, STATE_ALARM_DISARMED, STATE_ALARM_TRIGGERED)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pynx584==0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nx584/binary_sensor.py b/homeassistant/components/nx584/binary_sensor.py
index b175e180af2..61f8fb801ea 100644
--- a/homeassistant/components/nx584/binary_sensor.py
+++ b/homeassistant/components/nx584/binary_sensor.py
@@ -11,7 +11,7 @@ from homeassistant.components.binary_sensor import (
 from homeassistant.const import (CONF_HOST, CONF_PORT)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pynx584==0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/oasa_telematics/sensor.py b/homeassistant/components/oasa_telematics/sensor.py
index 35f1d44e579..665f2f83f86 100644
--- a/homeassistant/components/oasa_telematics/sensor.py
+++ b/homeassistant/components/oasa_telematics/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import dt as dt_util
 
-
+REQUIREMENTS = ['oasatelematics==0.3']
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_STOP_ID = 'stop_id'
diff --git a/homeassistant/components/octoprint/binary_sensor.py b/homeassistant/components/octoprint/binary_sensor.py
index a048d8196b4..be3381f3bc8 100644
--- a/homeassistant/components/octoprint/binary_sensor.py
+++ b/homeassistant/components/octoprint/binary_sensor.py
@@ -9,7 +9,7 @@ from . import BINARY_SENSOR_TYPES, DOMAIN as COMPONENT_DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['octoprint']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/octoprint/sensor.py b/homeassistant/components/octoprint/sensor.py
index 2d8fc400a24..f07d88d11da 100644
--- a/homeassistant/components/octoprint/sensor.py
+++ b/homeassistant/components/octoprint/sensor.py
@@ -10,7 +10,7 @@ from . import DOMAIN as COMPONENT_DOMAIN, SENSOR_TYPES
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['octoprint']
 
 NOTIFICATION_ID = 'octoprint_notification'
 NOTIFICATION_TITLE = 'OctoPrint sensor setup error'
diff --git a/homeassistant/components/oem/climate.py b/homeassistant/components/oem/climate.py
index 72026a96c36..f1e03396b05 100644
--- a/homeassistant/components/oem/climate.py
+++ b/homeassistant/components/oem/climate.py
@@ -21,7 +21,7 @@ from homeassistant.const import (
     CONF_PORT, TEMP_CELSIUS, CONF_NAME)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['oemthermostat==1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ohmconnect/sensor.py b/homeassistant/components/ohmconnect/sensor.py
index 90c9a8ace69..1d870e4d15a 100644
--- a/homeassistant/components/ohmconnect/sensor.py
+++ b/homeassistant/components/ohmconnect/sensor.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['defusedxml==0.5.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/onboarding/__init__.py b/homeassistant/components/onboarding/__init__.py
index e3879dda8e2..f8885962ee7 100644
--- a/homeassistant/components/onboarding/__init__.py
+++ b/homeassistant/components/onboarding/__init__.py
@@ -4,7 +4,7 @@ from homeassistant.loader import bind_hass
 
 from .const import DOMAIN, STEP_USER, STEPS
 
-
+DEPENDENCIES = ['auth', 'http']
 
 STORAGE_KEY = DOMAIN
 STORAGE_VERSION = 1
diff --git a/homeassistant/components/onkyo/media_player.py b/homeassistant/components/onkyo/media_player.py
index 7765b3fb5d7..64b9684c58c 100644
--- a/homeassistant/components/onkyo/media_player.py
+++ b/homeassistant/components/onkyo/media_player.py
@@ -16,7 +16,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_NAME, STATE_OFF, STATE_ON, ATTR_ENTITY_ID)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['onkyo-eiscp==1.2.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/onvif/camera.py b/homeassistant/components/onvif/camera.py
index 1d96d15e2ab..90222b9cafc 100644
--- a/homeassistant/components/onvif/camera.py
+++ b/homeassistant/components/onvif/camera.py
@@ -23,7 +23,7 @@ _LOGGER = logging.getLogger(__name__)
 REQUIREMENTS = ['onvif-py3==0.1.3',
                 'suds-py3==1.3.3.0',
                 'suds-passworddigest-homeassistant==0.1.2a0.dev0']
-
+DEPENDENCIES = ['ffmpeg']
 DEFAULT_NAME = 'ONVIF Camera'
 DEFAULT_PORT = 5000
 DEFAULT_USERNAME = 'admin'
diff --git a/homeassistant/components/opencv/image_processing.py b/homeassistant/components/opencv/image_processing.py
index 5dde6d0af3f..10173cdb725 100644
--- a/homeassistant/components/opencv/image_processing.py
+++ b/homeassistant/components/opencv/image_processing.py
@@ -11,7 +11,7 @@ from homeassistant.components.image_processing import (
 from homeassistant.core import split_entity_id
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['numpy==1.16.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/openevse/sensor.py b/homeassistant/components/openevse/sensor.py
index 772df87cd8e..e54b47236c5 100644
--- a/homeassistant/components/openevse/sensor.py
+++ b/homeassistant/components/openevse/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
     CONF_MONITORED_VARIABLES)
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['openevsewifi==0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/openhome/media_player.py b/homeassistant/components/openhome/media_player.py
index bed651408d9..03926bce8c5 100644
--- a/homeassistant/components/openhome/media_player.py
+++ b/homeassistant/components/openhome/media_player.py
@@ -10,7 +10,7 @@ from homeassistant.components.media_player.const import (
 from homeassistant.const import (
     STATE_IDLE, STATE_OFF, STATE_PAUSED, STATE_PLAYING)
 
-
+REQUIREMENTS = ['openhomedevice==0.4.2']
 
 SUPPORT_OPENHOME = SUPPORT_SELECT_SOURCE | \
     SUPPORT_VOLUME_STEP | SUPPORT_VOLUME_MUTE | SUPPORT_VOLUME_SET | \
diff --git a/homeassistant/components/opensensemap/air_quality.py b/homeassistant/components/opensensemap/air_quality.py
index 57deb9676ed..5407f65a1d8 100644
--- a/homeassistant/components/opensensemap/air_quality.py
+++ b/homeassistant/components/opensensemap/air_quality.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['opensensemap-api==0.1.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/opentherm_gw/__init__.py b/homeassistant/components/opentherm_gw/__init__.py
index 1abd07d47ec..1476363c6bd 100644
--- a/homeassistant/components/opentherm_gw/__init__.py
+++ b/homeassistant/components/opentherm_gw/__init__.py
@@ -15,7 +15,7 @@ from homeassistant.helpers.dispatcher import async_dispatcher_send
 
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pyotgw==0.4b3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/opentherm_gw/binary_sensor.py b/homeassistant/components/opentherm_gw/binary_sensor.py
index 2df8207a045..d0b60a25770 100644
--- a/homeassistant/components/opentherm_gw/binary_sensor.py
+++ b/homeassistant/components/opentherm_gw/binary_sensor.py
@@ -14,7 +14,7 @@ DEVICE_CLASS_COLD = 'cold'
 DEVICE_CLASS_HEAT = 'heat'
 DEVICE_CLASS_PROBLEM = 'problem'
 
-
+DEPENDENCIES = ['opentherm_gw']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/opentherm_gw/climate.py b/homeassistant/components/opentherm_gw/climate.py
index 6cf0b86a3cb..60f1901d43e 100644
--- a/homeassistant/components/opentherm_gw/climate.py
+++ b/homeassistant/components/opentherm_gw/climate.py
@@ -15,7 +15,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['opentherm_gw']
 
 SUPPORT_FLAGS = SUPPORT_TARGET_TEMPERATURE
 
diff --git a/homeassistant/components/opentherm_gw/sensor.py b/homeassistant/components/opentherm_gw/sensor.py
index fa06f362977..5c64b8ab719 100644
--- a/homeassistant/components/opentherm_gw/sensor.py
+++ b/homeassistant/components/opentherm_gw/sensor.py
@@ -16,7 +16,7 @@ UNIT_KW = 'kW'
 UNIT_L_MIN = 'L/min'
 UNIT_PERCENT = '%'
 
-
+DEPENDENCIES = ['opentherm_gw']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/openuv/__init__.py b/homeassistant/components/openuv/__init__.py
index 470ffe260f4..5533beb2fae 100644
--- a/homeassistant/components/openuv/__init__.py
+++ b/homeassistant/components/openuv/__init__.py
@@ -15,7 +15,7 @@ from homeassistant.helpers.entity import Entity
 from .config_flow import configured_instances
 from .const import DOMAIN
 
-
+REQUIREMENTS = ['pyopenuv==1.0.9']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/openuv/binary_sensor.py b/homeassistant/components/openuv/binary_sensor.py
index f51286a9704..cfc82a75729 100644
--- a/homeassistant/components/openuv/binary_sensor.py
+++ b/homeassistant/components/openuv/binary_sensor.py
@@ -16,7 +16,7 @@ ATTR_PROTECTION_WINDOW_ENDING_UV = 'end_uv'
 ATTR_PROTECTION_WINDOW_STARTING_TIME = 'start_time'
 ATTR_PROTECTION_WINDOW_STARTING_UV = 'start_uv'
 
-
+DEPENDENCIES = ['openuv']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/openuv/sensor.py b/homeassistant/components/openuv/sensor.py
index 4473f3bcc8a..42780d57b3c 100644
--- a/homeassistant/components/openuv/sensor.py
+++ b/homeassistant/components/openuv/sensor.py
@@ -14,7 +14,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['openuv']
 
 ATTR_MAX_UV_TIME = 'time'
 
diff --git a/homeassistant/components/openweathermap/sensor.py b/homeassistant/components/openweathermap/sensor.py
index 6ff83572bf5..5de67721e30 100644
--- a/homeassistant/components/openweathermap/sensor.py
+++ b/homeassistant/components/openweathermap/sensor.py
@@ -12,7 +12,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['pyowm==2.10.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/openweathermap/weather.py b/homeassistant/components/openweathermap/weather.py
index 112cf8821b1..8a37bc97575 100644
--- a/homeassistant/components/openweathermap/weather.py
+++ b/homeassistant/components/openweathermap/weather.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 from homeassistant.util.pressure import convert as convert_pressure
-
+REQUIREMENTS = ['pyowm==2.10.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/opple/light.py b/homeassistant/components/opple/light.py
index 355bc786cc0..03e36dc179d 100644
--- a/homeassistant/components/opple/light.py
+++ b/homeassistant/components/opple/light.py
@@ -14,7 +14,7 @@ from homeassistant.util.color import \
 from homeassistant.util.color import \
     color_temperature_mired_to_kelvin as mired_to_kelvin
 
-
+REQUIREMENTS = ['pyoppleio==1.0.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/orvibo/switch.py b/homeassistant/components/orvibo/switch.py
index afc9a22a166..c77e24446ec 100644
--- a/homeassistant/components/orvibo/switch.py
+++ b/homeassistant/components/orvibo/switch.py
@@ -8,7 +8,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_NAME, CONF_SWITCHES, CONF_MAC, CONF_DISCOVERY)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['orvibo==1.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/osramlightify/light.py b/homeassistant/components/osramlightify/light.py
index 5cc2ed211e5..b880273fd1e 100644
--- a/homeassistant/components/osramlightify/light.py
+++ b/homeassistant/components/osramlightify/light.py
@@ -15,7 +15,7 @@ from homeassistant.const import CONF_HOST
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 
-
+REQUIREMENTS = ['lightify==1.0.7.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/otp/sensor.py b/homeassistant/components/otp/sensor.py
index 29bdcb13ef7..2ac4c519984 100644
--- a/homeassistant/components/otp/sensor.py
+++ b/homeassistant/components/otp/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (CONF_NAME, CONF_TOKEN)
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['pyotp==2.2.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/owlet/__init__.py b/homeassistant/components/owlet/__init__.py
index bafd3d15834..b7ad7ab9152 100644
--- a/homeassistant/components/owlet/__init__.py
+++ b/homeassistant/components/owlet/__init__.py
@@ -11,7 +11,7 @@ from .const import (
     SENSOR_BASE_STATION, SENSOR_HEART_RATE, SENSOR_MOVEMENT,
     SENSOR_OXYGEN_LEVEL)
 
-
+REQUIREMENTS = ['pyowlet==1.0.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/owntracks/__init__.py b/homeassistant/components/owntracks/__init__.py
index e45dc6ebab2..df6b815e4c5 100644
--- a/homeassistant/components/owntracks/__init__.py
+++ b/homeassistant/components/owntracks/__init__.py
@@ -16,12 +16,12 @@ from homeassistant.setup import async_when_setup
 
 from .config_flow import CONF_SECRET
 
-
+REQUIREMENTS = ['PyNaCl==1.3.0']
 
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'owntracks'
-
+DEPENDENCIES = ['webhook']
 
 CONF_MAX_GPS_ACCURACY = 'max_gps_accuracy'
 CONF_WAYPOINT_IMPORT = 'waypoints'
diff --git a/homeassistant/components/owntracks/device_tracker.py b/homeassistant/components/owntracks/device_tracker.py
index 213e7f3a69e..69ea723d84c 100644
--- a/homeassistant/components/owntracks/device_tracker.py
+++ b/homeassistant/components/owntracks/device_tracker.py
@@ -10,7 +10,7 @@ from homeassistant.util import decorator, slugify
 
 from . import DOMAIN as OT_DOMAIN
 
-
+DEPENDENCIES = ['owntracks']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/panasonic_bluray/media_player.py b/homeassistant/components/panasonic_bluray/media_player.py
index 40ecba61616..ebf71135d34 100644
--- a/homeassistant/components/panasonic_bluray/media_player.py
+++ b/homeassistant/components/panasonic_bluray/media_player.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util.dt import utcnow
 
-
+REQUIREMENTS = ['panacotta==0.1']
 
 DEFAULT_NAME = "Panasonic Blu-Ray"
 SCAN_INTERVAL = timedelta(seconds=30)
diff --git a/homeassistant/components/panasonic_viera/media_player.py b/homeassistant/components/panasonic_viera/media_player.py
index 7aea89e9d2a..324becd0bf7 100644
--- a/homeassistant/components/panasonic_viera/media_player.py
+++ b/homeassistant/components/panasonic_viera/media_player.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_MAC, CONF_NAME, CONF_PORT, STATE_OFF, STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['panasonic_viera==0.3.2', 'wakeonlan==1.1.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/pandora/media_player.py b/homeassistant/components/pandora/media_player.py
index 2fc7b3dd1ab..32cde430d0e 100644
--- a/homeassistant/components/pandora/media_player.py
+++ b/homeassistant/components/pandora/media_player.py
@@ -16,7 +16,7 @@ from homeassistant.const import (
     SERVICE_MEDIA_PLAY_PAUSE, SERVICE_VOLUME_DOWN, SERVICE_VOLUME_UP,
     STATE_IDLE, STATE_OFF, STATE_PAUSED, STATE_PLAYING)
 
-
+REQUIREMENTS = ['pexpect==4.6.0']
 _LOGGER = logging.getLogger(__name__)
 
 # SUPPORT_VOLUME_SET is close to available but we need volume up/down
diff --git a/homeassistant/components/panel_custom/__init__.py b/homeassistant/components/panel_custom/__init__.py
index 1a3d2aabba8..7fe2191f4c4 100644
--- a/homeassistant/components/panel_custom/__init__.py
+++ b/homeassistant/components/panel_custom/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.loader import bind_hass
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'panel_custom'
-
+DEPENDENCIES = ['frontend']
 
 CONF_COMPONENT_NAME = 'name'
 CONF_SIDEBAR_TITLE = 'sidebar_title'
diff --git a/homeassistant/components/panel_iframe/__init__.py b/homeassistant/components/panel_iframe/__init__.py
index bcc644f4bbe..9319dfcc6ad 100644
--- a/homeassistant/components/panel_iframe/__init__.py
+++ b/homeassistant/components/panel_iframe/__init__.py
@@ -4,7 +4,7 @@ import voluptuous as vol
 from homeassistant.const import CONF_ICON, CONF_URL
 import homeassistant.helpers.config_validation as cv
 
-
+DEPENDENCIES = ['frontend']
 
 DOMAIN = 'panel_iframe'
 
diff --git a/homeassistant/components/pencom/switch.py b/homeassistant/components/pencom/switch.py
index 27682060685..d2c73d70d96 100644
--- a/homeassistant/components/pencom/switch.py
+++ b/homeassistant/components/pencom/switch.py
@@ -12,7 +12,7 @@ from homeassistant.const import CONF_HOST, CONF_PORT, CONF_NAME
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pencompy==0.0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/philips_js/media_player.py b/homeassistant/components/philips_js/media_player.py
index 0ad581e8be1..f5eddff8d13 100644
--- a/homeassistant/components/philips_js/media_player.py
+++ b/homeassistant/components/philips_js/media_player.py
@@ -15,7 +15,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.script import Script
 
-
+REQUIREMENTS = ['ha-philipsjs==0.0.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/pi_hole/sensor.py b/homeassistant/components/pi_hole/sensor.py
index 41c0a4c448e..805e17ebdff 100644
--- a/homeassistant/components/pi_hole/sensor.py
+++ b/homeassistant/components/pi_hole/sensor.py
@@ -13,7 +13,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['hole==0.3.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/piglow/light.py b/homeassistant/components/piglow/light.py
index c2b0e12379e..dc3906b2002 100644
--- a/homeassistant/components/piglow/light.py
+++ b/homeassistant/components/piglow/light.py
@@ -11,7 +11,7 @@ from homeassistant.components.light import (
 from homeassistant.const import CONF_NAME
 import homeassistant.util.color as color_util
 
-
+REQUIREMENTS = ['piglow==1.2.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/pilight/__init__.py b/homeassistant/components/pilight/__init__.py
index 795c1dedeab..46be3b37204 100644
--- a/homeassistant/components/pilight/__init__.py
+++ b/homeassistant/components/pilight/__init__.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP, CONF_HOST, CONF_PORT,
     CONF_WHITELIST, CONF_PROTOCOL)
 
-
+REQUIREMENTS = ['pilight==0.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/pilight/binary_sensor.py b/homeassistant/components/pilight/binary_sensor.py
index 534479e991a..131a91b5fc3 100644
--- a/homeassistant/components/pilight/binary_sensor.py
+++ b/homeassistant/components/pilight/binary_sensor.py
@@ -26,7 +26,7 @@ CONF_VARIABLE = 'variable'
 CONF_RESET_DELAY_SEC = 'reset_delay_sec'
 
 DEFAULT_NAME = 'Pilight Binary Sensor'
-
+DEPENDENCIES = ['pilight']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_VARIABLE): cv.string,
diff --git a/homeassistant/components/pilight/sensor.py b/homeassistant/components/pilight/sensor.py
index 370f2191287..c36151c90dc 100644
--- a/homeassistant/components/pilight/sensor.py
+++ b/homeassistant/components/pilight/sensor.py
@@ -15,7 +15,7 @@ _LOGGER = logging.getLogger(__name__)
 CONF_VARIABLE = 'variable'
 
 DEFAULT_NAME = 'Pilight Sensor'
-
+DEPENDENCIES = ['pilight']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_VARIABLE): cv.string,
diff --git a/homeassistant/components/pilight/switch.py b/homeassistant/components/pilight/switch.py
index b993f644ecc..d645d8e3013 100644
--- a/homeassistant/components/pilight/switch.py
+++ b/homeassistant/components/pilight/switch.py
@@ -21,7 +21,7 @@ CONF_UNIT = 'unit'
 CONF_UNITCODE = 'unitcode'
 CONF_ECHO = 'echo'
 
-
+DEPENDENCIES = ['pilight']
 
 COMMAND_SCHEMA = vol.Schema({
     vol.Optional(CONF_PROTOCOL): cv.string,
diff --git a/homeassistant/components/pjlink/media_player.py b/homeassistant/components/pjlink/media_player.py
index 4aaf8b5f506..ad7bdc9e77c 100644
--- a/homeassistant/components/pjlink/media_player.py
+++ b/homeassistant/components/pjlink/media_player.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_NAME, CONF_PASSWORD, CONF_PORT, STATE_OFF, STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pypjlink2==1.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/plant/__init__.py b/homeassistant/components/plant/__init__.py
index f0755bede44..27324ad57a3 100644
--- a/homeassistant/components/plant/__init__.py
+++ b/homeassistant/components/plant/__init__.py
@@ -89,7 +89,7 @@ PLANT_SCHEMA = vol.Schema({
 })
 
 DOMAIN = 'plant'
-
+DEPENDENCIES = ['zone', 'group']
 
 GROUP_NAME_ALL_PLANTS = 'all plants'
 ENTITY_ID_ALL_PLANTS = group.ENTITY_ID_FORMAT.format('all_plants')
diff --git a/homeassistant/components/plex/media_player.py b/homeassistant/components/plex/media_player.py
index bd44819e4b8..f2af6836e3b 100644
--- a/homeassistant/components/plex/media_player.py
+++ b/homeassistant/components/plex/media_player.py
@@ -20,7 +20,7 @@ from homeassistant.helpers.event import track_utc_time_change
 from homeassistant.util import dt as dt_util
 from homeassistant.util.json import load_json, save_json
 
-
+REQUIREMENTS = ['plexapi==3.0.6']
 
 _CONFIGURING = {}
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/plex/sensor.py b/homeassistant/components/plex/sensor.py
index d2263c0d221..a3df6fdb41e 100644
--- a/homeassistant/components/plex/sensor.py
+++ b/homeassistant/components/plex/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['plexapi==3.0.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/plum_lightpad/__init__.py b/homeassistant/components/plum_lightpad/__init__.py
index 1aab1a1344b..5b99223d25a 100644
--- a/homeassistant/components/plum_lightpad/__init__.py
+++ b/homeassistant/components/plum_lightpad/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.helpers import discovery
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['plumlightpad==0.0.11']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/plum_lightpad/light.py b/homeassistant/components/plum_lightpad/light.py
index 57dc8dedecc..233539560f4 100644
--- a/homeassistant/components/plum_lightpad/light.py
+++ b/homeassistant/components/plum_lightpad/light.py
@@ -5,7 +5,7 @@ import homeassistant.util.color as color_util
 
 from . import PLUM_DATA
 
-
+DEPENDENCIES = ['plum_lightpad']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/pocketcasts/sensor.py b/homeassistant/components/pocketcasts/sensor.py
index 85ecfb176f7..f09e9012004 100644
--- a/homeassistant/components/pocketcasts/sensor.py
+++ b/homeassistant/components/pocketcasts/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (CONF_USERNAME, CONF_PASSWORD)
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['pocketcasts==0.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/point/__init__.py b/homeassistant/components/point/__init__.py
index b00be14ef54..dc839756469 100644
--- a/homeassistant/components/point/__init__.py
+++ b/homeassistant/components/point/__init__.py
@@ -20,11 +20,11 @@ from .const import (
     CONF_WEBHOOK_URL, DOMAIN, EVENT_RECEIVED, POINT_DISCOVERY_NEW,
     SCAN_INTERVAL, SIGNAL_UPDATE_ENTITY, SIGNAL_WEBHOOK)
 
-
+REQUIREMENTS = ['pypoint==1.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['webhook']
 
 CONF_CLIENT_ID = 'client_id'
 CONF_CLIENT_SECRET = 'client_secret'
diff --git a/homeassistant/components/pollen/sensor.py b/homeassistant/components/pollen/sensor.py
index 57d740371f2..3fc4d1fce3d 100644
--- a/homeassistant/components/pollen/sensor.py
+++ b/homeassistant/components/pollen/sensor.py
@@ -13,7 +13,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['numpy==1.16.2', 'pypollencom==2.2.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/postnl/sensor.py b/homeassistant/components/postnl/sensor.py
index 2aa6d3bf828..f9c8019cd31 100644
--- a/homeassistant/components/postnl/sensor.py
+++ b/homeassistant/components/postnl/sensor.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['postnl_api==1.0.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/prezzibenzina/sensor.py b/homeassistant/components/prezzibenzina/sensor.py
index e5b113a538d..525de7dad2f 100644
--- a/homeassistant/components/prezzibenzina/sensor.py
+++ b/homeassistant/components/prezzibenzina/sensor.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.config_validation import PLATFORM_SCHEMA
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['prezzibenzina-py==1.1.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/proliphix/climate.py b/homeassistant/components/proliphix/climate.py
index 0f0a9795d19..c165334201d 100644
--- a/homeassistant/components/proliphix/climate.py
+++ b/homeassistant/components/proliphix/climate.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
     ATTR_TEMPERATURE)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['proliphix==0.4.1']
 
 ATTR_FAN = 'fan'
 
diff --git a/homeassistant/components/prometheus/__init__.py b/homeassistant/components/prometheus/__init__.py
index 40e0e96d540..de0de8ae162 100644
--- a/homeassistant/components/prometheus/__init__.py
+++ b/homeassistant/components/prometheus/__init__.py
@@ -14,14 +14,14 @@ from homeassistant.helpers import entityfilter, state as state_helper
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util.temperature import fahrenheit_to_celsius
 
-
+REQUIREMENTS = ['prometheus_client==0.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
 API_ENDPOINT = '/api/prometheus'
 
 DOMAIN = 'prometheus'
-
+DEPENDENCIES = ['http']
 
 CONF_FILTER = 'filter'
 CONF_PROM_NAMESPACE = 'namespace'
diff --git a/homeassistant/components/proximity/__init__.py b/homeassistant/components/proximity/__init__.py
index 275094189a8..0a617bcec90 100644
--- a/homeassistant/components/proximity/__init__.py
+++ b/homeassistant/components/proximity/__init__.py
@@ -25,7 +25,7 @@ DEFAULT_DIST_TO_ZONE = 'not set'
 DEFAULT_NEAREST = 'not set'
 DEFAULT_PROXIMITY_ZONE = 'home'
 DEFAULT_TOLERANCE = 1
-
+DEPENDENCIES = ['zone', 'device_tracker']
 DOMAIN = 'proximity'
 
 UNITS = ['km', 'm', 'mi', 'ft']
diff --git a/homeassistant/components/proxy/camera.py b/homeassistant/components/proxy/camera.py
index 8cecbe996e0..fda2cdea60e 100644
--- a/homeassistant/components/proxy/camera.py
+++ b/homeassistant/components/proxy/camera.py
@@ -12,7 +12,7 @@ from homeassistant.helpers import config_validation as cv
 from homeassistant.util.async_ import run_coroutine_threadsafe
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['pillow==5.4.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ps4/__init__.py b/homeassistant/components/ps4/__init__.py
index 51915134a7b..191eb223707 100644
--- a/homeassistant/components/ps4/__init__.py
+++ b/homeassistant/components/ps4/__init__.py
@@ -9,7 +9,7 @@ from .const import DOMAIN  # noqa: pylint: disable=unused-import
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['pyps4-homeassistant==0.5.2']
 
 
 async def async_setup(hass, config):
diff --git a/homeassistant/components/ps4/media_player.py b/homeassistant/components/ps4/media_player.py
index 5619190651d..4dc4fa0a317 100644
--- a/homeassistant/components/ps4/media_player.py
+++ b/homeassistant/components/ps4/media_player.py
@@ -17,7 +17,7 @@ from homeassistant.util.json import load_json, save_json
 
 from .const import DOMAIN as PS4_DOMAIN, REGIONS as deprecated_regions
 
-
+DEPENDENCIES = ['ps4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/push/camera.py b/homeassistant/components/push/camera.py
index 341ee10b0be..c0424f15898 100644
--- a/homeassistant/components/push/camera.py
+++ b/homeassistant/components/push/camera.py
@@ -17,7 +17,7 @@ from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.event import async_track_point_in_utc_time
 import homeassistant.util.dt as dt_util
 
-
+DEPENDENCIES = ['webhook']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/pushbullet/notify.py b/homeassistant/components/pushbullet/notify.py
index 4a50435b607..3fc90161ae0 100644
--- a/homeassistant/components/pushbullet/notify.py
+++ b/homeassistant/components/pushbullet/notify.py
@@ -11,7 +11,7 @@ from homeassistant.components.notify import (
     ATTR_DATA, ATTR_TARGET, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
     BaseNotificationService)
 
-
+REQUIREMENTS = ['pushbullet.py==0.11.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/pushbullet/sensor.py b/homeassistant/components/pushbullet/sensor.py
index efd949ace69..c90f952e7de 100644
--- a/homeassistant/components/pushbullet/sensor.py
+++ b/homeassistant/components/pushbullet/sensor.py
@@ -8,7 +8,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['pushbullet.py==0.11.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/pushetta/notify.py b/homeassistant/components/pushetta/notify.py
index e896eba9a5a..028b0cfd492 100644
--- a/homeassistant/components/pushetta/notify.py
+++ b/homeassistant/components/pushetta/notify.py
@@ -10,7 +10,7 @@ from homeassistant.components.notify import (
     ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 
 _LOGGER = logging.getLogger(__name__)
-
+REQUIREMENTS = ['pushetta==1.0.15']
 
 
 CONF_CHANNEL_NAME = 'channel_name'
diff --git a/homeassistant/components/pushover/notify.py b/homeassistant/components/pushover/notify.py
index 7b9b46d07bd..39a1ce5d2f7 100644
--- a/homeassistant/components/pushover/notify.py
+++ b/homeassistant/components/pushover/notify.py
@@ -10,7 +10,7 @@ from homeassistant.components.notify import (
     ATTR_DATA, ATTR_TARGET, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
     BaseNotificationService)
 
-
+REQUIREMENTS = ['python-pushover==0.3']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/python_script/__init__.py b/homeassistant/components/python_script/__init__.py
index 3dd7d0ffa9d..56a82b39120 100644
--- a/homeassistant/components/python_script/__init__.py
+++ b/homeassistant/components/python_script/__init__.py
@@ -13,7 +13,7 @@ from homeassistant.loader import bind_hass
 from homeassistant.util import sanitize_filename
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['restrictedpython==4.0b8']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/qbittorrent/sensor.py b/homeassistant/components/qbittorrent/sensor.py
index 5dd5ecc8320..7e91c0ab276 100644
--- a/homeassistant/components/qbittorrent/sensor.py
+++ b/homeassistant/components/qbittorrent/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 from homeassistant.exceptions import PlatformNotReady
 
-
+REQUIREMENTS = ['python-qbittorrent==0.3.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/qnap/sensor.py b/homeassistant/components/qnap/sensor.py
index 7aa067825d0..e12f20c25b1 100644
--- a/homeassistant/components/qnap/sensor.py
+++ b/homeassistant/components/qnap/sensor.py
@@ -13,7 +13,7 @@ from homeassistant.util import Throttle
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['qnapstats==0.2.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/qrcode/image_processing.py b/homeassistant/components/qrcode/image_processing.py
index 0c384030206..46fa78cca7f 100644
--- a/homeassistant/components/qrcode/image_processing.py
+++ b/homeassistant/components/qrcode/image_processing.py
@@ -3,7 +3,7 @@ from homeassistant.core import split_entity_id
 from homeassistant.components.image_processing import (
     ImageProcessingEntity, CONF_SOURCE, CONF_ENTITY_ID, CONF_NAME)
 
-
+REQUIREMENTS = ['pyzbar==0.1.7', 'pillow==5.4.1']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/quantum_gateway/device_tracker.py b/homeassistant/components/quantum_gateway/device_tracker.py
index 163203dc01d..3472a4dbb97 100644
--- a/homeassistant/components/quantum_gateway/device_tracker.py
+++ b/homeassistant/components/quantum_gateway/device_tracker.py
@@ -9,7 +9,7 @@ from homeassistant.components.device_tracker import (DOMAIN, PLATFORM_SCHEMA,
 from homeassistant.const import (CONF_HOST, CONF_PASSWORD, CONF_SSL)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['quantum-gateway==0.0.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/qwikswitch/__init__.py b/homeassistant/components/qwikswitch/__init__.py
index 92f0ca4cc66..a6468595622 100644
--- a/homeassistant/components/qwikswitch/__init__.py
+++ b/homeassistant/components/qwikswitch/__init__.py
@@ -14,7 +14,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import load_platform
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['pyqwikswitch==0.93']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/qwikswitch/binary_sensor.py b/homeassistant/components/qwikswitch/binary_sensor.py
index d22af49ffca..a92c4d0b435 100644
--- a/homeassistant/components/qwikswitch/binary_sensor.py
+++ b/homeassistant/components/qwikswitch/binary_sensor.py
@@ -6,7 +6,7 @@ from homeassistant.core import callback
 
 from . import DOMAIN as QWIKSWITCH, QSEntity
 
-
+DEPENDENCIES = [QWIKSWITCH]
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/qwikswitch/light.py b/homeassistant/components/qwikswitch/light.py
index 007de993a34..cb4df24f978 100644
--- a/homeassistant/components/qwikswitch/light.py
+++ b/homeassistant/components/qwikswitch/light.py
@@ -3,7 +3,7 @@ from homeassistant.components.light import SUPPORT_BRIGHTNESS, Light
 
 from . import DOMAIN as QWIKSWITCH, QSToggleEntity
 
-
+DEPENDENCIES = [QWIKSWITCH]
 
 
 async def async_setup_platform(hass, _, add_entities, discovery_info=None):
diff --git a/homeassistant/components/qwikswitch/sensor.py b/homeassistant/components/qwikswitch/sensor.py
index 37808906295..8befce4f7e2 100644
--- a/homeassistant/components/qwikswitch/sensor.py
+++ b/homeassistant/components/qwikswitch/sensor.py
@@ -5,7 +5,7 @@ from homeassistant.core import callback
 
 from . import DOMAIN as QWIKSWITCH, QSEntity
 
-
+DEPENDENCIES = [QWIKSWITCH]
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/qwikswitch/switch.py b/homeassistant/components/qwikswitch/switch.py
index 78603352817..4ee5396ae0c 100644
--- a/homeassistant/components/qwikswitch/switch.py
+++ b/homeassistant/components/qwikswitch/switch.py
@@ -3,7 +3,7 @@ from homeassistant.components.switch import SwitchDevice
 
 from . import DOMAIN as QWIKSWITCH, QSToggleEntity
 
-
+DEPENDENCIES = [QWIKSWITCH]
 
 
 async def async_setup_platform(hass, _, add_entities, discovery_info=None):
diff --git a/homeassistant/components/rachio/__init__.py b/homeassistant/components/rachio/__init__.py
index 634e27c7d68..64a7a5af4d7 100644
--- a/homeassistant/components/rachio/__init__.py
+++ b/homeassistant/components/rachio/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.const import CONF_API_KEY, EVENT_HOMEASSISTANT_STOP, URL_API
 from homeassistant.helpers import discovery, config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_send
 
-
+REQUIREMENTS = ['rachiopy==0.1.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rachio/binary_sensor.py b/homeassistant/components/rachio/binary_sensor.py
index da90e998778..ffcaeccacff 100644
--- a/homeassistant/components/rachio/binary_sensor.py
+++ b/homeassistant/components/rachio/binary_sensor.py
@@ -10,7 +10,7 @@ from . import (
     SIGNAL_RACHIO_CONTROLLER_UPDATE, STATUS_OFFLINE, STATUS_ONLINE,
     SUBTYPE_OFFLINE, SUBTYPE_ONLINE)
 
-
+DEPENDENCIES = ['rachio']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rachio/switch.py b/homeassistant/components/rachio/switch.py
index 7222cbc353e..483e07e96f4 100644
--- a/homeassistant/components/rachio/switch.py
+++ b/homeassistant/components/rachio/switch.py
@@ -13,7 +13,7 @@ from . import (
     SIGNAL_RACHIO_ZONE_UPDATE, SUBTYPE_SLEEP_MODE_OFF, SUBTYPE_SLEEP_MODE_ON,
     SUBTYPE_ZONE_COMPLETED, SUBTYPE_ZONE_STARTED, SUBTYPE_ZONE_STOPPED)
 
-
+DEPENDENCIES = ['rachio']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/radiotherm/climate.py b/homeassistant/components/radiotherm/climate.py
index c8972457dd6..66dfc4cc385 100644
--- a/homeassistant/components/radiotherm/climate.py
+++ b/homeassistant/components/radiotherm/climate.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
     STATE_OFF)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['radiotherm==2.0.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rainbird/__init__.py b/homeassistant/components/rainbird/__init__.py
index 60ed1d08b3c..de0f42fda4a 100644
--- a/homeassistant/components/rainbird/__init__.py
+++ b/homeassistant/components/rainbird/__init__.py
@@ -6,7 +6,7 @@ import voluptuous as vol
 import homeassistant.helpers.config_validation as cv
 from homeassistant.const import (CONF_HOST, CONF_PASSWORD)
 
-
+REQUIREMENTS = ['pyrainbird==0.1.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rainbird/sensor.py b/homeassistant/components/rainbird/sensor.py
index dc118c99b1b..0cee202ecb2 100644
--- a/homeassistant/components/rainbird/sensor.py
+++ b/homeassistant/components/rainbird/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.helpers.entity import Entity
 
 from . import DATA_RAINBIRD
 
-
+DEPENDENCIES = ['rainbird']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rainbird/switch.py b/homeassistant/components/rainbird/switch.py
index 31dec0723b0..32c7c49ab99 100644
--- a/homeassistant/components/rainbird/switch.py
+++ b/homeassistant/components/rainbird/switch.py
@@ -12,7 +12,7 @@ from homeassistant.helpers import config_validation as cv
 
 from . import DATA_RAINBIRD
 
-
+DEPENDENCIES = ['rainbird']
 
 DOMAIN = 'rainbird'
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/raincloud/__init__.py b/homeassistant/components/raincloud/__init__.py
index 4bb63971fe9..c94315f673d 100644
--- a/homeassistant/components/raincloud/__init__.py
+++ b/homeassistant/components/raincloud/__init__.py
@@ -13,7 +13,7 @@ from homeassistant.helpers.dispatcher import (
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import track_time_interval
 
-
+REQUIREMENTS = ['raincloudy==0.0.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/raincloud/binary_sensor.py b/homeassistant/components/raincloud/binary_sensor.py
index 89f4b1007af..6ebad7cc121 100644
--- a/homeassistant/components/raincloud/binary_sensor.py
+++ b/homeassistant/components/raincloud/binary_sensor.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 
 from . import BINARY_SENSORS, DATA_RAINCLOUD, ICON_MAP, RainCloudEntity
 
-
+DEPENDENCIES = ['raincloud']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/raincloud/sensor.py b/homeassistant/components/raincloud/sensor.py
index 5f441f09979..6774d48ae99 100644
--- a/homeassistant/components/raincloud/sensor.py
+++ b/homeassistant/components/raincloud/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.helpers.icon import icon_for_battery_level
 
 from . import DATA_RAINCLOUD, ICON_MAP, SENSORS, RainCloudEntity
 
-
+DEPENDENCIES = ['raincloud']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/raincloud/switch.py b/homeassistant/components/raincloud/switch.py
index 8b5ebd1724c..3901e1e0bd8 100644
--- a/homeassistant/components/raincloud/switch.py
+++ b/homeassistant/components/raincloud/switch.py
@@ -11,7 +11,7 @@ from . import (
     ALLOWED_WATERING_TIME, ATTRIBUTION, CONF_WATERING_TIME, DATA_RAINCLOUD,
     DEFAULT_WATERING_TIME, SWITCHES, RainCloudEntity)
 
-
+DEPENDENCIES = ['raincloud']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rainmachine/__init__.py b/homeassistant/components/rainmachine/__init__.py
index b1b0f407368..2ff5ddcd4aa 100644
--- a/homeassistant/components/rainmachine/__init__.py
+++ b/homeassistant/components/rainmachine/__init__.py
@@ -22,7 +22,7 @@ from .config_flow import configured_instances
 from .const import (
     DATA_CLIENT, DEFAULT_PORT, DEFAULT_SCAN_INTERVAL, DEFAULT_SSL, DOMAIN)
 
-
+REQUIREMENTS = ['regenmaschine==1.4.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rainmachine/binary_sensor.py b/homeassistant/components/rainmachine/binary_sensor.py
index 198adb6b052..4387e6b67be 100644
--- a/homeassistant/components/rainmachine/binary_sensor.py
+++ b/homeassistant/components/rainmachine/binary_sensor.py
@@ -11,7 +11,7 @@ from . import (
     TYPE_HOURLY, TYPE_MONTH, TYPE_RAINDELAY, TYPE_RAINSENSOR, TYPE_WEEKDAY,
     RainMachineEntity)
 
-
+DEPENDENCIES = ['rainmachine']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/rainmachine/sensor.py b/homeassistant/components/rainmachine/sensor.py
index 86ff7eb7f3d..1d438b8035f 100644
--- a/homeassistant/components/rainmachine/sensor.py
+++ b/homeassistant/components/rainmachine/sensor.py
@@ -8,7 +8,7 @@ from . import (
     DATA_CLIENT, DOMAIN as RAINMACHINE_DOMAIN, SENSOR_UPDATE_TOPIC, SENSORS,
     RainMachineEntity)
 
-
+DEPENDENCIES = ['rainmachine']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/rainmachine/switch.py b/homeassistant/components/rainmachine/switch.py
index 270637c63a7..adcbe559819 100644
--- a/homeassistant/components/rainmachine/switch.py
+++ b/homeassistant/components/rainmachine/switch.py
@@ -12,7 +12,7 @@ from . import (
     DATA_CLIENT, DOMAIN as RAINMACHINE_DOMAIN, PROGRAM_UPDATE_TOPIC,
     ZONE_UPDATE_TOPIC, RainMachineEntity)
 
-
+DEPENDENCIES = ['rainmachine']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/raspihats/__init__.py b/homeassistant/components/raspihats/__init__.py
index 5ace719b83a..622b98223aa 100644
--- a/homeassistant/components/raspihats/__init__.py
+++ b/homeassistant/components/raspihats/__init__.py
@@ -6,7 +6,7 @@ import time
 from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 
-
+REQUIREMENTS = ['raspihats==2.2.3', 'smbus-cffi==0.5.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/raspihats/binary_sensor.py b/homeassistant/components/raspihats/binary_sensor.py
index d619521cf2a..29fa474f781 100644
--- a/homeassistant/components/raspihats/binary_sensor.py
+++ b/homeassistant/components/raspihats/binary_sensor.py
@@ -15,7 +15,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['raspihats']
 
 DEFAULT_INVERT_LOGIC = False
 DEFAULT_DEVICE_CLASS = None
diff --git a/homeassistant/components/raspihats/switch.py b/homeassistant/components/raspihats/switch.py
index 2e9512c5947..93538682ad8 100644
--- a/homeassistant/components/raspihats/switch.py
+++ b/homeassistant/components/raspihats/switch.py
@@ -14,7 +14,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['raspihats']
 
 _CHANNELS_SCHEMA = vol.Schema([{
     vol.Required(CONF_INDEX): cv.positive_int,
diff --git a/homeassistant/components/raspyrfm/switch.py b/homeassistant/components/raspyrfm/switch.py
index 864c6c27428..a141721f3e5 100644
--- a/homeassistant/components/raspyrfm/switch.py
+++ b/homeassistant/components/raspyrfm/switch.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
     DEVICE_DEFAULT_NAME)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['raspyrfm-client==1.2.8']
 _LOGGER = logging.getLogger(__name__)
 
 CONF_GATEWAY_MANUFACTURER = 'gateway_manufacturer'
diff --git a/homeassistant/components/recollect_waste/sensor.py b/homeassistant/components/recollect_waste/sensor.py
index 07874ab2990..1e3803ab866 100644
--- a/homeassistant/components/recollect_waste/sensor.py
+++ b/homeassistant/components/recollect_waste/sensor.py
@@ -8,7 +8,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (CONF_NAME)
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['recollect-waste==1.0.1']
 
 _LOGGER = logging.getLogger(__name__)
 ATTR_PICKUP_TYPES = 'pickup_types'
diff --git a/homeassistant/components/recorder/__init__.py b/homeassistant/components/recorder/__init__.py
index 5b6ad17ce8e..0df1fa42ad4 100644
--- a/homeassistant/components/recorder/__init__.py
+++ b/homeassistant/components/recorder/__init__.py
@@ -25,7 +25,7 @@ from . import migration, purge
 from .const import DATA_INSTANCE
 from .util import session_scope
 
-
+REQUIREMENTS = ['sqlalchemy==1.3.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/recswitch/switch.py b/homeassistant/components/recswitch/switch.py
index 5fdb72606ef..ed2da8022f8 100644
--- a/homeassistant/components/recswitch/switch.py
+++ b/homeassistant/components/recswitch/switch.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['pyrecswitch==1.0.2']
 
 DEFAULT_NAME = 'RecSwitch {0}'
 
diff --git a/homeassistant/components/reddit/sensor.py b/homeassistant/components/reddit/sensor.py
index 92e4e299d1b..3ba43196551 100644
--- a/homeassistant/components/reddit/sensor.py
+++ b/homeassistant/components/reddit/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.const import (CONF_USERNAME, CONF_PASSWORD, CONF_MAXIMUM)
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['praw==6.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rejseplanen/sensor.py b/homeassistant/components/rejseplanen/sensor.py
index e342c624bd8..7a8cddb6179 100755
--- a/homeassistant/components/rejseplanen/sensor.py
+++ b/homeassistant/components/rejseplanen/sensor.py
@@ -19,7 +19,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import CONF_NAME, ATTR_ATTRIBUTION
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['rjpl==0.3.5']
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_STOP_ID = 'Stop ID'
diff --git a/homeassistant/components/remember_the_milk/__init__.py b/homeassistant/components/remember_the_milk/__init__.py
index d85518cfb37..82619e35a0e 100644
--- a/homeassistant/components/remember_the_milk/__init__.py
+++ b/homeassistant/components/remember_the_milk/__init__.py
@@ -13,7 +13,7 @@ from homeassistant.helpers.entity_component import EntityComponent
 
 # httplib2 is a transitive dependency from RtmAPI. If this dependency is not
 # set explicitly, the library does not work.
-
+REQUIREMENTS = ['RtmAPI==0.7.0', 'httplib2==0.10.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/remote/__init__.py b/homeassistant/components/remote/__init__.py
index 6ef417c1e41..de79adc9f0e 100644
--- a/homeassistant/components/remote/__init__.py
+++ b/homeassistant/components/remote/__init__.py
@@ -26,7 +26,7 @@ ATTR_DELAY_SECS = 'delay_secs'
 ATTR_HOLD_SECS = 'hold_secs'
 
 DOMAIN = 'remote'
-
+DEPENDENCIES = ['group']
 SCAN_INTERVAL = timedelta(seconds=30)
 
 ENTITY_ID_ALL_REMOTES = group.ENTITY_ID_FORMAT.format('all_remotes')
diff --git a/homeassistant/components/rflink/__init__.py b/homeassistant/components/rflink/__init__.py
index 71af79bb95f..98e80580fea 100644
--- a/homeassistant/components/rflink/__init__.py
+++ b/homeassistant/components/rflink/__init__.py
@@ -18,7 +18,7 @@ from homeassistant.helpers.dispatcher import (
     async_dispatcher_send, async_dispatcher_connect)
 from homeassistant.helpers.restore_state import RestoreEntity
 
-
+REQUIREMENTS = ['rflink==0.0.37']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rflink/binary_sensor.py b/homeassistant/components/rflink/binary_sensor.py
index 5a25cebdbd9..4e487eb6e81 100644
--- a/homeassistant/components/rflink/binary_sensor.py
+++ b/homeassistant/components/rflink/binary_sensor.py
@@ -14,7 +14,7 @@ from . import CONF_ALIASES, CONF_DEVICES, RflinkDevice
 CONF_OFF_DELAY = 'off_delay'
 DEFAULT_FORCE_UPDATE = False
 
-
+DEPENDENCIES = ['rflink']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rflink/cover.py b/homeassistant/components/rflink/cover.py
index 821bd920b4e..409d27862f9 100644
--- a/homeassistant/components/rflink/cover.py
+++ b/homeassistant/components/rflink/cover.py
@@ -13,7 +13,7 @@ from . import (
     CONF_GROUP, CONF_GROUP_ALIASES, CONF_NOGROUP_ALIASES,
     CONF_SIGNAL_REPETITIONS, DEVICE_DEFAULTS_SCHEMA, RflinkCommand)
 
-
+DEPENDENCIES = ['rflink']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rflink/light.py b/homeassistant/components/rflink/light.py
index 434fc6a05e3..112ed4b4f51 100644
--- a/homeassistant/components/rflink/light.py
+++ b/homeassistant/components/rflink/light.py
@@ -15,7 +15,7 @@ from . import (
     CONF_SIGNAL_REPETITIONS, DATA_DEVICE_REGISTER, DEVICE_DEFAULTS_SCHEMA,
     EVENT_KEY_COMMAND, EVENT_KEY_ID, SwitchableRflinkDevice, remove_deprecated)
 
-
+DEPENDENCIES = ['rflink']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rflink/sensor.py b/homeassistant/components/rflink/sensor.py
index d11bf3415f5..c7498ece241 100644
--- a/homeassistant/components/rflink/sensor.py
+++ b/homeassistant/components/rflink/sensor.py
@@ -15,7 +15,7 @@ from . import (
     EVENT_KEY_UNIT, SIGNAL_AVAILABILITY, SIGNAL_HANDLE_EVENT, TMP_ENTITY,
     RflinkDevice, remove_deprecated)
 
-
+DEPENDENCIES = ['rflink']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rflink/switch.py b/homeassistant/components/rflink/switch.py
index 4a367f35a16..d5889c797f0 100644
--- a/homeassistant/components/rflink/switch.py
+++ b/homeassistant/components/rflink/switch.py
@@ -13,7 +13,7 @@ from . import (
     CONF_NOGROUP_ALIASES, CONF_NOGROUP_ALIASSES, CONF_SIGNAL_REPETITIONS,
     DEVICE_DEFAULTS_SCHEMA, SwitchableRflinkDevice, remove_deprecated)
 
-
+DEPENDENCIES = ['rflink']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rfxtrx/__init__.py b/homeassistant/components/rfxtrx/__init__.py
index 527f96156dd..411f0538bde 100644
--- a/homeassistant/components/rfxtrx/__init__.py
+++ b/homeassistant/components/rfxtrx/__init__.py
@@ -12,7 +12,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import slugify
 
-
+REQUIREMENTS = ['pyRFXtrx==0.23']
 
 DOMAIN = 'rfxtrx'
 
diff --git a/homeassistant/components/rfxtrx/binary_sensor.py b/homeassistant/components/rfxtrx/binary_sensor.py
index f010ce0b0af..d548897fb80 100644
--- a/homeassistant/components/rfxtrx/binary_sensor.py
+++ b/homeassistant/components/rfxtrx/binary_sensor.py
@@ -17,7 +17,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['rfxtrx']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_DEVICES, default={}): {
diff --git a/homeassistant/components/rfxtrx/cover.py b/homeassistant/components/rfxtrx/cover.py
index f49516a0745..7ac0e2aa43f 100644
--- a/homeassistant/components/rfxtrx/cover.py
+++ b/homeassistant/components/rfxtrx/cover.py
@@ -10,7 +10,7 @@ from . import (
     CONF_AUTOMATIC_ADD, CONF_DEVICES, CONF_FIRE_EVENT, CONF_SIGNAL_REPETITIONS,
     DEFAULT_SIGNAL_REPETITIONS)
 
-
+DEPENDENCIES = ['rfxtrx']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_DEVICES, default={}): {
diff --git a/homeassistant/components/rfxtrx/light.py b/homeassistant/components/rfxtrx/light.py
index 7c9ff6e972d..3320a67214e 100644
--- a/homeassistant/components/rfxtrx/light.py
+++ b/homeassistant/components/rfxtrx/light.py
@@ -13,7 +13,7 @@ from . import (
     CONF_AUTOMATIC_ADD, CONF_DEVICES, CONF_FIRE_EVENT, CONF_SIGNAL_REPETITIONS,
     DEFAULT_SIGNAL_REPETITIONS)
 
-
+DEPENDENCIES = ['rfxtrx']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rfxtrx/sensor.py b/homeassistant/components/rfxtrx/sensor.py
index 30de3513360..cc54320cb67 100644
--- a/homeassistant/components/rfxtrx/sensor.py
+++ b/homeassistant/components/rfxtrx/sensor.py
@@ -14,7 +14,7 @@ from . import (
     ATTR_DATA_TYPE, ATTR_FIRE_EVENT, CONF_AUTOMATIC_ADD, CONF_DATA_TYPE,
     CONF_DEVICES, CONF_FIRE_EVENT, DATA_TYPES)
 
-
+DEPENDENCIES = ['rfxtrx']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rfxtrx/switch.py b/homeassistant/components/rfxtrx/switch.py
index 26756140235..908c07ea745 100644
--- a/homeassistant/components/rfxtrx/switch.py
+++ b/homeassistant/components/rfxtrx/switch.py
@@ -12,7 +12,7 @@ from . import (
     CONF_AUTOMATIC_ADD, CONF_DEVICES, CONF_FIRE_EVENT, CONF_SIGNAL_REPETITIONS,
     DEFAULT_SIGNAL_REPETITIONS)
 
-
+DEPENDENCIES = ['rfxtrx']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ring/__init__.py b/homeassistant/components/ring/__init__.py
index 50437a59fc4..74da7a9d542 100644
--- a/homeassistant/components/ring/__init__.py
+++ b/homeassistant/components/ring/__init__.py
@@ -7,7 +7,7 @@ import voluptuous as vol
 from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['ring_doorbell==0.2.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ring/binary_sensor.py b/homeassistant/components/ring/binary_sensor.py
index 26d3c838f96..79de0424d85 100644
--- a/homeassistant/components/ring/binary_sensor.py
+++ b/homeassistant/components/ring/binary_sensor.py
@@ -12,7 +12,7 @@ import homeassistant.helpers.config_validation as cv
 
 from . import ATTRIBUTION, DATA_RING, DEFAULT_ENTITY_NAMESPACE
 
-
+DEPENDENCIES = ['ring']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ring/camera.py b/homeassistant/components/ring/camera.py
index 9c96717f1c7..18427b9b6f9 100644
--- a/homeassistant/components/ring/camera.py
+++ b/homeassistant/components/ring/camera.py
@@ -16,7 +16,7 @@ from . import ATTRIBUTION, DATA_RING, NOTIFICATION_ID
 
 CONF_FFMPEG_ARGUMENTS = 'ffmpeg_arguments'
 
-
+DEPENDENCIES = ['ring', 'ffmpeg']
 
 FORCE_REFRESH_INTERVAL = timedelta(minutes=45)
 
diff --git a/homeassistant/components/ring/sensor.py b/homeassistant/components/ring/sensor.py
index 697338862a7..c9cb2f1159a 100644
--- a/homeassistant/components/ring/sensor.py
+++ b/homeassistant/components/ring/sensor.py
@@ -13,7 +13,7 @@ from homeassistant.helpers.icon import icon_for_battery_level
 
 from . import ATTRIBUTION, DATA_RING, DEFAULT_ENTITY_NAMESPACE
 
-
+DEPENDENCIES = ['ring']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ripple/sensor.py b/homeassistant/components/ripple/sensor.py
index 6e1937a0e98..54530571c3e 100644
--- a/homeassistant/components/ripple/sensor.py
+++ b/homeassistant/components/ripple/sensor.py
@@ -8,7 +8,7 @@ from homeassistant.const import ATTR_ATTRIBUTION, CONF_ADDRESS, CONF_NAME
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['python-ripple-api==0.0.3']
 
 ATTRIBUTION = "Data provided by ripple.com"
 
diff --git a/homeassistant/components/ritassist/device_tracker.py b/homeassistant/components/ritassist/device_tracker.py
index 887c4244e81..74bec1b8711 100644
--- a/homeassistant/components/ritassist/device_tracker.py
+++ b/homeassistant/components/ritassist/device_tracker.py
@@ -9,7 +9,7 @@ from homeassistant.components.device_tracker import PLATFORM_SCHEMA
 from homeassistant.const import CONF_USERNAME, CONF_PASSWORD
 from homeassistant.helpers.event import track_utc_time_change
 
-
+REQUIREMENTS = ['ritassist==0.9.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rmvtransport/sensor.py b/homeassistant/components/rmvtransport/sensor.py
index e53b92c4108..7a3afb3f324 100644
--- a/homeassistant/components/rmvtransport/sensor.py
+++ b/homeassistant/components/rmvtransport/sensor.py
@@ -13,7 +13,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['PyRMVtransport==0.1.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rocketchat/notify.py b/homeassistant/components/rocketchat/notify.py
index e00e725321b..e404114736a 100644
--- a/homeassistant/components/rocketchat/notify.py
+++ b/homeassistant/components/rocketchat/notify.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.components.notify import (ATTR_DATA, PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-
+REQUIREMENTS = ['rocketchat-API==0.6.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/roku/__init__.py b/homeassistant/components/roku/__init__.py
index 168dd01354c..89bb1a9acb8 100644
--- a/homeassistant/components/roku/__init__.py
+++ b/homeassistant/components/roku/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.const import CONF_HOST
 from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['python-roku==3.1.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/roku/media_player.py b/homeassistant/components/roku/media_player.py
index d88d60b69a2..3cf27af0674 100644
--- a/homeassistant/components/roku/media_player.py
+++ b/homeassistant/components/roku/media_player.py
@@ -10,7 +10,7 @@ from homeassistant.components.media_player.const import (
 from homeassistant.const import (CONF_HOST, STATE_HOME, STATE_IDLE,
                                  STATE_PLAYING)
 
-
+DEPENDENCIES = ['roku']
 
 DEFAULT_PORT = 8060
 
diff --git a/homeassistant/components/roku/remote.py b/homeassistant/components/roku/remote.py
index 5cc1e4de0c6..5529918010c 100644
--- a/homeassistant/components/roku/remote.py
+++ b/homeassistant/components/roku/remote.py
@@ -4,7 +4,7 @@ import requests.exceptions
 from homeassistant.components import remote
 from homeassistant.const import (CONF_HOST)
 
-
+DEPENDENCIES = ['roku']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/roomba/vacuum.py b/homeassistant/components/roomba/vacuum.py
index a345a007489..fadbe2a82d5 100644
--- a/homeassistant/components/roomba/vacuum.py
+++ b/homeassistant/components/roomba/vacuum.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['roombapy==1.3.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/route53/__init__.py b/homeassistant/components/route53/__init__.py
index c94dd727765..725dec8b8e5 100644
--- a/homeassistant/components/route53/__init__.py
+++ b/homeassistant/components/route53/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.const import CONF_DOMAIN, CONF_TTL, CONF_ZONE
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.event import track_time_interval
 
-
+REQUIREMENTS = ['boto3==1.9.16', 'ipify==1.0.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rova/sensor.py b/homeassistant/components/rova/sensor.py
index 28fc55ebcd7..2c2c36b1245 100644
--- a/homeassistant/components/rova/sensor.py
+++ b/homeassistant/components/rova/sensor.py
@@ -12,7 +12,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['rova==0.1.0']
 
 # Config for rova requests.
 CONF_ZIP_CODE = 'zip_code'
diff --git a/homeassistant/components/rpi_gpio/__init__.py b/homeassistant/components/rpi_gpio/__init__.py
index 2d79b114683..b5bd0796f16 100644
--- a/homeassistant/components/rpi_gpio/__init__.py
+++ b/homeassistant/components/rpi_gpio/__init__.py
@@ -4,7 +4,7 @@ import logging
 from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 
-
+REQUIREMENTS = ['RPi.GPIO==0.6.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rpi_gpio/binary_sensor.py b/homeassistant/components/rpi_gpio/binary_sensor.py
index 26e5e603eb4..559ae958404 100644
--- a/homeassistant/components/rpi_gpio/binary_sensor.py
+++ b/homeassistant/components/rpi_gpio/binary_sensor.py
@@ -20,7 +20,7 @@ DEFAULT_BOUNCETIME = 50
 DEFAULT_INVERT_LOGIC = False
 DEFAULT_PULL_MODE = 'UP'
 
-
+DEPENDENCIES = ['rpi_gpio']
 
 _SENSORS_SCHEMA = vol.Schema({
     cv.positive_int: cv.string,
diff --git a/homeassistant/components/rpi_gpio/cover.py b/homeassistant/components/rpi_gpio/cover.py
index a577c982287..403f7ec6867 100644
--- a/homeassistant/components/rpi_gpio/cover.py
+++ b/homeassistant/components/rpi_gpio/cover.py
@@ -23,7 +23,7 @@ DEFAULT_RELAY_TIME = .2
 DEFAULT_STATE_PULL_MODE = 'UP'
 DEFAULT_INVERT_STATE = False
 DEFAULT_INVERT_RELAY = False
-
+DEPENDENCIES = ['rpi_gpio']
 
 _COVERS_SCHEMA = vol.All(
     cv.ensure_list,
diff --git a/homeassistant/components/rpi_gpio/switch.py b/homeassistant/components/rpi_gpio/switch.py
index 21b717f4243..bdb79d03eec 100644
--- a/homeassistant/components/rpi_gpio/switch.py
+++ b/homeassistant/components/rpi_gpio/switch.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['rpi_gpio']
 
 CONF_PULL_MODE = 'pull_mode'
 CONF_PORTS = 'ports'
diff --git a/homeassistant/components/rpi_gpio_pwm/light.py b/homeassistant/components/rpi_gpio_pwm/light.py
index 06fac61401f..b0b9ef1b763 100644
--- a/homeassistant/components/rpi_gpio_pwm/light.py
+++ b/homeassistant/components/rpi_gpio_pwm/light.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 from homeassistant.helpers.restore_state import RestoreEntity
 
-
+REQUIREMENTS = ['pwmled==1.4.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rpi_pfio/__init__.py b/homeassistant/components/rpi_pfio/__init__.py
index 10d36372c09..b096d9fe98a 100644
--- a/homeassistant/components/rpi_pfio/__init__.py
+++ b/homeassistant/components/rpi_pfio/__init__.py
@@ -4,7 +4,7 @@ import logging
 from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 
-
+REQUIREMENTS = ['pifacecommon==4.2.2', 'pifacedigitalio==3.0.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rpi_pfio/binary_sensor.py b/homeassistant/components/rpi_pfio/binary_sensor.py
index 5375e1d4f37..677ec3bb16f 100644
--- a/homeassistant/components/rpi_pfio/binary_sensor.py
+++ b/homeassistant/components/rpi_pfio/binary_sensor.py
@@ -18,7 +18,7 @@ CONF_SETTLE_TIME = 'settle_time'
 DEFAULT_INVERT_LOGIC = False
 DEFAULT_SETTLE_TIME = 20
 
-
+DEPENDENCIES = ['rpi_pfio']
 
 PORT_SCHEMA = vol.Schema({
     vol.Optional(CONF_NAME): cv.string,
diff --git a/homeassistant/components/rpi_pfio/switch.py b/homeassistant/components/rpi_pfio/switch.py
index 90ef5cad7e7..fc158bd666f 100644
--- a/homeassistant/components/rpi_pfio/switch.py
+++ b/homeassistant/components/rpi_pfio/switch.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.entity import ToggleEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['rpi_pfio']
 
 ATTR_INVERT_LOGIC = 'invert_logic'
 
diff --git a/homeassistant/components/rpi_rf/switch.py b/homeassistant/components/rpi_rf/switch.py
index d228c6c93bf..d0a23372802 100644
--- a/homeassistant/components/rpi_rf/switch.py
+++ b/homeassistant/components/rpi_rf/switch.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
     CONF_NAME, CONF_SWITCHES, EVENT_HOMEASSISTANT_STOP)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['rpi-rf==0.9.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rss_feed_template/__init__.py b/homeassistant/components/rss_feed_template/__init__.py
index d51a87f6ba5..3c93fe2ac83 100644
--- a/homeassistant/components/rss_feed_template/__init__.py
+++ b/homeassistant/components/rss_feed_template/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.components.http import HomeAssistantView
 import homeassistant.helpers.config_validation as cv
 
 CONTENT_TYPE_XML = 'text/xml'
-
+DEPENDENCIES = ['http']
 
 DOMAIN = 'rss_feed_template'
 
diff --git a/homeassistant/components/russound_rio/media_player.py b/homeassistant/components/russound_rio/media_player.py
index dba86dfa4af..b8f9d29f5ca 100644
--- a/homeassistant/components/russound_rio/media_player.py
+++ b/homeassistant/components/russound_rio/media_player.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
 from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['russound_rio==0.1.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/russound_rnet/media_player.py b/homeassistant/components/russound_rnet/media_player.py
index 1c6e5d33247..f489d48a9d5 100644
--- a/homeassistant/components/russound_rnet/media_player.py
+++ b/homeassistant/components/russound_rnet/media_player.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_NAME, CONF_PORT, STATE_OFF, STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['russound==0.1.9']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ruter/sensor.py b/homeassistant/components/ruter/sensor.py
index cc2b024dd70..f6fefc96198 100644
--- a/homeassistant/components/ruter/sensor.py
+++ b/homeassistant/components/ruter/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.const import CONF_NAME
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-
+REQUIREMENTS = ['pyruter==1.1.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sabnzbd/__init__.py b/homeassistant/components/sabnzbd/__init__.py
index 003d12b5c15..d070872f85c 100644
--- a/homeassistant/components/sabnzbd/__init__.py
+++ b/homeassistant/components/sabnzbd/__init__.py
@@ -15,7 +15,7 @@ from homeassistant.helpers.dispatcher import async_dispatcher_send
 from homeassistant.helpers.event import async_track_time_interval
 from homeassistant.util.json import load_json, save_json
 
-
+REQUIREMENTS = ['pysabnzbd==1.1.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sabnzbd/sensor.py b/homeassistant/components/sabnzbd/sensor.py
index a0ba5fd4373..4968725a4be 100644
--- a/homeassistant/components/sabnzbd/sensor.py
+++ b/homeassistant/components/sabnzbd/sensor.py
@@ -6,7 +6,7 @@ from homeassistant.helpers.entity import Entity
 
 from . import DATA_SABNZBD, SENSOR_TYPES, SIGNAL_SABNZBD_UPDATED
 
-
+DEPENDENCIES = ['sabnzbd']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/samsungtv/media_player.py b/homeassistant/components/samsungtv/media_player.py
index eb6978495e9..1a2a24c3621 100644
--- a/homeassistant/components/samsungtv/media_player.py
+++ b/homeassistant/components/samsungtv/media_player.py
@@ -18,7 +18,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import dt as dt_util
 
-
+REQUIREMENTS = ['samsungctl[websocket]==0.7.1', 'wakeonlan==1.1.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/satel_integra/__init__.py b/homeassistant/components/satel_integra/__init__.py
index b3a0bbda90b..5f5c43d961f 100644
--- a/homeassistant/components/satel_integra/__init__.py
+++ b/homeassistant/components/satel_integra/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
 from homeassistant.helpers.dispatcher import async_dispatcher_send
 
-
+REQUIREMENTS = ['satel_integra==0.3.2']
 
 DEFAULT_ALARM_NAME = 'satel_integra'
 DEFAULT_PORT = 7094
diff --git a/homeassistant/components/satel_integra/alarm_control_panel.py b/homeassistant/components/satel_integra/alarm_control_panel.py
index f2733a613f4..d2d9f473051 100644
--- a/homeassistant/components/satel_integra/alarm_control_panel.py
+++ b/homeassistant/components/satel_integra/alarm_control_panel.py
@@ -16,7 +16,7 @@ from . import (
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['satel_integra']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/satel_integra/binary_sensor.py b/homeassistant/components/satel_integra/binary_sensor.py
index 97b0b339b87..0384ff37f14 100644
--- a/homeassistant/components/satel_integra/binary_sensor.py
+++ b/homeassistant/components/satel_integra/binary_sensor.py
@@ -9,7 +9,7 @@ from . import (
     CONF_OUTPUTS, CONF_ZONE_NAME, CONF_ZONE_TYPE, CONF_ZONES, DATA_SATEL,
     SIGNAL_OUTPUTS_UPDATED, SIGNAL_ZONES_UPDATED)
 
-
+DEPENDENCIES = ['satel_integra']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/scrape/sensor.py b/homeassistant/components/scrape/sensor.py
index 002188f0bcf..e576eca78e8 100644
--- a/homeassistant/components/scrape/sensor.py
+++ b/homeassistant/components/scrape/sensor.py
@@ -15,7 +15,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['beautifulsoup4==4.7.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/script/__init__.py b/homeassistant/components/script/__init__.py
index 90e8353c858..873a18120ac 100644
--- a/homeassistant/components/script/__init__.py
+++ b/homeassistant/components/script/__init__.py
@@ -18,7 +18,7 @@ from homeassistant.helpers.script import Script
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'script'
-
+DEPENDENCIES = ['group']
 
 ATTR_CAN_CANCEL = 'can_cancel'
 ATTR_LAST_ACTION = 'last_action'
diff --git a/homeassistant/components/scsgate/__init__.py b/homeassistant/components/scsgate/__init__.py
index 52d99fd43f9..67421e9a46a 100644
--- a/homeassistant/components/scsgate/__init__.py
+++ b/homeassistant/components/scsgate/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.const import (CONF_DEVICE, CONF_NAME)
 from homeassistant.core import EVENT_HOMEASSISTANT_STOP
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['scsgate==0.1.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/scsgate/cover.py b/homeassistant/components/scsgate/cover.py
index 906d4cffc5a..fc1c16e1ff3 100644
--- a/homeassistant/components/scsgate/cover.py
+++ b/homeassistant/components/scsgate/cover.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['scsgate']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_DEVICES):
diff --git a/homeassistant/components/scsgate/light.py b/homeassistant/components/scsgate/light.py
index 5608be96fee..87d7e02b383 100644
--- a/homeassistant/components/scsgate/light.py
+++ b/homeassistant/components/scsgate/light.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['scsgate']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_DEVICES):
diff --git a/homeassistant/components/scsgate/switch.py b/homeassistant/components/scsgate/switch.py
index 6a9d6fa623a..2b2bf2de94f 100644
--- a/homeassistant/components/scsgate/switch.py
+++ b/homeassistant/components/scsgate/switch.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 
 ATTR_SCENARIO_ID = 'scenario_id'
 
-
+DEPENDENCIES = ['scsgate']
 
 CONF_TRADITIONAL = 'traditional'
 CONF_SCENARIO = 'scenario'
diff --git a/homeassistant/components/season/sensor.py b/homeassistant/components/season/sensor.py
index 7d6685453cd..7c7b1054961 100644
--- a/homeassistant/components/season/sensor.py
+++ b/homeassistant/components/season/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.const import CONF_TYPE
 from homeassistant.helpers.entity import Entity
 from homeassistant import util
 
-
+REQUIREMENTS = ['ephem==3.7.6.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sendgrid/notify.py b/homeassistant/components/sendgrid/notify.py
index b56e2159d3a..a717c7f24ed 100644
--- a/homeassistant/components/sendgrid/notify.py
+++ b/homeassistant/components/sendgrid/notify.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.components.notify import (
     ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 
-
+REQUIREMENTS = ['sendgrid==5.6.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sense/__init__.py b/homeassistant/components/sense/__init__.py
index 762c7ad672d..be3ab75b555 100644
--- a/homeassistant/components/sense/__init__.py
+++ b/homeassistant/components/sense/__init__.py
@@ -7,7 +7,7 @@ from homeassistant.const import CONF_EMAIL, CONF_PASSWORD, CONF_TIMEOUT
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
 
-
+REQUIREMENTS = ['sense_energy==0.7.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sense/binary_sensor.py b/homeassistant/components/sense/binary_sensor.py
index ce961aa4dac..da9bae3cc84 100644
--- a/homeassistant/components/sense/binary_sensor.py
+++ b/homeassistant/components/sense/binary_sensor.py
@@ -5,7 +5,7 @@ from homeassistant.components.binary_sensor import BinarySensorDevice
 
 from . import SENSE_DATA
 
-
+DEPENDENCIES = ['sense']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sense/sensor.py b/homeassistant/components/sense/sensor.py
index 4f4fe500960..0224884e18a 100644
--- a/homeassistant/components/sense/sensor.py
+++ b/homeassistant/components/sense/sensor.py
@@ -15,7 +15,7 @@ ACTIVE_TYPE = 'active'
 
 CONSUMPTION_NAME = 'Usage'
 
-
+DEPENDENCIES = ['sense']
 
 ICON = 'mdi:flash'
 
diff --git a/homeassistant/components/sensehat/light.py b/homeassistant/components/sensehat/light.py
index 7a25c66e282..c68e77b40a4 100644
--- a/homeassistant/components/sensehat/light.py
+++ b/homeassistant/components/sensehat/light.py
@@ -10,7 +10,7 @@ from homeassistant.components.light import (
 from homeassistant.const import CONF_NAME
 import homeassistant.util.color as color_util
 
-
+REQUIREMENTS = ['sense-hat==2.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sensehat/sensor.py b/homeassistant/components/sensehat/sensor.py
index 82cd0c9bae1..870150c1a98 100644
--- a/homeassistant/components/sensehat/sensor.py
+++ b/homeassistant/components/sensehat/sensor.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['sense-hat==2.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sensibo/climate.py b/homeassistant/components/sensibo/climate.py
index 9cf13c2fe7e..bf06f232427 100644
--- a/homeassistant/components/sensibo/climate.py
+++ b/homeassistant/components/sensibo/climate.py
@@ -21,7 +21,7 @@ from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.util.temperature import convert as convert_temperature
 
-
+REQUIREMENTS = ['pysensibo==1.0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/serial/sensor.py b/homeassistant/components/serial/sensor.py
index b2af5505601..c01981f9021 100644
--- a/homeassistant/components/serial/sensor.py
+++ b/homeassistant/components/serial/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
     CONF_NAME, CONF_VALUE_TEMPLATE, EVENT_HOMEASSISTANT_STOP)
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['pyserial-asyncio==0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/serial_pm/sensor.py b/homeassistant/components/serial_pm/sensor.py
index 1922dfff73a..9ad65f7256f 100644
--- a/homeassistant/components/serial_pm/sensor.py
+++ b/homeassistant/components/serial_pm/sensor.py
@@ -8,7 +8,7 @@ from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 
-
+REQUIREMENTS = ['pmsensor==0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sesame/lock.py b/homeassistant/components/sesame/lock.py
index 385bdd1eeef..263914f389c 100644
--- a/homeassistant/components/sesame/lock.py
+++ b/homeassistant/components/sesame/lock.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
     STATE_LOCKED, STATE_UNLOCKED)
 from homeassistant.helpers.typing import ConfigType
 
-
+REQUIREMENTS = ['pysesame==0.1.0']
 
 ATTR_DEVICE_ID = 'device_id'
 
diff --git a/homeassistant/components/seventeentrack/sensor.py b/homeassistant/components/seventeentrack/sensor.py
index 3d7c8a94b41..ff17d1a4c54 100644
--- a/homeassistant/components/seventeentrack/sensor.py
+++ b/homeassistant/components/seventeentrack/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.helpers import aiohttp_client, config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle, slugify
 
-
+REQUIREMENTS = ['py17track==2.2.2']
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_DESTINATION_COUNTRY = 'destination_country'
diff --git a/homeassistant/components/shiftr/__init__.py b/homeassistant/components/shiftr/__init__.py
index 075aa602e8d..438bc36b1bf 100644
--- a/homeassistant/components/shiftr/__init__.py
+++ b/homeassistant/components/shiftr/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
     EVENT_HOMEASSISTANT_STOP)
 from homeassistant.helpers import state as state_helper
 
-
+REQUIREMENTS = ['paho-mqtt==1.4.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/shodan/sensor.py b/homeassistant/components/shodan/sensor.py
index 6bce0d25261..ee64eecf3fe 100644
--- a/homeassistant/components/shodan/sensor.py
+++ b/homeassistant/components/shodan/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import ATTR_ATTRIBUTION, CONF_API_KEY, CONF_NAME
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['shodan==1.11.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/shopping_list/__init__.py b/homeassistant/components/shopping_list/__init__.py
index 7f24bba6db7..1a036f3661a 100644
--- a/homeassistant/components/shopping_list/__init__.py
+++ b/homeassistant/components/shopping_list/__init__.py
@@ -18,7 +18,7 @@ from homeassistant.components import websocket_api
 ATTR_NAME = 'name'
 
 DOMAIN = 'shopping_list'
-
+DEPENDENCIES = ['http']
 _LOGGER = logging.getLogger(__name__)
 CONFIG_SCHEMA = vol.Schema({DOMAIN: {}}, extra=vol.ALLOW_EXTRA)
 EVENT = 'shopping_list_updated'
diff --git a/homeassistant/components/simplepush/notify.py b/homeassistant/components/simplepush/notify.py
index 52e9d207f98..081351238d9 100644
--- a/homeassistant/components/simplepush/notify.py
+++ b/homeassistant/components/simplepush/notify.py
@@ -9,7 +9,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.components.notify import (
     ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 
-
+REQUIREMENTS = ['simplepush==1.1.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/simplisafe/__init__.py b/homeassistant/components/simplisafe/__init__.py
index fbdada4e1bf..359591856a7 100644
--- a/homeassistant/components/simplisafe/__init__.py
+++ b/homeassistant/components/simplisafe/__init__.py
@@ -19,7 +19,7 @@ from homeassistant.helpers import config_validation as cv
 from .config_flow import configured_instances
 from .const import DATA_CLIENT, DEFAULT_SCAN_INTERVAL, DOMAIN, TOPIC_UPDATE
 
-
+REQUIREMENTS = ['simplisafe-python==3.4.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sisyphus/__init__.py b/homeassistant/components/sisyphus/__init__.py
index 20523296ec3..b1bec15d40e 100644
--- a/homeassistant/components/sisyphus/__init__.py
+++ b/homeassistant/components/sisyphus/__init__.py
@@ -13,7 +13,7 @@ from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
 
-
+REQUIREMENTS = ['sisyphus-control==2.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sisyphus/light.py b/homeassistant/components/sisyphus/light.py
index b285824d7ce..182e5e78198 100644
--- a/homeassistant/components/sisyphus/light.py
+++ b/homeassistant/components/sisyphus/light.py
@@ -8,7 +8,7 @@ from . import DATA_SISYPHUS
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['sisyphus']
 
 SUPPORTED_FEATURES = SUPPORT_BRIGHTNESS
 
diff --git a/homeassistant/components/sisyphus/media_player.py b/homeassistant/components/sisyphus/media_player.py
index 29a0f47784e..11546c3fd43 100644
--- a/homeassistant/components/sisyphus/media_player.py
+++ b/homeassistant/components/sisyphus/media_player.py
@@ -13,7 +13,7 @@ from . import DATA_SISYPHUS
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['sisyphus']
 
 MEDIA_TYPE_TRACK = 'sisyphus_track'
 
diff --git a/homeassistant/components/skybeacon/sensor.py b/homeassistant/components/skybeacon/sensor.py
index 9e6f0a91472..9b8b4872cdc 100644
--- a/homeassistant/components/skybeacon/sensor.py
+++ b/homeassistant/components/skybeacon/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['pygatt[GATTTOOL]==3.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/skybell/__init__.py b/homeassistant/components/skybell/__init__.py
index b404a43bf3e..31d1339fbcf 100644
--- a/homeassistant/components/skybell/__init__.py
+++ b/homeassistant/components/skybell/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['skybellpy==0.3.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/skybell/binary_sensor.py b/homeassistant/components/skybell/binary_sensor.py
index 89878d0651b..8c2b8355258 100644
--- a/homeassistant/components/skybell/binary_sensor.py
+++ b/homeassistant/components/skybell/binary_sensor.py
@@ -12,7 +12,7 @@ import homeassistant.helpers.config_validation as cv
 
 from . import DEFAULT_ENTITY_NAMESPACE, DOMAIN as SKYBELL_DOMAIN, SkybellDevice
 
-
+DEPENDENCIES = ['skybell']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/skybell/camera.py b/homeassistant/components/skybell/camera.py
index bad3d423a82..04b03f84bf7 100644
--- a/homeassistant/components/skybell/camera.py
+++ b/homeassistant/components/skybell/camera.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 
 from . import DOMAIN as SKYBELL_DOMAIN, SkybellDevice
 
-
+DEPENDENCIES = ['skybell']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/skybell/light.py b/homeassistant/components/skybell/light.py
index 491bfed953c..d413f9df412 100644
--- a/homeassistant/components/skybell/light.py
+++ b/homeassistant/components/skybell/light.py
@@ -7,7 +7,7 @@ import homeassistant.util.color as color_util
 
 from . import DOMAIN as SKYBELL_DOMAIN, SkybellDevice
 
-
+DEPENDENCIES = ['skybell']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/skybell/sensor.py b/homeassistant/components/skybell/sensor.py
index e2bfcedf298..067e850dfcf 100644
--- a/homeassistant/components/skybell/sensor.py
+++ b/homeassistant/components/skybell/sensor.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 
 from . import DEFAULT_ENTITY_NAMESPACE, DOMAIN as SKYBELL_DOMAIN, SkybellDevice
 
-
+DEPENDENCIES = ['skybell']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/skybell/switch.py b/homeassistant/components/skybell/switch.py
index e41b2305220..674bbf22a08 100644
--- a/homeassistant/components/skybell/switch.py
+++ b/homeassistant/components/skybell/switch.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 
 from . import DEFAULT_ENTITY_NAMESPACE, DOMAIN as SKYBELL_DOMAIN, SkybellDevice
 
-
+DEPENDENCIES = ['skybell']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/slack/notify.py b/homeassistant/components/slack/notify.py
index cf879478c0d..026fed0a58e 100644
--- a/homeassistant/components/slack/notify.py
+++ b/homeassistant/components/slack/notify.py
@@ -12,7 +12,7 @@ from homeassistant.components.notify import (
     ATTR_DATA, ATTR_TARGET, ATTR_TITLE, PLATFORM_SCHEMA,
     BaseNotificationService)
 
-
+REQUIREMENTS = ['slacker==0.12.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sleepiq/__init__.py b/homeassistant/components/sleepiq/__init__.py
index 99c66d6e707..7a23c6c4609 100644
--- a/homeassistant/components/sleepiq/__init__.py
+++ b/homeassistant/components/sleepiq/__init__.py
@@ -13,7 +13,7 @@ from homeassistant.util import Throttle
 
 DOMAIN = 'sleepiq'
 
-
+REQUIREMENTS = ['sleepyq==0.6']
 
 MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=30)
 
diff --git a/homeassistant/components/sleepiq/binary_sensor.py b/homeassistant/components/sleepiq/binary_sensor.py
index e0843e67fd5..11f9e25d8c9 100644
--- a/homeassistant/components/sleepiq/binary_sensor.py
+++ b/homeassistant/components/sleepiq/binary_sensor.py
@@ -2,7 +2,7 @@
 from homeassistant.components import sleepiq
 from homeassistant.components.binary_sensor import BinarySensorDevice
 
-
+DEPENDENCIES = ['sleepiq']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/sleepiq/sensor.py b/homeassistant/components/sleepiq/sensor.py
index 86b9fc7fef5..3de444c3324 100644
--- a/homeassistant/components/sleepiq/sensor.py
+++ b/homeassistant/components/sleepiq/sensor.py
@@ -1,7 +1,7 @@
 """Support for SleepIQ sensors."""
 from homeassistant.components import sleepiq
 
-
+DEPENDENCIES = ['sleepiq']
 ICON = 'mdi:hotel'
 
 
diff --git a/homeassistant/components/sma/sensor.py b/homeassistant/components/sma/sensor.py
index 718a6c1ffdd..a2ec7871f60 100644
--- a/homeassistant/components/sma/sensor.py
+++ b/homeassistant/components/sma/sensor.py
@@ -14,7 +14,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import async_track_time_interval
 
-
+REQUIREMENTS = ['pysma==0.3.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/smappee/__init__.py b/homeassistant/components/smappee/__init__.py
index 8f01bd39217..7a495d7b89a 100644
--- a/homeassistant/components/smappee/__init__.py
+++ b/homeassistant/components/smappee/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.util import Throttle
 from homeassistant.helpers.discovery import load_platform
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['smappy==0.2.16']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/smappee/sensor.py b/homeassistant/components/smappee/sensor.py
index 39a2d98fde2..98527c769d9 100644
--- a/homeassistant/components/smappee/sensor.py
+++ b/homeassistant/components/smappee/sensor.py
@@ -7,7 +7,7 @@ from homeassistant.helpers.entity import Entity
 
 from . import DATA_SMAPPEE
 
-
+DEPENDENCIES = ['smappee']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/smappee/switch.py b/homeassistant/components/smappee/switch.py
index 2f5737c9be5..963caf457fe 100644
--- a/homeassistant/components/smappee/switch.py
+++ b/homeassistant/components/smappee/switch.py
@@ -5,7 +5,7 @@ from homeassistant.components.switch import SwitchDevice
 
 from . import DATA_SMAPPEE
 
-
+DEPENDENCIES = ['smappee']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/smartthings/__init__.py b/homeassistant/components/smartthings/__init__.py
index 15a9500150c..e5226076f46 100644
--- a/homeassistant/components/smartthings/__init__.py
+++ b/homeassistant/components/smartthings/__init__.py
@@ -28,8 +28,8 @@ from .smartapp import (
     unload_smartapp_endpoint, validate_installed_app,
     validate_webhook_requirements)
 
-
-
+REQUIREMENTS = ['pysmartapp==0.3.2', 'pysmartthings==0.6.7']
+DEPENDENCIES = ['webhook']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/smartthings/binary_sensor.py b/homeassistant/components/smartthings/binary_sensor.py
index 3f6064a30dd..45101601d5f 100644
--- a/homeassistant/components/smartthings/binary_sensor.py
+++ b/homeassistant/components/smartthings/binary_sensor.py
@@ -6,7 +6,7 @@ from homeassistant.components.binary_sensor import BinarySensorDevice
 from . import SmartThingsEntity
 from .const import DATA_BROKERS, DOMAIN
 
-
+DEPENDENCIES = ['smartthings']
 
 CAPABILITY_TO_ATTRIB = {
     'accelerationSensor': 'acceleration',
diff --git a/homeassistant/components/smartthings/climate.py b/homeassistant/components/smartthings/climate.py
index 180008bcd3a..bcf2dc02cb0 100644
--- a/homeassistant/components/smartthings/climate.py
+++ b/homeassistant/components/smartthings/climate.py
@@ -17,7 +17,7 @@ from homeassistant.const import (
 from . import SmartThingsEntity
 from .const import DATA_BROKERS, DOMAIN
 
-
+DEPENDENCIES = ['smartthings']
 
 ATTR_OPERATION_STATE = 'operation_state'
 MODE_TO_STATE = {
diff --git a/homeassistant/components/smartthings/cover.py b/homeassistant/components/smartthings/cover.py
index 5c740e4dfde..53602c3643c 100644
--- a/homeassistant/components/smartthings/cover.py
+++ b/homeassistant/components/smartthings/cover.py
@@ -11,7 +11,7 @@ from homeassistant.const import ATTR_BATTERY_LEVEL
 from . import SmartThingsEntity
 from .const import DATA_BROKERS, DOMAIN
 
-
+DEPENDENCIES = ['smartthings']
 
 VALUE_TO_STATE = {
     'closed': STATE_CLOSED,
diff --git a/homeassistant/components/smartthings/fan.py b/homeassistant/components/smartthings/fan.py
index 128ead6cbb8..e722cd21d65 100644
--- a/homeassistant/components/smartthings/fan.py
+++ b/homeassistant/components/smartthings/fan.py
@@ -8,7 +8,7 @@ from homeassistant.components.fan import (
 from . import SmartThingsEntity
 from .const import DATA_BROKERS, DOMAIN
 
-
+DEPENDENCIES = ['smartthings']
 
 VALUE_TO_SPEED = {
     0: SPEED_OFF,
diff --git a/homeassistant/components/smartthings/light.py b/homeassistant/components/smartthings/light.py
index 210f2caa86a..79a5eabc20a 100644
--- a/homeassistant/components/smartthings/light.py
+++ b/homeassistant/components/smartthings/light.py
@@ -11,7 +11,7 @@ import homeassistant.util.color as color_util
 from . import SmartThingsEntity
 from .const import DATA_BROKERS, DOMAIN
 
-
+DEPENDENCIES = ['smartthings']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/smartthings/lock.py b/homeassistant/components/smartthings/lock.py
index 56085ffbe2c..c7ab091454c 100644
--- a/homeassistant/components/smartthings/lock.py
+++ b/homeassistant/components/smartthings/lock.py
@@ -6,7 +6,7 @@ from homeassistant.components.lock import LockDevice
 from . import SmartThingsEntity
 from .const import DATA_BROKERS, DOMAIN
 
-
+DEPENDENCIES = ['smartthings']
 
 ST_STATE_LOCKED = 'locked'
 ST_LOCK_ATTR_MAP = {
diff --git a/homeassistant/components/smartthings/scene.py b/homeassistant/components/smartthings/scene.py
index bf05d0e98ba..9bf3211d8e3 100644
--- a/homeassistant/components/smartthings/scene.py
+++ b/homeassistant/components/smartthings/scene.py
@@ -3,7 +3,7 @@ from homeassistant.components.scene import Scene
 
 from .const import DATA_BROKERS, DOMAIN
 
-
+DEPENDENCIES = ['smartthings']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/smartthings/sensor.py b/homeassistant/components/smartthings/sensor.py
index ee951dc9786..4f7ad1a1398 100644
--- a/homeassistant/components/smartthings/sensor.py
+++ b/homeassistant/components/smartthings/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
 from . import SmartThingsEntity
 from .const import DATA_BROKERS, DOMAIN
 
-
+DEPENDENCIES = ['smartthings']
 
 Map = namedtuple("map", "attribute name default_unit device_class")
 
diff --git a/homeassistant/components/smartthings/switch.py b/homeassistant/components/smartthings/switch.py
index 1707597e4b8..d30aa3a2303 100644
--- a/homeassistant/components/smartthings/switch.py
+++ b/homeassistant/components/smartthings/switch.py
@@ -6,7 +6,7 @@ from homeassistant.components.switch import SwitchDevice
 from . import SmartThingsEntity
 from .const import DATA_BROKERS, DOMAIN
 
-
+DEPENDENCIES = ['smartthings']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/smhi/__init__.py b/homeassistant/components/smhi/__init__.py
index 3d9f29b0b75..608ee9b6a6d 100644
--- a/homeassistant/components/smhi/__init__.py
+++ b/homeassistant/components/smhi/__init__.py
@@ -6,7 +6,7 @@ from homeassistant.core import Config, HomeAssistant
 from .config_flow import smhi_locations  # noqa: F401
 from .const import DOMAIN  # noqa: F401
 
-
+REQUIREMENTS = ['smhi-pkg==1.0.10']
 
 DEFAULT_NAME = 'smhi'
 
diff --git a/homeassistant/components/smhi/weather.py b/homeassistant/components/smhi/weather.py
index 9961f633779..fc3399f755c 100644
--- a/homeassistant/components/smhi/weather.py
+++ b/homeassistant/components/smhi/weather.py
@@ -19,7 +19,7 @@ from homeassistant.util import Throttle, slugify
 
 from .const import ATTR_SMHI_CLOUDINESS, ENTITY_ID_SENSOR_FORMAT
 
-
+DEPENDENCIES = ['smhi']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/snapcast/media_player.py b/homeassistant/components/snapcast/media_player.py
index 3f43857929c..b1589c4db51 100644
--- a/homeassistant/components/snapcast/media_player.py
+++ b/homeassistant/components/snapcast/media_player.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
     STATE_PLAYING, STATE_UNKNOWN)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['snapcast==2.0.9']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/snips/__init__.py b/homeassistant/components/snips/__init__.py
index 13b525ca140..0cc96d66b1a 100644
--- a/homeassistant/components/snips/__init__.py
+++ b/homeassistant/components/snips/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.helpers import intent, config_validation as cv
 from homeassistant.components import mqtt
 
 DOMAIN = 'snips'
-
+DEPENDENCIES = ['mqtt']
 
 CONF_INTENTS = 'intents'
 CONF_ACTION = 'action'
diff --git a/homeassistant/components/snmp/device_tracker.py b/homeassistant/components/snmp/device_tracker.py
index 5da930d1048..8a0fe7c6101 100644
--- a/homeassistant/components/snmp/device_tracker.py
+++ b/homeassistant/components/snmp/device_tracker.py
@@ -9,7 +9,7 @@ from homeassistant.components.device_tracker import (
     DOMAIN, PLATFORM_SCHEMA, DeviceScanner)
 from homeassistant.const import CONF_HOST
 
-
+REQUIREMENTS = ['pysnmp==4.4.8']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/snmp/sensor.py b/homeassistant/components/snmp/sensor.py
index cb2cab5cdb3..83d31118988 100644
--- a/homeassistant/components/snmp/sensor.py
+++ b/homeassistant/components/snmp/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_NAME, CONF_PORT, CONF_UNIT_OF_MEASUREMENT, STATE_UNKNOWN,
     CONF_USERNAME, CONF_VALUE_TEMPLATE)
 
-
+REQUIREMENTS = ['pysnmp==4.4.8']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/snmp/switch.py b/homeassistant/components/snmp/switch.py
index b709b747566..fdb3267a3c7 100644
--- a/homeassistant/components/snmp/switch.py
+++ b/homeassistant/components/snmp/switch.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
     CONF_USERNAME)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pysnmp==4.4.8']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sochain/sensor.py b/homeassistant/components/sochain/sensor.py
index c827ac54ef2..ef6a53b7091 100644
--- a/homeassistant/components/sochain/sensor.py
+++ b/homeassistant/components/sochain/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['python-sochain-api==0.0.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/socialblade/sensor.py b/homeassistant/components/socialblade/sensor.py
index 33bd84548be..77433ac6d57 100644
--- a/homeassistant/components/socialblade/sensor.py
+++ b/homeassistant/components/socialblade/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.util import Throttle
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['socialbladeclient==0.2']
 
 CHANNEL_ID = 'channel_id'
 
diff --git a/homeassistant/components/solaredge/sensor.py b/homeassistant/components/solaredge/sensor.py
index 406e7ab217a..6c6d7557282 100644
--- a/homeassistant/components/solaredge/sensor.py
+++ b/homeassistant/components/solaredge/sensor.py
@@ -14,7 +14,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['solaredge==0.0.2', 'stringcase==1.2.0']
 
 # Config for solaredge monitoring api requests.
 CONF_SITE_ID = "site_id"
diff --git a/homeassistant/components/somfy_mylink/__init__.py b/homeassistant/components/somfy_mylink/__init__.py
index 9a9728960c1..c8a6314acaa 100755
--- a/homeassistant/components/somfy_mylink/__init__.py
+++ b/homeassistant/components/somfy_mylink/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
 
 _LOGGER = logging.getLogger(__name__)
-
+REQUIREMENTS = ['somfy-mylink-synergy==1.0.4']
 CONF_ENTITY_CONFIG = 'entity_config'
 CONF_SYSTEM_ID = 'system_id'
 CONF_REVERSE = 'reverse'
diff --git a/homeassistant/components/somfy_mylink/cover.py b/homeassistant/components/somfy_mylink/cover.py
index 9f926315861..e0b9eae36eb 100755
--- a/homeassistant/components/somfy_mylink/cover.py
+++ b/homeassistant/components/somfy_mylink/cover.py
@@ -7,7 +7,7 @@ from homeassistant.util import slugify
 from . import CONF_DEFAULT_REVERSE, DATA_SOMFY_MYLINK
 
 _LOGGER = logging.getLogger(__name__)
-
+DEPENDENCIES = ['somfy_mylink']
 
 
 async def async_setup_platform(hass,
diff --git a/homeassistant/components/songpal/media_player.py b/homeassistant/components/songpal/media_player.py
index 2407a9b2030..842360484cf 100644
--- a/homeassistant/components/songpal/media_player.py
+++ b/homeassistant/components/songpal/media_player.py
@@ -16,7 +16,7 @@ from homeassistant.const import (
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['python-songpal==0.0.9.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sonos/__init__.py b/homeassistant/components/sonos/__init__.py
index a9cc4eeb2bc..d5f89cd074e 100644
--- a/homeassistant/components/sonos/__init__.py
+++ b/homeassistant/components/sonos/__init__.py
@@ -4,7 +4,7 @@ from homeassistant.helpers import config_entry_flow
 
 
 DOMAIN = 'sonos'
-
+REQUIREMENTS = ['pysonos==0.0.10']
 
 
 async def async_setup(hass, config):
diff --git a/homeassistant/components/sony_projector/switch.py b/homeassistant/components/sony_projector/switch.py
index b3fca5c7226..5b3ffeed75f 100644
--- a/homeassistant/components/sony_projector/switch.py
+++ b/homeassistant/components/sony_projector/switch.py
@@ -8,7 +8,7 @@ from homeassistant.const import (
     STATE_ON, STATE_OFF, CONF_NAME, CONF_HOST)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pysdcp==1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/soundtouch/media_player.py b/homeassistant/components/soundtouch/media_player.py
index 2c7e08b9cbd..027fad43a40 100644
--- a/homeassistant/components/soundtouch/media_player.py
+++ b/homeassistant/components/soundtouch/media_player.py
@@ -15,7 +15,7 @@ from homeassistant.const import (
     STATE_UNAVAILABLE)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['libsoundtouch==0.7.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/spaceapi/__init__.py b/homeassistant/components/spaceapi/__init__.py
index 3bbfdd29789..fb76718f2d5 100644
--- a/homeassistant/components/spaceapi/__init__.py
+++ b/homeassistant/components/spaceapi/__init__.py
@@ -45,7 +45,7 @@ CONF_TEMPERATURE = 'temperature'
 CONF_TWITTER = 'twitter'
 
 DATA_SPACEAPI = 'data_spaceapi'
-
+DEPENDENCIES = ['http']
 DOMAIN = 'spaceapi'
 
 ISSUE_REPORT_CHANNELS = [CONF_EMAIL, CONF_IRC, CONF_MAILING_LIST, CONF_TWITTER]
diff --git a/homeassistant/components/spc/__init__.py b/homeassistant/components/spc/__init__.py
index 2f322a6f990..8aafb6f1210 100644
--- a/homeassistant/components/spc/__init__.py
+++ b/homeassistant/components/spc/__init__.py
@@ -7,7 +7,7 @@ from homeassistant.helpers import discovery, aiohttp_client
 from homeassistant.helpers.dispatcher import async_dispatcher_send
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pyspcwebgw==0.4.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/speedtestdotnet/__init__.py b/homeassistant/components/speedtestdotnet/__init__.py
index 6a7f190a571..48953874e8c 100644
--- a/homeassistant/components/speedtestdotnet/__init__.py
+++ b/homeassistant/components/speedtestdotnet/__init__.py
@@ -14,7 +14,7 @@ from homeassistant.helpers.dispatcher import dispatcher_send
 from homeassistant.helpers.event import async_track_time_interval
 from .const import DATA_UPDATED, DOMAIN, SENSOR_TYPES
 
-
+REQUIREMENTS = ['speedtest-cli==2.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/speedtestdotnet/sensor.py b/homeassistant/components/speedtestdotnet/sensor.py
index 001089dfe01..fb92bb76ac8 100644
--- a/homeassistant/components/speedtestdotnet/sensor.py
+++ b/homeassistant/components/speedtestdotnet/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.helpers.restore_state import RestoreEntity
 from .const import (
     DATA_UPDATED, DOMAIN as SPEEDTESTDOTNET_DOMAIN, SENSOR_TYPES)
 
-
+DEPENDENCIES = ['speedtestdotnet']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/spider/__init__.py b/homeassistant/components/spider/__init__.py
index bbca33fc4f0..b565f183457 100644
--- a/homeassistant/components/spider/__init__.py
+++ b/homeassistant/components/spider/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import load_platform
 
-
+REQUIREMENTS = ['spiderpy==1.3.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/spider/climate.py b/homeassistant/components/spider/climate.py
index 3062edd0d07..3b612441a88 100644
--- a/homeassistant/components/spider/climate.py
+++ b/homeassistant/components/spider/climate.py
@@ -10,7 +10,7 @@ from homeassistant.const import ATTR_TEMPERATURE, TEMP_CELSIUS
 
 from . import DOMAIN as SPIDER_DOMAIN
 
-
+DEPENDENCIES = ['spider']
 
 FAN_LIST = [
     'Auto',
diff --git a/homeassistant/components/spider/switch.py b/homeassistant/components/spider/switch.py
index c420ece17b0..e43762be460 100644
--- a/homeassistant/components/spider/switch.py
+++ b/homeassistant/components/spider/switch.py
@@ -5,7 +5,7 @@ from homeassistant.components.switch import SwitchDevice
 
 from . import DOMAIN as SPIDER_DOMAIN
 
-
+DEPENDENCIES = ['spider']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/spotcrime/sensor.py b/homeassistant/components/spotcrime/sensor.py
index 7c5375db7af..fa9cfa687ec 100644
--- a/homeassistant/components/spotcrime/sensor.py
+++ b/homeassistant/components/spotcrime/sensor.py
@@ -15,7 +15,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.util import slugify
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['spotcrime==1.0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/spotify/media_player.py b/homeassistant/components/spotify/media_player.py
index c7b56fcd091..b9252d5035b 100644
--- a/homeassistant/components/spotify/media_player.py
+++ b/homeassistant/components/spotify/media_player.py
@@ -16,7 +16,7 @@ from homeassistant.const import (
 from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['spotipy-homeassistant==2.4.4.dev1']
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -35,7 +35,7 @@ CONFIGURATOR_SUBMIT_CAPTION = 'I authorized successfully'
 
 DEFAULT_CACHE_PATH = '.spotify-token-cache'
 DEFAULT_NAME = 'Spotify'
-
+DEPENDENCIES = ['http']
 DOMAIN = 'spotify'
 
 ICON = 'mdi:spotify'
diff --git a/homeassistant/components/sql/sensor.py b/homeassistant/components/sql/sensor.py
index 1ee4b71fa21..bc40d5efb42 100644
--- a/homeassistant/components/sql/sensor.py
+++ b/homeassistant/components/sql/sensor.py
@@ -15,7 +15,7 @@ from homeassistant.helpers.entity import Entity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['sqlalchemy==1.3.0']
 
 CONF_COLUMN_NAME = 'column'
 CONF_QUERIES = 'queries'
diff --git a/homeassistant/components/srp_energy/sensor.py b/homeassistant/components/srp_energy/sensor.py
index 6da48df6c44..0ebae427da1 100644
--- a/homeassistant/components/srp_energy/sensor.py
+++ b/homeassistant/components/srp_energy/sensor.py
@@ -14,7 +14,7 @@ from homeassistant.util import Throttle
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['srpenergy==1.0.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/starlingbank/sensor.py b/homeassistant/components/starlingbank/sensor.py
index 79116047712..00640ea4963 100644
--- a/homeassistant/components/starlingbank/sensor.py
+++ b/homeassistant/components/starlingbank/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.const import CONF_ACCESS_TOKEN, CONF_NAME
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['starlingbank==3.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/startca/sensor.py b/homeassistant/components/startca/sensor.py
index ea9b57862b7..1e57a4cf859 100644
--- a/homeassistant/components/startca/sensor.py
+++ b/homeassistant/components/startca/sensor.py
@@ -14,7 +14,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['xmltodict==0.11.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/statsd/__init__.py b/homeassistant/components/statsd/__init__.py
index aaf2ac9fccb..a8c34d0a843 100644
--- a/homeassistant/components/statsd/__init__.py
+++ b/homeassistant/components/statsd/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers import state as state_helper
 
-
+REQUIREMENTS = ['statsd==3.2.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/steam_online/sensor.py b/homeassistant/components/steam_online/sensor.py
index 7c09bde2685..4b4b73ad8cf 100644
--- a/homeassistant/components/steam_online/sensor.py
+++ b/homeassistant/components/steam_online/sensor.py
@@ -8,7 +8,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.const import CONF_API_KEY
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['steamodd==4.21']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/stream/__init__.py b/homeassistant/components/stream/__init__.py
index 49a015dc31f..43debc504e1 100644
--- a/homeassistant/components/stream/__init__.py
+++ b/homeassistant/components/stream/__init__.py
@@ -19,11 +19,11 @@ from .worker import stream_worker
 from .hls import async_setup_hls
 from .recorder import async_setup_recorder
 
-
+REQUIREMENTS = ['av==6.1.2']
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['http']
 
 CONFIG_SCHEMA = vol.Schema({
     DOMAIN: vol.Schema({}),
diff --git a/homeassistant/components/stride/notify.py b/homeassistant/components/stride/notify.py
index 27ffdffca8e..fa08697d798 100644
--- a/homeassistant/components/stride/notify.py
+++ b/homeassistant/components/stride/notify.py
@@ -10,7 +10,7 @@ from homeassistant.components.notify import (ATTR_DATA, ATTR_TARGET,
                                              PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-
+REQUIREMENTS = ['pystride==0.1.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/swiss_hydrological_data/sensor.py b/homeassistant/components/swiss_hydrological_data/sensor.py
index 0b2a52d5026..84964a94cbd 100644
--- a/homeassistant/components/swiss_hydrological_data/sensor.py
+++ b/homeassistant/components/swiss_hydrological_data/sensor.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['swisshydrodata==0.0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/swiss_public_transport/sensor.py b/homeassistant/components/swiss_public_transport/sensor.py
index b49aafca821..8d6b7fdee0e 100644
--- a/homeassistant/components/swiss_public_transport/sensor.py
+++ b/homeassistant/components/swiss_public_transport/sensor.py
@@ -11,7 +11,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['python_opendata_transport==0.1.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/switch/__init__.py b/homeassistant/components/switch/__init__.py
index cea32fb2b0d..7e89a5369c8 100644
--- a/homeassistant/components/switch/__init__.py
+++ b/homeassistant/components/switch/__init__.py
@@ -16,7 +16,7 @@ from homeassistant.const import (
 from homeassistant.components import group
 
 DOMAIN = 'switch'
-
+DEPENDENCIES = ['group']
 SCAN_INTERVAL = timedelta(seconds=30)
 
 GROUP_NAME_ALL_SWITCHES = 'all switches'
diff --git a/homeassistant/components/switchbot/switch.py b/homeassistant/components/switchbot/switch.py
index eea96b58925..3db9b5fd226 100644
--- a/homeassistant/components/switchbot/switch.py
+++ b/homeassistant/components/switchbot/switch.py
@@ -8,7 +8,7 @@ from homeassistant.components.switch import SwitchDevice, PLATFORM_SCHEMA
 from homeassistant.const import CONF_NAME, CONF_MAC
 from homeassistant.helpers.restore_state import RestoreEntity
 
-
+REQUIREMENTS = ['PySwitchbot==0.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/switchmate/switch.py b/homeassistant/components/switchmate/switch.py
index 0b9671c6015..c14a6ca8087 100644
--- a/homeassistant/components/switchmate/switch.py
+++ b/homeassistant/components/switchmate/switch.py
@@ -8,7 +8,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.components.switch import SwitchDevice, PLATFORM_SCHEMA
 from homeassistant.const import CONF_NAME, CONF_MAC
 
-
+REQUIREMENTS = ['pySwitchmate==0.4.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/syncthru/sensor.py b/homeassistant/components/syncthru/sensor.py
index 9a170ad6fd8..5596d4ab86a 100644
--- a/homeassistant/components/syncthru/sensor.py
+++ b/homeassistant/components/syncthru/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 
-
+REQUIREMENTS = ['pysyncthru==0.3.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/synology/camera.py b/homeassistant/components/synology/camera.py
index ba5da5b747d..c452f60cc2a 100644
--- a/homeassistant/components/synology/camera.py
+++ b/homeassistant/components/synology/camera.py
@@ -14,7 +14,7 @@ from homeassistant.helpers.aiohttp_client import (
     async_get_clientsession)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['py-synology==0.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/synology_srm/device_tracker.py b/homeassistant/components/synology_srm/device_tracker.py
index 7b214c96fa3..bf5653d681b 100644
--- a/homeassistant/components/synology_srm/device_tracker.py
+++ b/homeassistant/components/synology_srm/device_tracker.py
@@ -13,7 +13,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_USERNAME, CONF_PASSWORD,
     CONF_PORT, CONF_SSL, CONF_VERIFY_SSL)
 
-
+REQUIREMENTS = ['synology-srm==0.0.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/synologydsm/sensor.py b/homeassistant/components/synologydsm/sensor.py
index a00dc973bed..0d5a253483f 100644
--- a/homeassistant/components/synologydsm/sensor.py
+++ b/homeassistant/components/synologydsm/sensor.py
@@ -13,7 +13,7 @@ from homeassistant.const import (
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['python-synology==0.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/system_health/__init__.py b/homeassistant/components/system_health/__init__.py
index 26cfb4da613..9a171296ce9 100644
--- a/homeassistant/components/system_health/__init__.py
+++ b/homeassistant/components/system_health/__init__.py
@@ -14,7 +14,7 @@ from homeassistant.loader import bind_hass
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['http']
 DOMAIN = 'system_health'
 
 INFO_CALLBACK_TIMEOUT = 5
diff --git a/homeassistant/components/system_log/__init__.py b/homeassistant/components/system_log/__init__.py
index 6c3e1cf6085..d6877c32f0d 100644
--- a/homeassistant/components/system_log/__init__.py
+++ b/homeassistant/components/system_log/__init__.py
@@ -20,7 +20,7 @@ CONF_LOGGER = 'logger'
 DATA_SYSTEM_LOG = 'system_log'
 DEFAULT_MAX_ENTRIES = 50
 DEFAULT_FIRE_EVENT = False
-
+DEPENDENCIES = ['http']
 DOMAIN = 'system_log'
 
 EVENT_SYSTEM_LOG = 'system_log_event'
diff --git a/homeassistant/components/systemmonitor/sensor.py b/homeassistant/components/systemmonitor/sensor.py
index db465ff359c..cf65daa4395 100644
--- a/homeassistant/components/systemmonitor/sensor.py
+++ b/homeassistant/components/systemmonitor/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['psutil==5.6.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sytadin/sensor.py b/homeassistant/components/sytadin/sensor.py
index 139c643b14f..517deda7ca2 100644
--- a/homeassistant/components/sytadin/sensor.py
+++ b/homeassistant/components/sytadin/sensor.py
@@ -13,7 +13,7 @@ from homeassistant.const import (
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['beautifulsoup4==4.7.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tado/__init__.py b/homeassistant/components/tado/__init__.py
index 835b2ba198b..8d3f541972e 100644
--- a/homeassistant/components/tado/__init__.py
+++ b/homeassistant/components/tado/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.helpers import config_validation as cv
 from homeassistant.const import CONF_USERNAME, CONF_PASSWORD
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['python-tado==0.2.9']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tahoma/__init__.py b/homeassistant/components/tahoma/__init__.py
index 943b2809d8a..1807667da87 100644
--- a/homeassistant/components/tahoma/__init__.py
+++ b/homeassistant/components/tahoma/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.helpers import discovery
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['tahoma-api==0.0.14']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tahoma/binary_sensor.py b/homeassistant/components/tahoma/binary_sensor.py
index 74590eef9e0..948c6f90a58 100644
--- a/homeassistant/components/tahoma/binary_sensor.py
+++ b/homeassistant/components/tahoma/binary_sensor.py
@@ -7,7 +7,7 @@ from homeassistant.const import ATTR_BATTERY_LEVEL, STATE_OFF, STATE_ON
 
 from . import DOMAIN as TAHOMA_DOMAIN, TahomaDevice
 
-
+DEPENDENCIES = ['tahoma']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tahoma/cover.py b/homeassistant/components/tahoma/cover.py
index 8a3a4853a6a..85e785f9ca3 100644
--- a/homeassistant/components/tahoma/cover.py
+++ b/homeassistant/components/tahoma/cover.py
@@ -7,7 +7,7 @@ from homeassistant.util.dt import utcnow
 
 from . import DOMAIN as TAHOMA_DOMAIN, TahomaDevice
 
-
+DEPENDENCIES = ['tahoma']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tahoma/scene.py b/homeassistant/components/tahoma/scene.py
index 28d773d3cb2..eedb95d1a77 100644
--- a/homeassistant/components/tahoma/scene.py
+++ b/homeassistant/components/tahoma/scene.py
@@ -5,7 +5,7 @@ from homeassistant.components.scene import Scene
 
 from . import DOMAIN as TAHOMA_DOMAIN
 
-
+DEPENDENCIES = ['tahoma']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tahoma/sensor.py b/homeassistant/components/tahoma/sensor.py
index d62d5a4cd01..3c03911804a 100644
--- a/homeassistant/components/tahoma/sensor.py
+++ b/homeassistant/components/tahoma/sensor.py
@@ -7,7 +7,7 @@ from homeassistant.helpers.entity import Entity
 
 from . import DOMAIN as TAHOMA_DOMAIN, TahomaDevice
 
-
+DEPENDENCIES = ['tahoma']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tahoma/switch.py b/homeassistant/components/tahoma/switch.py
index 4b3c179b96d..71f00ed8937 100644
--- a/homeassistant/components/tahoma/switch.py
+++ b/homeassistant/components/tahoma/switch.py
@@ -6,7 +6,7 @@ from homeassistant.const import STATE_OFF, STATE_ON
 
 from . import DOMAIN as TAHOMA_DOMAIN, TahomaDevice
 
-
+DEPENDENCIES = ['tahoma']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tapsaff/binary_sensor.py b/homeassistant/components/tapsaff/binary_sensor.py
index ea3755c3eac..639e9574ed9 100644
--- a/homeassistant/components/tapsaff/binary_sensor.py
+++ b/homeassistant/components/tapsaff/binary_sensor.py
@@ -9,7 +9,7 @@ from homeassistant.components.binary_sensor import (
 from homeassistant.const import CONF_NAME
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['tapsaff==0.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tautulli/sensor.py b/homeassistant/components/tautulli/sensor.py
index 7c3f67910da..44be10749bf 100644
--- a/homeassistant/components/tautulli/sensor.py
+++ b/homeassistant/components/tautulli/sensor.py
@@ -14,7 +14,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['pytautulli==0.5.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ted5000/sensor.py b/homeassistant/components/ted5000/sensor.py
index eb3d0adcd89..fba9866302d 100644
--- a/homeassistant/components/ted5000/sensor.py
+++ b/homeassistant/components/ted5000/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['xmltodict==0.11.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/telegram/notify.py b/homeassistant/components/telegram/notify.py
index eab83791fbe..3602bbd2441 100644
--- a/homeassistant/components/telegram/notify.py
+++ b/homeassistant/components/telegram/notify.py
@@ -12,7 +12,7 @@ from homeassistant.components.notify import (
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'telegram_bot'
-
+DEPENDENCIES = [DOMAIN]
 
 ATTR_KEYBOARD = 'keyboard'
 ATTR_INLINE_KEYBOARD = 'inline_keyboard'
diff --git a/homeassistant/components/telegram_bot/__init__.py b/homeassistant/components/telegram_bot/__init__.py
index 76877dc2c27..7d19e8212b6 100644
--- a/homeassistant/components/telegram_bot/__init__.py
+++ b/homeassistant/components/telegram_bot/__init__.py
@@ -16,7 +16,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.exceptions import TemplateError
 
-
+REQUIREMENTS = ['python-telegram-bot==11.1.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/telegram_bot/webhooks.py b/homeassistant/components/telegram_bot/webhooks.py
index 0595e5d40c7..424ece81549 100644
--- a/homeassistant/components/telegram_bot/webhooks.py
+++ b/homeassistant/components/telegram_bot/webhooks.py
@@ -15,7 +15,7 @@ from . import (
     CONF_ALLOWED_CHAT_IDS, PLATFORM_SCHEMA, BaseTelegramBotEntity,
     initialize_bot)
 
-
+DEPENDENCIES = ['http']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tellduslive/__init__.py b/homeassistant/components/tellduslive/__init__.py
index 51b9152abf8..64f4a0102a1 100644
--- a/homeassistant/components/tellduslive/__init__.py
+++ b/homeassistant/components/tellduslive/__init__.py
@@ -19,7 +19,7 @@ from .const import (
 
 APPLICATION_NAME = 'Home Assistant'
 
-
+REQUIREMENTS = ['tellduslive==0.10.10']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tellstick/__init__.py b/homeassistant/components/tellstick/__init__.py
index d0606f2b507..c35d2f79027 100644
--- a/homeassistant/components/tellstick/__init__.py
+++ b/homeassistant/components/tellstick/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['tellcore-py==1.1.2', 'tellcore-net==0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tellstick/sensor.py b/homeassistant/components/tellstick/sensor.py
index 31a21f8be99..0438ad79abc 100644
--- a/homeassistant/components/tellstick/sensor.py
+++ b/homeassistant/components/tellstick/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.const import TEMP_CELSIUS, CONF_ID, CONF_NAME
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-
+DEPENDENCIES = ['tellstick']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/temper/sensor.py b/homeassistant/components/temper/sensor.py
index f5bf23d8a30..1c6cb9fdff4 100644
--- a/homeassistant/components/temper/sensor.py
+++ b/homeassistant/components/temper/sensor.py
@@ -8,7 +8,7 @@ from homeassistant.helpers.entity import Entity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['temperusb==1.5.3']
 
 CONF_SCALE = 'scale'
 CONF_OFFSET = 'offset'
diff --git a/homeassistant/components/tensorflow/image_processing.py b/homeassistant/components/tensorflow/image_processing.py
index feb5df7d4f4..4e4a80a525e 100644
--- a/homeassistant/components/tensorflow/image_processing.py
+++ b/homeassistant/components/tensorflow/image_processing.py
@@ -12,7 +12,7 @@ from homeassistant.core import split_entity_id
 from homeassistant.helpers import template
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['numpy==1.16.2', 'pillow==5.4.1', 'protobuf==3.6.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tesla/__init__.py b/homeassistant/components/tesla/__init__.py
index 3304c344a83..244538f5f46 100644
--- a/homeassistant/components/tesla/__init__.py
+++ b/homeassistant/components/tesla/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.helpers import discovery
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import slugify
 
-
+REQUIREMENTS = ['teslajsonpy==0.0.25']
 
 DOMAIN = 'tesla'
 
diff --git a/homeassistant/components/tesla/binary_sensor.py b/homeassistant/components/tesla/binary_sensor.py
index 18ef6288069..a87239d2430 100644
--- a/homeassistant/components/tesla/binary_sensor.py
+++ b/homeassistant/components/tesla/binary_sensor.py
@@ -8,7 +8,7 @@ from . import DOMAIN as TESLA_DOMAIN, TeslaDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['tesla']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/tesla/climate.py b/homeassistant/components/tesla/climate.py
index 080515e34ad..603ce1a4d61 100644
--- a/homeassistant/components/tesla/climate.py
+++ b/homeassistant/components/tesla/climate.py
@@ -11,7 +11,7 @@ from . import DOMAIN as TESLA_DOMAIN, TeslaDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['tesla']
 
 OPERATION_LIST = [STATE_ON, STATE_OFF]
 
diff --git a/homeassistant/components/tesla/device_tracker.py b/homeassistant/components/tesla/device_tracker.py
index b52b0163a6c..5a7693d8370 100644
--- a/homeassistant/components/tesla/device_tracker.py
+++ b/homeassistant/components/tesla/device_tracker.py
@@ -8,7 +8,7 @@ from . import DOMAIN as TESLA_DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['tesla']
 
 
 def setup_scanner(hass, config, see, discovery_info=None):
diff --git a/homeassistant/components/tesla/lock.py b/homeassistant/components/tesla/lock.py
index aafd445b76d..ade394496d6 100644
--- a/homeassistant/components/tesla/lock.py
+++ b/homeassistant/components/tesla/lock.py
@@ -8,7 +8,7 @@ from . import DOMAIN as TESLA_DOMAIN, TeslaDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['tesla']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/tesla/sensor.py b/homeassistant/components/tesla/sensor.py
index e8f419ce57b..99705d3f793 100644
--- a/homeassistant/components/tesla/sensor.py
+++ b/homeassistant/components/tesla/sensor.py
@@ -11,7 +11,7 @@ from . import DOMAIN as TESLA_DOMAIN, TeslaDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['tesla']
 
 SCAN_INTERVAL = timedelta(minutes=5)
 
diff --git a/homeassistant/components/tesla/switch.py b/homeassistant/components/tesla/switch.py
index 5c8982781b6..e00164ff1a7 100644
--- a/homeassistant/components/tesla/switch.py
+++ b/homeassistant/components/tesla/switch.py
@@ -7,7 +7,7 @@ from homeassistant.const import STATE_OFF, STATE_ON
 from . import DOMAIN as TESLA_DOMAIN, TeslaDevice
 
 _LOGGER = logging.getLogger(__name__)
-
+DEPENDENCIES = ['tesla']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/tfiac/climate.py b/homeassistant/components/tfiac/climate.py
index fa69c217902..44fa1909823 100644
--- a/homeassistant/components/tfiac/climate.py
+++ b/homeassistant/components/tfiac/climate.py
@@ -13,7 +13,7 @@ from homeassistant.components.climate.const import (
 from homeassistant.const import ATTR_TEMPERATURE, CONF_HOST, TEMP_FAHRENHEIT
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pytfiac==0.3']
 
 SCAN_INTERVAL = timedelta(seconds=60)
 
diff --git a/homeassistant/components/thermoworks_smoke/sensor.py b/homeassistant/components/thermoworks_smoke/sensor.py
index b3bdb145cf5..0c6cddd9fcd 100644
--- a/homeassistant/components/thermoworks_smoke/sensor.py
+++ b/homeassistant/components/thermoworks_smoke/sensor.py
@@ -17,7 +17,7 @@ from homeassistant.const import TEMP_FAHRENHEIT, CONF_EMAIL, CONF_PASSWORD,\
     CONF_MONITORED_CONDITIONS, CONF_EXCLUDE, ATTR_BATTERY_LEVEL
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['thermoworks_smoke==0.1.8', 'stringcase==1.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/thethingsnetwork/sensor.py b/homeassistant/components/thethingsnetwork/sensor.py
index c6611c2e3cb..d59b429721b 100644
--- a/homeassistant/components/thethingsnetwork/sensor.py
+++ b/homeassistant/components/thethingsnetwork/sensor.py
@@ -22,7 +22,7 @@ ATTR_RAW = 'raw'
 ATTR_TIME = 'time'
 
 DEFAULT_TIMEOUT = 10
-
+DEPENDENCIES = ['thethingsnetwork']
 
 CONF_DEVICE_ID = 'device_id'
 CONF_VALUES = 'values'
diff --git a/homeassistant/components/thingspeak/__init__.py b/homeassistant/components/thingspeak/__init__.py
index 6e22e6158f3..0fa15e7efb4 100644
--- a/homeassistant/components/thingspeak/__init__.py
+++ b/homeassistant/components/thingspeak/__init__.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
 from homeassistant.helpers import event, state as state_helper
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['thingspeak==0.4.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/thinkingcleaner/sensor.py b/homeassistant/components/thinkingcleaner/sensor.py
index 0f4a90c32a9..f8462435a45 100644
--- a/homeassistant/components/thinkingcleaner/sensor.py
+++ b/homeassistant/components/thinkingcleaner/sensor.py
@@ -7,7 +7,7 @@ from homeassistant.helpers.entity import Entity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['pythinkingcleaner==0.0.3']
 
 MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
 MIN_TIME_BETWEEN_FORCED_SCANS = timedelta(milliseconds=100)
diff --git a/homeassistant/components/thinkingcleaner/switch.py b/homeassistant/components/thinkingcleaner/switch.py
index 006b5a7ad5b..38a96eb0298 100644
--- a/homeassistant/components/thinkingcleaner/switch.py
+++ b/homeassistant/components/thinkingcleaner/switch.py
@@ -9,7 +9,7 @@ from homeassistant.helpers.entity import ToggleEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['pythinkingcleaner==0.0.3']
 
 MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
 MIN_TIME_BETWEEN_FORCED_SCANS = timedelta(milliseconds=100)
diff --git a/homeassistant/components/tibber/__init__.py b/homeassistant/components/tibber/__init__.py
index 822dfb7e497..19cf6fe6525 100644
--- a/homeassistant/components/tibber/__init__.py
+++ b/homeassistant/components/tibber/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.const import (EVENT_HOMEASSISTANT_STOP, CONF_ACCESS_TOKEN,
 from homeassistant.helpers import discovery
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
-
+REQUIREMENTS = ['pyTibber==0.10.1']
 
 DOMAIN = 'tibber'
 
diff --git a/homeassistant/components/tikteck/light.py b/homeassistant/components/tikteck/light.py
index 7aa2a1d11ba..4f5596c71be 100644
--- a/homeassistant/components/tikteck/light.py
+++ b/homeassistant/components/tikteck/light.py
@@ -10,7 +10,7 @@ from homeassistant.components.light import (
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 
-
+REQUIREMENTS = ['tikteck==0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tile/device_tracker.py b/homeassistant/components/tile/device_tracker.py
index 41e2330b436..c471c1e23b4 100644
--- a/homeassistant/components/tile/device_tracker.py
+++ b/homeassistant/components/tile/device_tracker.py
@@ -13,7 +13,7 @@ from homeassistant.util import slugify
 from homeassistant.util.json import load_json, save_json
 
 _LOGGER = logging.getLogger(__name__)
-
+REQUIREMENTS = ['pytile==2.0.6']
 
 CLIENT_UUID_CONFIG_FILE = '.tile.conf'
 DEVICE_TYPES = ['PHONE', 'TILE']
diff --git a/homeassistant/components/todoist/calendar.py b/homeassistant/components/todoist/calendar.py
index 8ad2f4371df..313935e1221 100644
--- a/homeassistant/components/todoist/calendar.py
+++ b/homeassistant/components/todoist/calendar.py
@@ -12,7 +12,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.template import DATE_STR_FORMAT
 from homeassistant.util import Throttle, dt
 
-
+REQUIREMENTS = ['todoist-python==7.0.17']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tof/sensor.py b/homeassistant/components/tof/sensor.py
index 16d9592dab3..a403db03682 100644
--- a/homeassistant/components/tof/sensor.py
+++ b/homeassistant/components/tof/sensor.py
@@ -12,9 +12,9 @@ from homeassistant.components import rpi_gpio
 from homeassistant.const import CONF_NAME
 from homeassistant.helpers.entity import Entity
 
+REQUIREMENTS = ['VL53L1X2==0.1.5']
 
-
-
+DEPENDENCIES = ['rpi_gpio']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/toon/__init__.py b/homeassistant/components/toon/__init__.py
index 74851f095d4..d718b5895e4 100644
--- a/homeassistant/components/toon/__init__.py
+++ b/homeassistant/components/toon/__init__.py
@@ -16,7 +16,7 @@ from .const import (
     CONF_CLIENT_ID, CONF_CLIENT_SECRET, CONF_DISPLAY, CONF_TENANT,
     DATA_TOON_CLIENT, DATA_TOON_CONFIG, DOMAIN)
 
-
+REQUIREMENTS = ['toonapilib==3.2.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/toon/binary_sensor.py b/homeassistant/components/toon/binary_sensor.py
index 6e7a36a8c99..694b7d1d033 100644
--- a/homeassistant/components/toon/binary_sensor.py
+++ b/homeassistant/components/toon/binary_sensor.py
@@ -12,7 +12,7 @@ from . import (ToonEntity, ToonDisplayDeviceEntity, ToonBoilerDeviceEntity,
                ToonBoilerModuleDeviceEntity)
 from .const import DATA_TOON_CLIENT, DOMAIN
 
-
+DEPENDENCIES = ['toon']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/toon/climate.py b/homeassistant/components/toon/climate.py
index e027cd58693..f09dc010c79 100644
--- a/homeassistant/components/toon/climate.py
+++ b/homeassistant/components/toon/climate.py
@@ -15,7 +15,7 @@ from homeassistant.helpers.typing import HomeAssistantType
 from . import ToonDisplayDeviceEntity
 from .const import DATA_TOON_CLIENT, DEFAULT_MAX_TEMP, DEFAULT_MIN_TEMP, DOMAIN
 
-
+DEPENDENCIES = ['toon']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/toon/sensor.py b/homeassistant/components/toon/sensor.py
index 71bf72de001..f58c8ef4840 100644
--- a/homeassistant/components/toon/sensor.py
+++ b/homeassistant/components/toon/sensor.py
@@ -11,7 +11,7 @@ from . import (ToonEntity, ToonElectricityMeterDeviceEntity,
 from .const import (CURRENCY_EUR, DATA_TOON_CLIENT, DOMAIN, POWER_KWH,
                     POWER_WATT, VOLUME_CM3, VOLUME_M3, RATIO_PERCENT)
 
-
+DEPENDENCIES = ['toon']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/torque/sensor.py b/homeassistant/components/torque/sensor.py
index 00cb2948d56..2f947c178b8 100644
--- a/homeassistant/components/torque/sensor.py
+++ b/homeassistant/components/torque/sensor.py
@@ -16,7 +16,7 @@ _LOGGER = logging.getLogger(__name__)
 API_PATH = '/api/torque'
 
 DEFAULT_NAME = 'vehicle'
-
+DEPENDENCIES = ['http']
 DOMAIN = 'torque'
 
 ENTITY_NAME_FORMAT = '{0} {1}'
diff --git a/homeassistant/components/totalconnect/alarm_control_panel.py b/homeassistant/components/totalconnect/alarm_control_panel.py
index b55b3a447c5..c56c4ed95a6 100644
--- a/homeassistant/components/totalconnect/alarm_control_panel.py
+++ b/homeassistant/components/totalconnect/alarm_control_panel.py
@@ -13,7 +13,7 @@ from homeassistant.const import (
     STATE_ALARM_ARMED_CUSTOM_BYPASS)
 
 
-
+REQUIREMENTS = ['total_connect_client==0.25']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/touchline/climate.py b/homeassistant/components/touchline/climate.py
index d30efaa01e4..e003ea257d7 100644
--- a/homeassistant/components/touchline/climate.py
+++ b/homeassistant/components/touchline/climate.py
@@ -9,7 +9,7 @@ from homeassistant.components.climate.const import (
 from homeassistant.const import CONF_HOST, TEMP_CELSIUS, ATTR_TEMPERATURE
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pytouchline==0.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tplink/__init__.py b/homeassistant/components/tplink/__init__.py
index f1eb03dca7d..9fc12db0d63 100644
--- a/homeassistant/components/tplink/__init__.py
+++ b/homeassistant/components/tplink/__init__.py
@@ -33,7 +33,7 @@ CONFIG_SCHEMA = vol.Schema({
     }),
 }, extra=vol.ALLOW_EXTRA)
 
-
+REQUIREMENTS = ['pyHS100==0.3.4']
 
 
 async def _async_has_devices(hass):
diff --git a/homeassistant/components/tplink/device_tracker.py b/homeassistant/components/tplink/device_tracker.py
index 2c7cae4d296..7f5c4a37d24 100644
--- a/homeassistant/components/tplink/device_tracker.py
+++ b/homeassistant/components/tplink/device_tracker.py
@@ -17,7 +17,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_PASSWORD, CONF_USERNAME, HTTP_HEADER_X_REQUESTED_WITH)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['tplink==0.2.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tplink/light.py b/homeassistant/components/tplink/light.py
index d4eae3e6dc7..9f13766c4ef 100644
--- a/homeassistant/components/tplink/light.py
+++ b/homeassistant/components/tplink/light.py
@@ -12,7 +12,7 @@ from homeassistant.util.color import (
 
 from . import CONF_LIGHT, DOMAIN as TPLINK_DOMAIN
 
-
+DEPENDENCIES = ['tplink']
 
 PARALLEL_UPDATES = 0
 
diff --git a/homeassistant/components/tplink/switch.py b/homeassistant/components/tplink/switch.py
index 95f8e811bba..a4eeadd1c60 100644
--- a/homeassistant/components/tplink/switch.py
+++ b/homeassistant/components/tplink/switch.py
@@ -9,7 +9,7 @@ import homeassistant.helpers.device_registry as dr
 
 from . import CONF_SWITCH, DOMAIN as TPLINK_DOMAIN
 
-
+DEPENDENCIES = ['tplink']
 
 PARALLEL_UPDATES = 0
 
diff --git a/homeassistant/components/tplink_lte/__init__.py b/homeassistant/components/tplink_lte/__init__.py
index da50c7b425b..ae0b73d1c7c 100644
--- a/homeassistant/components/tplink_lte/__init__.py
+++ b/homeassistant/components/tplink_lte/__init__.py
@@ -14,7 +14,7 @@ from homeassistant.core import callback
 from homeassistant.helpers import config_validation as cv, discovery
 from homeassistant.helpers.aiohttp_client import async_create_clientsession
 
-
+REQUIREMENTS = ['tp-connected==0.0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tplink_lte/notify.py b/homeassistant/components/tplink_lte/notify.py
index 3fdbd2ccddf..519641ed34b 100644
--- a/homeassistant/components/tplink_lte/notify.py
+++ b/homeassistant/components/tplink_lte/notify.py
@@ -9,7 +9,7 @@ from homeassistant.const import CONF_RECIPIENT
 
 from ..tplink_lte import DATA_KEY
 
-
+DEPENDENCIES = ['tplink_lte']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/traccar/device_tracker.py b/homeassistant/components/traccar/device_tracker.py
index 0fbf9886f11..28d13dd4fe6 100644
--- a/homeassistant/components/traccar/device_tracker.py
+++ b/homeassistant/components/traccar/device_tracker.py
@@ -16,7 +16,7 @@ from homeassistant.helpers.event import async_track_time_interval
 from homeassistant.util import slugify
 
 
-
+REQUIREMENTS = ['pytraccar==0.5.0', 'stringcase==1.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/trackr/device_tracker.py b/homeassistant/components/trackr/device_tracker.py
index fc3828068d6..1322fde7e1a 100644
--- a/homeassistant/components/trackr/device_tracker.py
+++ b/homeassistant/components/trackr/device_tracker.py
@@ -11,7 +11,7 @@ from homeassistant.util import slugify
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['pytrackr==0.0.5']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_USERNAME): cv.string,
diff --git a/homeassistant/components/tradfri/__init__.py b/homeassistant/components/tradfri/__init__.py
index e334d4d4ddc..b14bc811754 100644
--- a/homeassistant/components/tradfri/__init__.py
+++ b/homeassistant/components/tradfri/__init__.py
@@ -13,7 +13,7 @@ from .const import (
 
 from . import config_flow  # noqa  pylint_disable=unused-import
 
-
+REQUIREMENTS = ['pytradfri[async]==6.0.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tradfri/light.py b/homeassistant/components/tradfri/light.py
index b05a71567bc..07ab4806dfc 100644
--- a/homeassistant/components/tradfri/light.py
+++ b/homeassistant/components/tradfri/light.py
@@ -17,7 +17,7 @@ ATTR_DIMMER = 'dimmer'
 ATTR_HUE = 'hue'
 ATTR_SAT = 'saturation'
 ATTR_TRANSITION_TIME = 'transition_time'
-
+DEPENDENCIES = ['tradfri']
 PLATFORM_SCHEMA = LIGHT_PLATFORM_SCHEMA
 IKEA = 'IKEA of Sweden'
 TRADFRI_LIGHT_MANAGER = 'Tradfri Light Manager'
diff --git a/homeassistant/components/tradfri/sensor.py b/homeassistant/components/tradfri/sensor.py
index 636d0115295..acc84a93590 100644
--- a/homeassistant/components/tradfri/sensor.py
+++ b/homeassistant/components/tradfri/sensor.py
@@ -9,7 +9,7 @@ from . import KEY_API, KEY_GATEWAY
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['tradfri']
 
 SCAN_INTERVAL = timedelta(minutes=5)
 
diff --git a/homeassistant/components/tradfri/switch.py b/homeassistant/components/tradfri/switch.py
index 96c46027150..ef9a9537cff 100644
--- a/homeassistant/components/tradfri/switch.py
+++ b/homeassistant/components/tradfri/switch.py
@@ -9,7 +9,7 @@ from .const import CONF_GATEWAY_ID
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['tradfri']
 IKEA = 'IKEA of Sweden'
 TRADFRI_SWITCH_MANAGER = 'Tradfri Switch Manager'
 
diff --git a/homeassistant/components/trafikverket_weatherstation/sensor.py b/homeassistant/components/trafikverket_weatherstation/sensor.py
index 205d0fe7d9b..bf8f4c803e0 100644
--- a/homeassistant/components/trafikverket_weatherstation/sensor.py
+++ b/homeassistant/components/trafikverket_weatherstation/sensor.py
@@ -16,7 +16,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['pytrafikverket==0.1.5.9']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/transmission/__init__.py b/homeassistant/components/transmission/__init__.py
index 4c095b1256b..25e21dc3d8a 100644
--- a/homeassistant/components/transmission/__init__.py
+++ b/homeassistant/components/transmission/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.helpers import config_validation as cv, discovery
 from homeassistant.helpers.dispatcher import dispatcher_send
 from homeassistant.helpers.event import track_time_interval
 
-
+REQUIREMENTS = ['transmissionrpc==0.11']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/transmission/sensor.py b/homeassistant/components/transmission/sensor.py
index 362ea122007..dfd4c195097 100644
--- a/homeassistant/components/transmission/sensor.py
+++ b/homeassistant/components/transmission/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.helpers.entity import Entity
 
 from . import DATA_TRANSMISSION, DATA_UPDATED, SENSOR_TYPES
 
-
+DEPENDENCIES = ['transmission']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/transmission/switch.py b/homeassistant/components/transmission/switch.py
index 9c3b14cd552..854a2e727b0 100644
--- a/homeassistant/components/transmission/switch.py
+++ b/homeassistant/components/transmission/switch.py
@@ -8,7 +8,7 @@ from homeassistant.helpers.entity import ToggleEntity
 
 from . import DATA_TRANSMISSION, DATA_UPDATED
 
-
+DEPENDENCIES = ['transmission']
 
 _LOGGING = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/transport_nsw/sensor.py b/homeassistant/components/transport_nsw/sensor.py
index 9ba5d95ab3d..3c40bf4f709 100644
--- a/homeassistant/components/transport_nsw/sensor.py
+++ b/homeassistant/components/transport_nsw/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (CONF_NAME, CONF_API_KEY, ATTR_ATTRIBUTION)
 
-
+REQUIREMENTS = ['PyTransportNSW==0.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/travisci/sensor.py b/homeassistant/components/travisci/sensor.py
index 0a69df9544d..99309f7e2b7 100644
--- a/homeassistant/components/travisci/sensor.py
+++ b/homeassistant/components/travisci/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
     CONF_MONITORED_CONDITIONS)
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['TravisPy==0.3.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/trend/binary_sensor.py b/homeassistant/components/trend/binary_sensor.py
index c981bae9d29..163703373d3 100644
--- a/homeassistant/components/trend/binary_sensor.py
+++ b/homeassistant/components/trend/binary_sensor.py
@@ -17,7 +17,7 @@ from homeassistant.helpers.entity import generate_entity_id
 from homeassistant.helpers.event import async_track_state_change
 from homeassistant.util import utcnow
 
-
+REQUIREMENTS = ['numpy==1.16.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tts/__init__.py b/homeassistant/components/tts/__init__.py
index e599a2590cc..763baa262be 100644
--- a/homeassistant/components/tts/__init__.py
+++ b/homeassistant/components/tts/__init__.py
@@ -24,7 +24,7 @@ from homeassistant.helpers import config_per_platform
 import homeassistant.helpers.config_validation as cv
 from homeassistant.setup import async_prepare_setup_platform
 
-
+REQUIREMENTS = ['mutagen==1.42.0']
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -43,7 +43,7 @@ CONF_BASE_URL = 'base_url'
 DEFAULT_CACHE = True
 DEFAULT_CACHE_DIR = 'tts'
 DEFAULT_TIME_MEMORY = 300
-
+DEPENDENCIES = ['http']
 DOMAIN = 'tts'
 
 MEM_CACHE_FILENAME = 'filename'
diff --git a/homeassistant/components/tuya/__init__.py b/homeassistant/components/tuya/__init__.py
index 409f9011304..117424fd55e 100644
--- a/homeassistant/components/tuya/__init__.py
+++ b/homeassistant/components/tuya/__init__.py
@@ -12,7 +12,7 @@ from homeassistant.helpers.dispatcher import (
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import track_time_interval
 
-
+REQUIREMENTS = ['tuyapy==0.1.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tuya/climate.py b/homeassistant/components/tuya/climate.py
index 16e4d0686dc..b7a10dad862 100644
--- a/homeassistant/components/tuya/climate.py
+++ b/homeassistant/components/tuya/climate.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
 
 from . import DATA_TUYA, TuyaDevice
 
-
+DEPENDENCIES = ['tuya']
 DEVICE_TYPE = 'climate'
 
 HA_STATE_TO_TUYA = {
diff --git a/homeassistant/components/tuya/cover.py b/homeassistant/components/tuya/cover.py
index 6ca29ce9610..274f4d93869 100644
--- a/homeassistant/components/tuya/cover.py
+++ b/homeassistant/components/tuya/cover.py
@@ -4,7 +4,7 @@ from homeassistant.components.cover import (
 
 from . import DATA_TUYA, TuyaDevice
 
-
+DEPENDENCIES = ['tuya']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/tuya/fan.py b/homeassistant/components/tuya/fan.py
index 1c5d8251787..259417869dc 100644
--- a/homeassistant/components/tuya/fan.py
+++ b/homeassistant/components/tuya/fan.py
@@ -5,7 +5,7 @@ from homeassistant.const import STATE_OFF
 
 from . import DATA_TUYA, TuyaDevice
 
-
+DEPENDENCIES = ['tuya']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/tuya/light.py b/homeassistant/components/tuya/light.py
index f0431834a70..17f9b43dcbe 100644
--- a/homeassistant/components/tuya/light.py
+++ b/homeassistant/components/tuya/light.py
@@ -6,7 +6,7 @@ from homeassistant.util import color as colorutil
 
 from . import DATA_TUYA, TuyaDevice
 
-
+DEPENDENCIES = ['tuya']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/tuya/scene.py b/homeassistant/components/tuya/scene.py
index 074867e6ffd..24383dca6e4 100644
--- a/homeassistant/components/tuya/scene.py
+++ b/homeassistant/components/tuya/scene.py
@@ -3,7 +3,7 @@ from homeassistant.components.scene import DOMAIN, Scene
 
 from . import DATA_TUYA, TuyaDevice
 
-
+DEPENDENCIES = ['tuya']
 
 ENTITY_ID_FORMAT = DOMAIN + '.{}'
 
diff --git a/homeassistant/components/tuya/switch.py b/homeassistant/components/tuya/switch.py
index 52a51e8b968..c2e32eedc59 100644
--- a/homeassistant/components/tuya/switch.py
+++ b/homeassistant/components/tuya/switch.py
@@ -3,7 +3,7 @@ from homeassistant.components.switch import ENTITY_ID_FORMAT, SwitchDevice
 
 from . import DATA_TUYA, TuyaDevice
 
-
+DEPENDENCIES = ['tuya']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/twilio/__init__.py b/homeassistant/components/twilio/__init__.py
index f635514a754..e7ba06a05f7 100644
--- a/homeassistant/components/twilio/__init__.py
+++ b/homeassistant/components/twilio/__init__.py
@@ -5,8 +5,8 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.const import CONF_WEBHOOK_ID
 from homeassistant.helpers import config_entry_flow
 
-
-
+REQUIREMENTS = ['twilio==6.19.1']
+DEPENDENCIES = ['webhook']
 
 DOMAIN = 'twilio'
 
diff --git a/homeassistant/components/twilio_call/notify.py b/homeassistant/components/twilio_call/notify.py
index 52418a64cbe..ab57d721465 100644
--- a/homeassistant/components/twilio_call/notify.py
+++ b/homeassistant/components/twilio_call/notify.py
@@ -12,7 +12,7 @@ from homeassistant.components.notify import (ATTR_TARGET, PLATFORM_SCHEMA,
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['twilio']
 
 CONF_FROM_NUMBER = 'from_number'
 
diff --git a/homeassistant/components/twilio_sms/notify.py b/homeassistant/components/twilio_sms/notify.py
index 7617401854c..a04e397a568 100644
--- a/homeassistant/components/twilio_sms/notify.py
+++ b/homeassistant/components/twilio_sms/notify.py
@@ -10,7 +10,7 @@ from homeassistant.components.notify import (ATTR_TARGET, PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
 _LOGGER = logging.getLogger(__name__)
-
+DEPENDENCIES = ["twilio"]
 
 
 CONF_FROM_NUMBER = "from_number"
diff --git a/homeassistant/components/twitch/sensor.py b/homeassistant/components/twitch/sensor.py
index 8919bbc397f..123de752d51 100644
--- a/homeassistant/components/twitch/sensor.py
+++ b/homeassistant/components/twitch/sensor.py
@@ -7,7 +7,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['python-twitch-client==0.6.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/twitter/notify.py b/homeassistant/components/twitter/notify.py
index 2c6526d1bd5..54cd591f394 100644
--- a/homeassistant/components/twitter/notify.py
+++ b/homeassistant/components/twitter/notify.py
@@ -15,7 +15,7 @@ from homeassistant.helpers.event import async_track_point_in_time
 from homeassistant.components.notify import (ATTR_DATA, PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-
+REQUIREMENTS = ['TwitterAPI==2.5.9']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ubee/device_tracker.py b/homeassistant/components/ubee/device_tracker.py
index 85e3a710600..f73f58f3a1f 100644
--- a/homeassistant/components/ubee/device_tracker.py
+++ b/homeassistant/components/ubee/device_tracker.py
@@ -9,7 +9,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_PASSWORD, CONF_USERNAME)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pyubee==0.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/uber/sensor.py b/homeassistant/components/uber/sensor.py
index 4140d963f12..87d87de66ee 100644
--- a/homeassistant/components/uber/sensor.py
+++ b/homeassistant/components/uber/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['uber_rides==0.6.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/unifi/__init__.py b/homeassistant/components/unifi/__init__.py
index f89120830eb..7e236789a5c 100644
--- a/homeassistant/components/unifi/__init__.py
+++ b/homeassistant/components/unifi/__init__.py
@@ -16,7 +16,7 @@ DEFAULT_PORT = 8443
 DEFAULT_SITE_ID = 'default'
 DEFAULT_VERIFY_SSL = False
 
-
+REQUIREMENTS = ['aiounifi==4']
 
 
 async def async_setup(hass, config):
diff --git a/homeassistant/components/unifi/device_tracker.py b/homeassistant/components/unifi/device_tracker.py
index d4814e45a0f..49e28114b17 100644
--- a/homeassistant/components/unifi/device_tracker.py
+++ b/homeassistant/components/unifi/device_tracker.py
@@ -10,7 +10,7 @@ from homeassistant.const import CONF_HOST, CONF_USERNAME, CONF_PASSWORD
 from homeassistant.const import CONF_VERIFY_SSL, CONF_MONITORED_CONDITIONS
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['pyunifi==2.16']
 
 _LOGGER = logging.getLogger(__name__)
 CONF_PORT = 'port'
diff --git a/homeassistant/components/unifi/switch.py b/homeassistant/components/unifi/switch.py
index 62129e5c06a..e90da2dbcd8 100644
--- a/homeassistant/components/unifi/switch.py
+++ b/homeassistant/components/unifi/switch.py
@@ -13,7 +13,7 @@ from homeassistant.helpers.device_registry import CONNECTION_NETWORK_MAC
 
 from .const import CONF_CONTROLLER, CONF_SITE_ID, CONTROLLER_ID, DOMAIN
 
-
+DEPENDENCIES = [DOMAIN]
 SCAN_INTERVAL = timedelta(seconds=15)
 
 LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/unifi_direct/device_tracker.py b/homeassistant/components/unifi_direct/device_tracker.py
index 56cfc0f8e26..29a3c58fab9 100644
--- a/homeassistant/components/unifi_direct/device_tracker.py
+++ b/homeassistant/components/unifi_direct/device_tracker.py
@@ -11,7 +11,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_PASSWORD, CONF_USERNAME,
     CONF_PORT)
 
-
+REQUIREMENTS = ['pexpect==4.6.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/upc_connect/device_tracker.py b/homeassistant/components/upc_connect/device_tracker.py
index fa6c59eb35c..4a583b8349a 100644
--- a/homeassistant/components/upc_connect/device_tracker.py
+++ b/homeassistant/components/upc_connect/device_tracker.py
@@ -13,7 +13,7 @@ from homeassistant.const import CONF_HOST, HTTP_HEADER_X_REQUESTED_WITH
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['defusedxml==0.5.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/upcloud/__init__.py b/homeassistant/components/upcloud/__init__.py
index 29e52f6b41c..7981cf948bb 100644
--- a/homeassistant/components/upcloud/__init__.py
+++ b/homeassistant/components/upcloud/__init__.py
@@ -14,7 +14,7 @@ from homeassistant.helpers.dispatcher import (
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import track_time_interval
 
-
+REQUIREMENTS = ['upcloud-api==0.4.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/upcloud/binary_sensor.py b/homeassistant/components/upcloud/binary_sensor.py
index 987870136de..a0c3c9f34c6 100644
--- a/homeassistant/components/upcloud/binary_sensor.py
+++ b/homeassistant/components/upcloud/binary_sensor.py
@@ -11,7 +11,7 @@ from . import CONF_SERVERS, DATA_UPCLOUD, UpCloudServerEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['upcloud']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_SERVERS): vol.All(cv.ensure_list, [cv.string]),
diff --git a/homeassistant/components/upcloud/switch.py b/homeassistant/components/upcloud/switch.py
index 2b2150f0166..7e84adccf55 100644
--- a/homeassistant/components/upcloud/switch.py
+++ b/homeassistant/components/upcloud/switch.py
@@ -11,7 +11,7 @@ from . import CONF_SERVERS, DATA_UPCLOUD, UpCloudServerEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['upcloud']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_SERVERS): vol.All(cv.ensure_list, [cv.string]),
diff --git a/homeassistant/components/updater/__init__.py b/homeassistant/components/updater/__init__.py
index a62a5a5f6fe..cb2646ea942 100644
--- a/homeassistant/components/updater/__init__.py
+++ b/homeassistant/components/updater/__init__.py
@@ -18,7 +18,7 @@ from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['distro==1.4.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/upnp/__init__.py b/homeassistant/components/upnp/__init__.py
index 5e77ebd9bf6..5f4abcb24c7 100644
--- a/homeassistant/components/upnp/__init__.py
+++ b/homeassistant/components/upnp/__init__.py
@@ -23,7 +23,7 @@ from .const import DOMAIN
 from .const import LOGGER as _LOGGER
 from .device import Device
 
-
+REQUIREMENTS = ['async-upnp-client==0.14.7']
 
 NOTIFICATION_ID = 'upnp_notification'
 NOTIFICATION_TITLE = 'UPnP/IGD Setup'
diff --git a/homeassistant/components/upnp/sensor.py b/homeassistant/components/upnp/sensor.py
index cf5ad5ba124..86bcee879b9 100644
--- a/homeassistant/components/upnp/sensor.py
+++ b/homeassistant/components/upnp/sensor.py
@@ -12,7 +12,7 @@ from .const import DOMAIN as DOMAIN_UPNP, SIGNAL_REMOVE_SENSOR
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['upnp']
 
 BYTES_RECEIVED = 'bytes_received'
 BYTES_SENT = 'bytes_sent'
diff --git a/homeassistant/components/ups/sensor.py b/homeassistant/components/ups/sensor.py
index e19fc80bda7..3ed82de41db 100644
--- a/homeassistant/components/ups/sensor.py
+++ b/homeassistant/components/ups/sensor.py
@@ -15,7 +15,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle, slugify
 from homeassistant.util.dt import now, parse_date
 
-
+REQUIREMENTS = ['upsmychoice==1.0.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/uptimerobot/binary_sensor.py b/homeassistant/components/uptimerobot/binary_sensor.py
index ae0decbc88e..8e11966b680 100644
--- a/homeassistant/components/uptimerobot/binary_sensor.py
+++ b/homeassistant/components/uptimerobot/binary_sensor.py
@@ -8,7 +8,7 @@ from homeassistant.components.binary_sensor import (
 from homeassistant.const import ATTR_ATTRIBUTION, CONF_API_KEY
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pyuptimerobot==0.0.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/uscis/sensor.py b/homeassistant/components/uscis/sensor.py
index d6b97d13f2c..501c6c9665c 100644
--- a/homeassistant/components/uscis/sensor.py
+++ b/homeassistant/components/uscis/sensor.py
@@ -13,7 +13,7 @@ from homeassistant.const import CONF_FRIENDLY_NAME
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['uscisstatus==0.1.1']
 
 DEFAULT_NAME = "USCIS"
 
diff --git a/homeassistant/components/usgs_earthquakes_feed/geo_location.py b/homeassistant/components/usgs_earthquakes_feed/geo_location.py
index 9ef5a9c60f2..1d11b1971cc 100644
--- a/homeassistant/components/usgs_earthquakes_feed/geo_location.py
+++ b/homeassistant/components/usgs_earthquakes_feed/geo_location.py
@@ -16,7 +16,7 @@ from homeassistant.helpers.dispatcher import (
     async_dispatcher_connect, dispatcher_send)
 from homeassistant.helpers.event import track_time_interval
 
-
+REQUIREMENTS = ['geojson_client==0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/usps/__init__.py b/homeassistant/components/usps/__init__.py
index 4e70b4d764e..8a7d7d52255 100644
--- a/homeassistant/components/usps/__init__.py
+++ b/homeassistant/components/usps/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.helpers import (config_validation as cv, discovery)
 from homeassistant.util import Throttle
 from homeassistant.util.dt import now
 
-
+REQUIREMENTS = ['myusps==1.3.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/usps/camera.py b/homeassistant/components/usps/camera.py
index aa35a804095..5b5eaca4ce2 100644
--- a/homeassistant/components/usps/camera.py
+++ b/homeassistant/components/usps/camera.py
@@ -8,7 +8,7 @@ from . import DATA_USPS
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['usps']
 
 SCAN_INTERVAL = timedelta(seconds=10)
 
diff --git a/homeassistant/components/usps/sensor.py b/homeassistant/components/usps/sensor.py
index b09d83001c5..3e5fea5c4ee 100644
--- a/homeassistant/components/usps/sensor.py
+++ b/homeassistant/components/usps/sensor.py
@@ -11,7 +11,7 @@ from . import DATA_USPS
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['usps']
 
 STATUS_DELIVERED = 'delivered'
 
diff --git a/homeassistant/components/uvc/camera.py b/homeassistant/components/uvc/camera.py
index 06a584a4bcb..65251054060 100644
--- a/homeassistant/components/uvc/camera.py
+++ b/homeassistant/components/uvc/camera.py
@@ -10,7 +10,7 @@ from homeassistant.components.camera import Camera, PLATFORM_SCHEMA
 import homeassistant.helpers.config_validation as cv
 from homeassistant.exceptions import PlatformNotReady
 
-
+REQUIREMENTS = ['uvcclient==0.11.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/vacuum/__init__.py b/homeassistant/components/vacuum/__init__.py
index d9ea63c40fd..02266986ccf 100644
--- a/homeassistant/components/vacuum/__init__.py
+++ b/homeassistant/components/vacuum/__init__.py
@@ -20,7 +20,7 @@ from homeassistant.helpers.icon import icon_for_battery_level
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'vacuum'
-
+DEPENDENCIES = ['group']
 
 SCAN_INTERVAL = timedelta(seconds=20)
 
diff --git a/homeassistant/components/vasttrafik/sensor.py b/homeassistant/components/vasttrafik/sensor.py
index 2728cc0e4c9..d8e9f1e7675 100644
--- a/homeassistant/components/vasttrafik/sensor.py
+++ b/homeassistant/components/vasttrafik/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.const import CONF_NAME, ATTR_ATTRIBUTION
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['vtjp==0.1.14']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/velbus/__init__.py b/homeassistant/components/velbus/__init__.py
index 8bb7fcd03a2..4e808dc21ca 100644
--- a/homeassistant/components/velbus/__init__.py
+++ b/homeassistant/components/velbus/__init__.py
@@ -7,7 +7,7 @@ from homeassistant.const import EVENT_HOMEASSISTANT_STOP, CONF_PORT
 from homeassistant.helpers.discovery import load_platform
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['python-velbus==2.0.22']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/velbus/binary_sensor.py b/homeassistant/components/velbus/binary_sensor.py
index 4448669add4..cbe1350bd4f 100644
--- a/homeassistant/components/velbus/binary_sensor.py
+++ b/homeassistant/components/velbus/binary_sensor.py
@@ -7,7 +7,7 @@ from . import DOMAIN as VELBUS_DOMAIN, VelbusEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['velbus']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/velbus/climate.py b/homeassistant/components/velbus/climate.py
index dea2dd18a5f..470524bb6f3 100644
--- a/homeassistant/components/velbus/climate.py
+++ b/homeassistant/components/velbus/climate.py
@@ -10,7 +10,7 @@ from . import DOMAIN as VELBUS_DOMAIN, VelbusEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['velbus']
 
 SUPPORT_FLAGS = (SUPPORT_TARGET_TEMPERATURE)
 
diff --git a/homeassistant/components/velbus/cover.py b/homeassistant/components/velbus/cover.py
index d78f62a37d5..b176ab76c4b 100644
--- a/homeassistant/components/velbus/cover.py
+++ b/homeassistant/components/velbus/cover.py
@@ -24,7 +24,7 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_COVERS): cv.schema_with_slug_keys(COVER_SCHEMA),
 })
 
-
+DEPENDENCIES = ['velbus']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/velbus/sensor.py b/homeassistant/components/velbus/sensor.py
index 76268a18dd4..ad78a795a30 100644
--- a/homeassistant/components/velbus/sensor.py
+++ b/homeassistant/components/velbus/sensor.py
@@ -5,7 +5,7 @@ from . import DOMAIN as VELBUS_DOMAIN, VelbusEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['velbus']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/velbus/switch.py b/homeassistant/components/velbus/switch.py
index 14b12f5f2a6..b5ef89ca480 100644
--- a/homeassistant/components/velbus/switch.py
+++ b/homeassistant/components/velbus/switch.py
@@ -7,7 +7,7 @@ from . import DOMAIN as VELBUS_DOMAIN, VelbusEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['velbus']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/velux/__init__.py b/homeassistant/components/velux/__init__.py
index 70fadc685db..a46f62dbd5f 100644
--- a/homeassistant/components/velux/__init__.py
+++ b/homeassistant/components/velux/__init__.py
@@ -12,7 +12,7 @@ DATA_VELUX = "data_velux"
 SUPPORTED_DOMAINS = ['cover', 'scene']
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['pyvlx==0.2.10']
 
 CONFIG_SCHEMA = vol.Schema({
     DOMAIN: vol.Schema({
diff --git a/homeassistant/components/velux/cover.py b/homeassistant/components/velux/cover.py
index 4bdd888989e..1893909b706 100644
--- a/homeassistant/components/velux/cover.py
+++ b/homeassistant/components/velux/cover.py
@@ -6,7 +6,7 @@ from homeassistant.core import callback
 
 from . import DATA_VELUX
 
-
+DEPENDENCIES = ['velux']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/velux/scene.py b/homeassistant/components/velux/scene.py
index 2866258f917..614d3f349a2 100644
--- a/homeassistant/components/velux/scene.py
+++ b/homeassistant/components/velux/scene.py
@@ -3,7 +3,7 @@ from homeassistant.components.scene import Scene
 
 from . import _LOGGER, DATA_VELUX
 
-
+DEPENDENCIES = ['velux']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/venstar/climate.py b/homeassistant/components/venstar/climate.py
index 5dea452c173..f3e7542af5c 100644
--- a/homeassistant/components/venstar/climate.py
+++ b/homeassistant/components/venstar/climate.py
@@ -17,7 +17,7 @@ from homeassistant.const import (
     TEMP_FAHRENHEIT)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['venstarcolortouch==0.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/vera/__init__.py b/homeassistant/components/vera/__init__.py
index fffe33c2049..3f4c66d238a 100644
--- a/homeassistant/components/vera/__init__.py
+++ b/homeassistant/components/vera/__init__.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
     EVENT_HOMEASSISTANT_STOP, CONF_LIGHTS, CONF_EXCLUDE)
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['pyvera==0.2.45']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/vera/binary_sensor.py b/homeassistant/components/vera/binary_sensor.py
index 94b52023383..c81fa31938f 100644
--- a/homeassistant/components/vera/binary_sensor.py
+++ b/homeassistant/components/vera/binary_sensor.py
@@ -6,7 +6,7 @@ from homeassistant.components.binary_sensor import (
 
 from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
 
-
+DEPENDENCIES = ['vera']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/vera/climate.py b/homeassistant/components/vera/climate.py
index 545f1bc5dbe..f8ff9c21b89 100644
--- a/homeassistant/components/vera/climate.py
+++ b/homeassistant/components/vera/climate.py
@@ -11,7 +11,7 @@ from homeassistant.util import convert
 
 from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
 
-
+DEPENDENCIES = ['vera']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/vera/cover.py b/homeassistant/components/vera/cover.py
index fd6bf5cef8d..4cf2aac3bb4 100644
--- a/homeassistant/components/vera/cover.py
+++ b/homeassistant/components/vera/cover.py
@@ -6,7 +6,7 @@ from homeassistant.components.cover import (
 
 from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
 
-
+DEPENDENCIES = ['vera']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/vera/light.py b/homeassistant/components/vera/light.py
index 80af98b2614..e4e315bb52e 100644
--- a/homeassistant/components/vera/light.py
+++ b/homeassistant/components/vera/light.py
@@ -10,7 +10,7 @@ from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['vera']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/vera/lock.py b/homeassistant/components/vera/lock.py
index e74a097b179..5ace07b87d7 100644
--- a/homeassistant/components/vera/lock.py
+++ b/homeassistant/components/vera/lock.py
@@ -8,7 +8,7 @@ from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['vera']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/vera/scene.py b/homeassistant/components/vera/scene.py
index e1eb540caf6..5000f9bc50f 100644
--- a/homeassistant/components/vera/scene.py
+++ b/homeassistant/components/vera/scene.py
@@ -8,7 +8,7 @@ from . import VERA_CONTROLLER, VERA_ID_FORMAT, VERA_SCENES
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['vera']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/vera/sensor.py b/homeassistant/components/vera/sensor.py
index 961b1563772..3c026046b3e 100644
--- a/homeassistant/components/vera/sensor.py
+++ b/homeassistant/components/vera/sensor.py
@@ -11,7 +11,7 @@ from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['vera']
 
 SCAN_INTERVAL = timedelta(seconds=5)
 
diff --git a/homeassistant/components/vera/switch.py b/homeassistant/components/vera/switch.py
index 212919a4610..f422e49bf42 100644
--- a/homeassistant/components/vera/switch.py
+++ b/homeassistant/components/vera/switch.py
@@ -8,7 +8,7 @@ from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['vera']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/verisure/__init__.py b/homeassistant/components/verisure/__init__.py
index 3abc91a76ab..393a4066002 100644
--- a/homeassistant/components/verisure/__init__.py
+++ b/homeassistant/components/verisure/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.helpers import discovery
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['vsure==1.5.2', 'jsonpath==0.75']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/version/sensor.py b/homeassistant/components/version/sensor.py
index 1d4f417a008..7c8f2b1662a 100644
--- a/homeassistant/components/version/sensor.py
+++ b/homeassistant/components/version/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.const import CONF_NAME, CONF_SOURCE
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['pyhaversion==2.2.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/vesync/switch.py b/homeassistant/components/vesync/switch.py
index 14ce30dcf98..d37728624ef 100644
--- a/homeassistant/components/vesync/switch.py
+++ b/homeassistant/components/vesync/switch.py
@@ -6,7 +6,7 @@ from homeassistant.const import (CONF_USERNAME, CONF_PASSWORD)
 import homeassistant.helpers.config_validation as cv
 
 
-
+REQUIREMENTS = ['pyvesync_v2==0.9.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/vizio/media_player.py b/homeassistant/components/vizio/media_player.py
index faf32b6dd0f..bab54c68a90 100644
--- a/homeassistant/components/vizio/media_player.py
+++ b/homeassistant/components/vizio/media_player.py
@@ -15,7 +15,7 @@ from homeassistant.const import (
     CONF_ACCESS_TOKEN, CONF_HOST, CONF_NAME, STATE_OFF, STATE_ON)
 from homeassistant.helpers import config_validation as cv
 
-
+REQUIREMENTS = ['pyvizio==0.0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/vlc/media_player.py b/homeassistant/components/vlc/media_player.py
index 5729671b67d..41f9b5b16d4 100644
--- a/homeassistant/components/vlc/media_player.py
+++ b/homeassistant/components/vlc/media_player.py
@@ -13,7 +13,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['python-vlc==1.1.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/volkszaehler/sensor.py b/homeassistant/components/volkszaehler/sensor.py
index 39c704c9a71..5b808ff3c38 100644
--- a/homeassistant/components/volkszaehler/sensor.py
+++ b/homeassistant/components/volkszaehler/sensor.py
@@ -14,7 +14,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['volkszaehler==0.1.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/volvooncall/__init__.py b/homeassistant/components/volvooncall/__init__.py
index 36b0714ec02..36e3959338e 100644
--- a/homeassistant/components/volvooncall/__init__.py
+++ b/homeassistant/components/volvooncall/__init__.py
@@ -21,7 +21,7 @@ DOMAIN = 'volvooncall'
 
 DATA_KEY = DOMAIN
 
-
+REQUIREMENTS = ['volvooncall==0.8.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/vultr/__init__.py b/homeassistant/components/vultr/__init__.py
index 5cd6d1821ed..9f2efabd412 100644
--- a/homeassistant/components/vultr/__init__.py
+++ b/homeassistant/components/vultr/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.const import CONF_API_KEY
 from homeassistant.util import Throttle
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['vultr==0.1.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/vultr/binary_sensor.py b/homeassistant/components/vultr/binary_sensor.py
index ac93a81e661..87e8e93bda7 100644
--- a/homeassistant/components/vultr/binary_sensor.py
+++ b/homeassistant/components/vultr/binary_sensor.py
@@ -18,7 +18,7 @@ _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_DEVICE_CLASS = 'power'
 DEFAULT_NAME = 'Vultr {}'
-
+DEPENDENCIES = ['vultr']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_SUBSCRIPTION): cv.string,
diff --git a/homeassistant/components/vultr/sensor.py b/homeassistant/components/vultr/sensor.py
index 5d067ec0acd..f7e03dddace 100644
--- a/homeassistant/components/vultr/sensor.py
+++ b/homeassistant/components/vultr/sensor.py
@@ -15,7 +15,7 @@ from . import (
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Vultr {} {}'
-
+DEPENDENCIES = ['vultr']
 
 MONITORED_CONDITIONS = {
     ATTR_CURRENT_BANDWIDTH_USED: ['Current Bandwidth Used', 'GB',
diff --git a/homeassistant/components/vultr/switch.py b/homeassistant/components/vultr/switch.py
index 95a3877a556..502aaf9daa8 100644
--- a/homeassistant/components/vultr/switch.py
+++ b/homeassistant/components/vultr/switch.py
@@ -16,7 +16,7 @@ from . import (
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Vultr {}'
-
+DEPENDENCIES = ['vultr']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_SUBSCRIPTION): cv.string,
diff --git a/homeassistant/components/w800rf32/__init__.py b/homeassistant/components/w800rf32/__init__.py
index 475e576956a..d2c0cf6b968 100644
--- a/homeassistant/components/w800rf32/__init__.py
+++ b/homeassistant/components/w800rf32/__init__.py
@@ -10,7 +10,7 @@ from homeassistant.const import (CONF_DEVICE,
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import (dispatcher_send)
 
-
+REQUIREMENTS = ['pyW800rf32==0.1']
 
 DATA_W800RF32 = 'data_w800rf32'
 DOMAIN = 'w800rf32'
diff --git a/homeassistant/components/w800rf32/binary_sensor.py b/homeassistant/components/w800rf32/binary_sensor.py
index 0f3afa91f09..c9424834953 100644
--- a/homeassistant/components/w800rf32/binary_sensor.py
+++ b/homeassistant/components/w800rf32/binary_sensor.py
@@ -15,7 +15,7 @@ from . import W800RF32_DEVICE
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['w800rf32']
 CONF_OFF_DELAY = 'off_delay'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/wake_on_lan/__init__.py b/homeassistant/components/wake_on_lan/__init__.py
index 03061c034ab..e6e12ef0afe 100644
--- a/homeassistant/components/wake_on_lan/__init__.py
+++ b/homeassistant/components/wake_on_lan/__init__.py
@@ -7,7 +7,7 @@ import voluptuous as vol
 from homeassistant.const import CONF_MAC
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['wakeonlan==1.1.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/wake_on_lan/switch.py b/homeassistant/components/wake_on_lan/switch.py
index 3c1378c50dd..c81a476f0f8 100644
--- a/homeassistant/components/wake_on_lan/switch.py
+++ b/homeassistant/components/wake_on_lan/switch.py
@@ -10,7 +10,7 @@ from homeassistant.const import CONF_HOST, CONF_NAME
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.script import Script
 
-
+REQUIREMENTS = ['wakeonlan==1.1.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/waqi/sensor.py b/homeassistant/components/waqi/sensor.py
index 3b212319429..f3000890de6 100644
--- a/homeassistant/components/waqi/sensor.py
+++ b/homeassistant/components/waqi/sensor.py
@@ -14,7 +14,7 @@ from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.helpers.config_validation import PLATFORM_SCHEMA
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['waqiasync==1.0.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/waterfurnace/__init__.py b/homeassistant/components/waterfurnace/__init__.py
index d4a5a5b7b4e..38fd44cd1c7 100644
--- a/homeassistant/components/waterfurnace/__init__.py
+++ b/homeassistant/components/waterfurnace/__init__.py
@@ -13,7 +13,7 @@ from homeassistant.core import callback
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers import discovery
 
-
+REQUIREMENTS = ['waterfurnace==1.1.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/watson_iot/__init__.py b/homeassistant/components/watson_iot/__init__.py
index 004efd69cf9..e9a907ee6d2 100644
--- a/homeassistant/components/watson_iot/__init__.py
+++ b/homeassistant/components/watson_iot/__init__.py
@@ -13,7 +13,7 @@ from homeassistant.const import (
 from homeassistant.helpers import state as state_helper
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['ibmiotf==0.3.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/waze_travel_time/sensor.py b/homeassistant/components/waze_travel_time/sensor.py
index 4960226a95a..984a5800898 100644
--- a/homeassistant/components/waze_travel_time/sensor.py
+++ b/homeassistant/components/waze_travel_time/sensor.py
@@ -13,7 +13,7 @@ from homeassistant.helpers import location
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['WazeRouteCalculator==0.9']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/webhook/__init__.py b/homeassistant/components/webhook/__init__.py
index 41abe324c37..59be3ab1890 100644
--- a/homeassistant/components/webhook/__init__.py
+++ b/homeassistant/components/webhook/__init__.py
@@ -12,7 +12,7 @@ from homeassistant.components.http.view import HomeAssistantView
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['http']
 
 DOMAIN = 'webhook'
 
diff --git a/homeassistant/components/webostv/media_player.py b/homeassistant/components/webostv/media_player.py
index 20feb522c91..35c3c456680 100644
--- a/homeassistant/components/webostv/media_player.py
+++ b/homeassistant/components/webostv/media_player.py
@@ -21,7 +21,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.script import Script
 
-
+REQUIREMENTS = ['pylgtv==0.1.9', 'websockets==6.0']
 
 _CONFIGURING = {}  # type: Dict[str, str]
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/webostv/notify.py b/homeassistant/components/webostv/notify.py
index 88306795e51..5887586df65 100644
--- a/homeassistant/components/webostv/notify.py
+++ b/homeassistant/components/webostv/notify.py
@@ -8,7 +8,7 @@ from homeassistant.components.notify import (
     ATTR_DATA, BaseNotificationService, PLATFORM_SCHEMA)
 from homeassistant.const import (CONF_FILENAME, CONF_HOST, CONF_ICON)
 
-
+REQUIREMENTS = ['pylgtv==0.1.9']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/wemo/__init__.py b/homeassistant/components/wemo/__init__.py
index 4c1f12be90e..709b3ec8672 100644
--- a/homeassistant/components/wemo/__init__.py
+++ b/homeassistant/components/wemo/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.helpers import discovery
 from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 
-
+REQUIREMENTS = ['pywemo==0.4.34']
 
 DOMAIN = 'wemo'
 
diff --git a/homeassistant/components/wemo/binary_sensor.py b/homeassistant/components/wemo/binary_sensor.py
index abf9eee568d..d6c1ad721b9 100644
--- a/homeassistant/components/wemo/binary_sensor.py
+++ b/homeassistant/components/wemo/binary_sensor.py
@@ -8,7 +8,7 @@ import requests
 from homeassistant.components.binary_sensor import BinarySensorDevice
 from homeassistant.exceptions import PlatformNotReady
 
-
+DEPENDENCIES = ['wemo']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/wemo/fan.py b/homeassistant/components/wemo/fan.py
index eca7d707634..29a493bf5bc 100644
--- a/homeassistant/components/wemo/fan.py
+++ b/homeassistant/components/wemo/fan.py
@@ -14,7 +14,7 @@ from homeassistant.components.fan import (
 from homeassistant.exceptions import PlatformNotReady
 from homeassistant.const import ATTR_ENTITY_ID
 
-
+DEPENDENCIES = ['wemo']
 SCAN_INTERVAL = timedelta(seconds=10)
 DATA_KEY = 'fan.wemo'
 
diff --git a/homeassistant/components/wemo/light.py b/homeassistant/components/wemo/light.py
index 96492b72fe6..e0f729fb165 100644
--- a/homeassistant/components/wemo/light.py
+++ b/homeassistant/components/wemo/light.py
@@ -13,7 +13,7 @@ from homeassistant.components.light import (
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.util.color as color_util
 
-
+DEPENDENCIES = ['wemo']
 
 MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
 MIN_TIME_BETWEEN_FORCED_SCANS = timedelta(milliseconds=100)
diff --git a/homeassistant/components/wemo/switch.py b/homeassistant/components/wemo/switch.py
index 82a3d14964b..0a583e49e96 100644
--- a/homeassistant/components/wemo/switch.py
+++ b/homeassistant/components/wemo/switch.py
@@ -12,7 +12,7 @@ from homeassistant.util import convert
 from homeassistant.const import (
     STATE_OFF, STATE_ON, STATE_STANDBY, STATE_UNKNOWN)
 
-
+DEPENDENCIES = ['wemo']
 SCAN_INTERVAL = timedelta(seconds=10)
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/whois/sensor.py b/homeassistant/components/whois/sensor.py
index cdeac403a6b..e36bdea08c3 100644
--- a/homeassistant/components/whois/sensor.py
+++ b/homeassistant/components/whois/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.const import CONF_NAME
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['python-whois==0.7.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/wink/__init__.py b/homeassistant/components/wink/__init__.py
index 5fba703c677..2b03d7711ac 100644
--- a/homeassistant/components/wink/__init__.py
+++ b/homeassistant/components/wink/__init__.py
@@ -20,7 +20,7 @@ from homeassistant.helpers.entity_component import EntityComponent
 from homeassistant.helpers.event import track_time_interval
 from homeassistant.util.json import load_json, save_json
 
-
+REQUIREMENTS = ['python-wink==1.10.3', 'pubnubsub-handler==1.0.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/wink/alarm_control_panel.py b/homeassistant/components/wink/alarm_control_panel.py
index 741a3d5d9a3..73ca9a3cac4 100644
--- a/homeassistant/components/wink/alarm_control_panel.py
+++ b/homeassistant/components/wink/alarm_control_panel.py
@@ -9,7 +9,7 @@ from . import DOMAIN, WinkDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['wink']
 
 STATE_ALARM_PRIVACY = 'Private'
 
diff --git a/homeassistant/components/wink/binary_sensor.py b/homeassistant/components/wink/binary_sensor.py
index 9fb0cc1ae85..f3757d7bf39 100644
--- a/homeassistant/components/wink/binary_sensor.py
+++ b/homeassistant/components/wink/binary_sensor.py
@@ -7,7 +7,7 @@ from . import DOMAIN, WinkDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['wink']
 
 # These are the available sensors mapped to binary_sensor class
 SENSOR_TYPES = {
diff --git a/homeassistant/components/wink/climate.py b/homeassistant/components/wink/climate.py
index b755f20585e..f5e75c1fb8d 100644
--- a/homeassistant/components/wink/climate.py
+++ b/homeassistant/components/wink/climate.py
@@ -26,7 +26,7 @@ ATTR_TOTAL_CONSUMPTION = 'total_consumption'
 ATTR_HEAT_ON = 'heat_on'
 ATTR_COOL_ON = 'cool_on'
 
-
+DEPENDENCIES = ['wink']
 
 SPEED_LOW = 'low'
 SPEED_MEDIUM = 'medium'
diff --git a/homeassistant/components/wink/cover.py b/homeassistant/components/wink/cover.py
index e34b4f7aec9..f4c4841c2a2 100644
--- a/homeassistant/components/wink/cover.py
+++ b/homeassistant/components/wink/cover.py
@@ -3,7 +3,7 @@ from homeassistant.components.cover import ATTR_POSITION, CoverDevice
 
 from . import DOMAIN, WinkDevice
 
-
+DEPENDENCIES = ['wink']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/wink/fan.py b/homeassistant/components/wink/fan.py
index 48a45defb84..52a27eb3c3d 100644
--- a/homeassistant/components/wink/fan.py
+++ b/homeassistant/components/wink/fan.py
@@ -9,7 +9,7 @@ from . import DOMAIN, WinkDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['wink']
 
 SPEED_AUTO = 'auto'
 SPEED_LOWEST = 'lowest'
diff --git a/homeassistant/components/wink/light.py b/homeassistant/components/wink/light.py
index b4803548165..95747bcc1b2 100644
--- a/homeassistant/components/wink/light.py
+++ b/homeassistant/components/wink/light.py
@@ -8,7 +8,7 @@ from homeassistant.util.color import (
 
 from . import DOMAIN, WinkDevice
 
-
+DEPENDENCIES = ['wink']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/wink/lock.py b/homeassistant/components/wink/lock.py
index 9f3c996ca04..8e6fb9b2805 100644
--- a/homeassistant/components/wink/lock.py
+++ b/homeassistant/components/wink/lock.py
@@ -10,7 +10,7 @@ import homeassistant.helpers.config_validation as cv
 
 from . import DOMAIN, WinkDevice
 
-
+DEPENDENCIES = ['wink']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/wink/scene.py b/homeassistant/components/wink/scene.py
index 01c95c2bba2..e77402c4d45 100644
--- a/homeassistant/components/wink/scene.py
+++ b/homeassistant/components/wink/scene.py
@@ -7,7 +7,7 @@ from . import DOMAIN, WinkDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['wink']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/wink/sensor.py b/homeassistant/components/wink/sensor.py
index 52f6793e47e..3dfd704d564 100644
--- a/homeassistant/components/wink/sensor.py
+++ b/homeassistant/components/wink/sensor.py
@@ -7,7 +7,7 @@ from . import DOMAIN, WinkDevice
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['wink']
 
 SENSOR_TYPES = ['temperature', 'humidity', 'balance', 'proximity']
 
diff --git a/homeassistant/components/wink/switch.py b/homeassistant/components/wink/switch.py
index 2cd3a5eb211..6ee777dd1fc 100644
--- a/homeassistant/components/wink/switch.py
+++ b/homeassistant/components/wink/switch.py
@@ -5,7 +5,7 @@ from homeassistant.helpers.entity import ToggleEntity
 
 from . import DOMAIN, WinkDevice
 
-
+DEPENDENCIES = ['wink']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/wirelesstag/__init__.py b/homeassistant/components/wirelesstag/__init__.py
index 09ca9feb67e..28c8cb4d515 100644
--- a/homeassistant/components/wirelesstag/__init__.py
+++ b/homeassistant/components/wirelesstag/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.dispatcher import (
     dispatcher_send)
 
-
+REQUIREMENTS = ['wirelesstagpy==0.4.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/wirelesstag/binary_sensor.py b/homeassistant/components/wirelesstag/binary_sensor.py
index 935951fd0e1..aefa5ed34a9 100644
--- a/homeassistant/components/wirelesstag/binary_sensor.py
+++ b/homeassistant/components/wirelesstag/binary_sensor.py
@@ -14,7 +14,7 @@ from . import (
     DOMAIN as WIRELESSTAG_DOMAIN, SIGNAL_BINARY_EVENT_UPDATE,
     WirelessTagBaseSensor)
 
-
+DEPENDENCIES = ['wirelesstag']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/wirelesstag/sensor.py b/homeassistant/components/wirelesstag/sensor.py
index 4ba44912699..ca26e07b985 100644
--- a/homeassistant/components/wirelesstag/sensor.py
+++ b/homeassistant/components/wirelesstag/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from . import (
     DOMAIN as WIRELESSTAG_DOMAIN, SIGNAL_TAG_UPDATE, WirelessTagBaseSensor)
 
-
+DEPENDENCIES = ['wirelesstag']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/wirelesstag/switch.py b/homeassistant/components/wirelesstag/switch.py
index da49f6b1f4a..4a2b64acda1 100644
--- a/homeassistant/components/wirelesstag/switch.py
+++ b/homeassistant/components/wirelesstag/switch.py
@@ -9,7 +9,7 @@ import homeassistant.helpers.config_validation as cv
 
 from . import DOMAIN as WIRELESSTAG_DOMAIN, WirelessTagBaseSensor
 
-
+DEPENDENCIES = ['wirelesstag']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/workday/binary_sensor.py b/homeassistant/components/workday/binary_sensor.py
index 2bdc066abcf..b505e075018 100644
--- a/homeassistant/components/workday/binary_sensor.py
+++ b/homeassistant/components/workday/binary_sensor.py
@@ -9,7 +9,7 @@ from homeassistant.const import CONF_NAME, WEEKDAYS
 from homeassistant.components.binary_sensor import BinarySensorDevice
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['holidays==0.9.10']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/wunderlist/__init__.py b/homeassistant/components/wunderlist/__init__.py
index 23273f0df82..d67cf089b5e 100644
--- a/homeassistant/components/wunderlist/__init__.py
+++ b/homeassistant/components/wunderlist/__init__.py
@@ -7,7 +7,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.const import (
     CONF_NAME, CONF_ACCESS_TOKEN)
 
-
+REQUIREMENTS = ['wunderpy2==0.1.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xbox_live/sensor.py b/homeassistant/components/xbox_live/sensor.py
index 43d638b0343..9f8a02686ac 100644
--- a/homeassistant/components/xbox_live/sensor.py
+++ b/homeassistant/components/xbox_live/sensor.py
@@ -8,7 +8,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (CONF_API_KEY, STATE_UNKNOWN)
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['xboxapi==0.1.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xeoma/camera.py b/homeassistant/components/xeoma/camera.py
index 65339a8201d..dd0ee432707 100644
--- a/homeassistant/components/xeoma/camera.py
+++ b/homeassistant/components/xeoma/camera.py
@@ -8,7 +8,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_NAME, CONF_PASSWORD, CONF_USERNAME)
 from homeassistant.helpers import config_validation as cv
 
-
+REQUIREMENTS = ['pyxeoma==1.4.1']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xfinity/device_tracker.py b/homeassistant/components/xfinity/device_tracker.py
index 9d3c5556fed..04702355de7 100644
--- a/homeassistant/components/xfinity/device_tracker.py
+++ b/homeassistant/components/xfinity/device_tracker.py
@@ -9,7 +9,7 @@ from homeassistant.components.device_tracker import (
     DOMAIN, PLATFORM_SCHEMA, DeviceScanner)
 from homeassistant.const import CONF_HOST
 
-
+REQUIREMENTS = ['xfinity-gateway==0.0.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xiaomi/camera.py b/homeassistant/components/xiaomi/camera.py
index c4f200bfe4a..98e54d2bc73 100644
--- a/homeassistant/components/xiaomi/camera.py
+++ b/homeassistant/components/xiaomi/camera.py
@@ -11,7 +11,7 @@ from homeassistant.const import (CONF_HOST, CONF_NAME, CONF_PATH,
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.aiohttp_client import async_aiohttp_proxy_stream
 
-
+DEPENDENCIES = ['ffmpeg']
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_BRAND = 'Xiaomi Home Camera'
diff --git a/homeassistant/components/xiaomi_aqara/__init__.py b/homeassistant/components/xiaomi_aqara/__init__.py
index ea281f28ee0..9b113170f8a 100644
--- a/homeassistant/components/xiaomi_aqara/__init__.py
+++ b/homeassistant/components/xiaomi_aqara/__init__.py
@@ -16,7 +16,7 @@ from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.event import async_track_point_in_utc_time
 from homeassistant.util.dt import utcnow
 
-
+REQUIREMENTS = ['PyXiaomiGateway==0.12.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xiaomi_miio/device_tracker.py b/homeassistant/components/xiaomi_miio/device_tracker.py
index d7bdbe5562e..e7ea9fbbb40 100644
--- a/homeassistant/components/xiaomi_miio/device_tracker.py
+++ b/homeassistant/components/xiaomi_miio/device_tracker.py
@@ -8,7 +8,7 @@ from homeassistant.components.device_tracker import (
 from homeassistant.const import CONF_HOST, CONF_TOKEN
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['python-miio==0.4.5', 'construct==2.9.45']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xiaomi_miio/fan.py b/homeassistant/components/xiaomi_miio/fan.py
index 8adf901ac84..51d4780160d 100644
--- a/homeassistant/components/xiaomi_miio/fan.py
+++ b/homeassistant/components/xiaomi_miio/fan.py
@@ -13,7 +13,7 @@ from homeassistant.const import (CONF_NAME, CONF_HOST, CONF_TOKEN,
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['python-miio==0.4.5', 'construct==2.9.45']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xiaomi_miio/light.py b/homeassistant/components/xiaomi_miio/light.py
index 3ffc5e4072d..ec07a557342 100644
--- a/homeassistant/components/xiaomi_miio/light.py
+++ b/homeassistant/components/xiaomi_miio/light.py
@@ -17,7 +17,7 @@ from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import color, dt
 
-
+REQUIREMENTS = ['python-miio==0.4.5', 'construct==2.9.45']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xiaomi_miio/remote.py b/homeassistant/components/xiaomi_miio/remote.py
index f13f8d5124a..450279c1825 100644
--- a/homeassistant/components/xiaomi_miio/remote.py
+++ b/homeassistant/components/xiaomi_miio/remote.py
@@ -17,7 +17,7 @@ from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util.dt import utcnow
 
-
+REQUIREMENTS = ['python-miio==0.4.5', 'construct==2.9.45']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xiaomi_miio/sensor.py b/homeassistant/components/xiaomi_miio/sensor.py
index acc47acb98d..41d3ce65b13 100644
--- a/homeassistant/components/xiaomi_miio/sensor.py
+++ b/homeassistant/components/xiaomi_miio/sensor.py
@@ -9,7 +9,7 @@ from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['python-miio==0.4.5', 'construct==2.9.45']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xiaomi_miio/switch.py b/homeassistant/components/xiaomi_miio/switch.py
index 64cb8eef5e3..d1acce02e47 100644
--- a/homeassistant/components/xiaomi_miio/switch.py
+++ b/homeassistant/components/xiaomi_miio/switch.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
 from homeassistant.exceptions import PlatformNotReady
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['python-miio==0.4.5', 'construct==2.9.45']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xiaomi_miio/vacuum.py b/homeassistant/components/xiaomi_miio/vacuum.py
index bef335a8ee6..2673a5b897c 100644
--- a/homeassistant/components/xiaomi_miio/vacuum.py
+++ b/homeassistant/components/xiaomi_miio/vacuum.py
@@ -16,7 +16,7 @@ from homeassistant.const import (
     ATTR_ENTITY_ID, CONF_HOST, CONF_NAME, CONF_TOKEN, STATE_OFF, STATE_ON)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['python-miio==0.4.5', 'construct==2.9.45']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xiaomi_tv/media_player.py b/homeassistant/components/xiaomi_tv/media_player.py
index a66743c1a09..2c8a2e1ea83 100644
--- a/homeassistant/components/xiaomi_tv/media_player.py
+++ b/homeassistant/components/xiaomi_tv/media_player.py
@@ -10,7 +10,7 @@ from homeassistant.components.media_player.const import (
 from homeassistant.const import CONF_HOST, CONF_NAME, STATE_OFF, STATE_ON
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pymitv==1.4.3']
 
 DEFAULT_NAME = "Xiaomi TV"
 
diff --git a/homeassistant/components/xmpp/notify.py b/homeassistant/components/xmpp/notify.py
index 1abeb7bbda8..d8036f5ee1e 100644
--- a/homeassistant/components/xmpp/notify.py
+++ b/homeassistant/components/xmpp/notify.py
@@ -17,7 +17,7 @@ import homeassistant.helpers.template as template_helper
 from homeassistant.components.notify import (
     ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 
-
+REQUIREMENTS = ['slixmpp==1.4.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xs1/__init__.py b/homeassistant/components/xs1/__init__.py
index 80cfbf5c2cd..f67eb8fd15a 100644
--- a/homeassistant/components/xs1/__init__.py
+++ b/homeassistant/components/xs1/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
-
+REQUIREMENTS = ['xs1-api-client==2.3.5']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xs1/climate.py b/homeassistant/components/xs1/climate.py
index 6385934bbbd..080b87c1346 100644
--- a/homeassistant/components/xs1/climate.py
+++ b/homeassistant/components/xs1/climate.py
@@ -8,7 +8,7 @@ from homeassistant.const import ATTR_TEMPERATURE
 
 from . import ACTUATORS, DOMAIN as COMPONENT_DOMAIN, SENSORS, XS1DeviceEntity
 
-
+DEPENDENCIES = ['xs1']
 _LOGGER = logging.getLogger(__name__)
 
 MIN_TEMP = 8
diff --git a/homeassistant/components/xs1/sensor.py b/homeassistant/components/xs1/sensor.py
index cd5ae5b64c8..f5fdcf1fb34 100644
--- a/homeassistant/components/xs1/sensor.py
+++ b/homeassistant/components/xs1/sensor.py
@@ -5,7 +5,7 @@ from homeassistant.helpers.entity import Entity
 
 from . import ACTUATORS, DOMAIN as COMPONENT_DOMAIN, SENSORS, XS1DeviceEntity
 
-
+DEPENDENCIES = ['xs1']
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/xs1/switch.py b/homeassistant/components/xs1/switch.py
index 0fc9dccf223..d8b344fc716 100644
--- a/homeassistant/components/xs1/switch.py
+++ b/homeassistant/components/xs1/switch.py
@@ -7,7 +7,7 @@ from . import ACTUATORS, DOMAIN as COMPONENT_DOMAIN, XS1DeviceEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['xs1']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/yale_smart_alarm/alarm_control_panel.py b/homeassistant/components/yale_smart_alarm/alarm_control_panel.py
index 046eec0c789..1a8e03a6363 100755
--- a/homeassistant/components/yale_smart_alarm/alarm_control_panel.py
+++ b/homeassistant/components/yale_smart_alarm/alarm_control_panel.py
@@ -10,7 +10,7 @@ from homeassistant.const import (
     STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME, STATE_ALARM_DISARMED)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['yalesmartalarmclient==0.1.6']
 
 CONF_AREA_ID = 'area_id'
 
diff --git a/homeassistant/components/yamaha/media_player.py b/homeassistant/components/yamaha/media_player.py
index 87646e61f2e..53c6b466f6e 100644
--- a/homeassistant/components/yamaha/media_player.py
+++ b/homeassistant/components/yamaha/media_player.py
@@ -18,7 +18,7 @@ from homeassistant.const import (
     STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['rxv==0.6.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/yamaha_musiccast/media_player.py b/homeassistant/components/yamaha_musiccast/media_player.py
index 9755a3817cd..94002a4cc55 100644
--- a/homeassistant/components/yamaha_musiccast/media_player.py
+++ b/homeassistant/components/yamaha_musiccast/media_player.py
@@ -15,7 +15,7 @@ from homeassistant.const import (
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
 
-
+REQUIREMENTS = ['pymusiccast==0.1.6']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/yeelight/__init__.py b/homeassistant/components/yeelight/__init__.py
index 70b42356a23..9b9778fd5d2 100644
--- a/homeassistant/components/yeelight/__init__.py
+++ b/homeassistant/components/yeelight/__init__.py
@@ -16,7 +16,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import dispatcher_send
 from homeassistant.helpers.event import track_time_interval
 
-
+REQUIREMENTS = ['yeelight==0.4.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/yeelight/binary_sensor.py b/homeassistant/components/yeelight/binary_sensor.py
index 249271ecd0b..0b44966f15c 100644
--- a/homeassistant/components/yeelight/binary_sensor.py
+++ b/homeassistant/components/yeelight/binary_sensor.py
@@ -6,7 +6,7 @@ from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from . import DATA_YEELIGHT, DATA_UPDATED
 
-
+DEPENDENCIES = ['yeelight']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/yeelight/light.py b/homeassistant/components/yeelight/light.py
index 81747ea6452..8aa5c3d7300 100644
--- a/homeassistant/components/yeelight/light.py
+++ b/homeassistant/components/yeelight/light.py
@@ -22,7 +22,7 @@ from . import (
     YEELIGHT_FLOW_TRANSITION_SCHEMA, ACTION_RECOVER, CONF_FLOW_PARAMS,
     ATTR_ACTION, ATTR_COUNT)
 
-
+DEPENDENCIES = ['yeelight']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/yeelightsunflower/light.py b/homeassistant/components/yeelightsunflower/light.py
index 54a3b55c773..9252143526b 100644
--- a/homeassistant/components/yeelightsunflower/light.py
+++ b/homeassistant/components/yeelightsunflower/light.py
@@ -10,7 +10,7 @@ from homeassistant.components.light import (
 from homeassistant.const import CONF_HOST
 import homeassistant.util.color as color_util
 
-
+REQUIREMENTS = ['yeelightsunflower==0.0.10']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/yessssms/notify.py b/homeassistant/components/yessssms/notify.py
index 6958869d83a..c229c361e28 100644
--- a/homeassistant/components/yessssms/notify.py
+++ b/homeassistant/components/yessssms/notify.py
@@ -9,7 +9,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.components.notify import (PLATFORM_SCHEMA,
                                              BaseNotificationService)
 
-
+REQUIREMENTS = ['YesssSMS==0.2.3']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/yi/camera.py b/homeassistant/components/yi/camera.py
index 3ebb5ec8cd9..7ed36b97868 100644
--- a/homeassistant/components/yi/camera.py
+++ b/homeassistant/components/yi/camera.py
@@ -12,8 +12,8 @@ from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.aiohttp_client import async_aiohttp_proxy_stream
 from homeassistant.exceptions import PlatformNotReady
 
-
-
+REQUIREMENTS = ['aioftp==0.12.0']
+DEPENDENCIES = ['ffmpeg']
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_BRAND = 'YI Home Camera'
diff --git a/homeassistant/components/yr/sensor.py b/homeassistant/components/yr/sensor.py
index 29f1d949576..4c898a7c9fe 100644
--- a/homeassistant/components/yr/sensor.py
+++ b/homeassistant/components/yr/sensor.py
@@ -20,7 +20,7 @@ from homeassistant.helpers.event import (async_track_utc_time_change,
                                          async_call_later)
 from homeassistant.util import dt as dt_util
 
-
+REQUIREMENTS = ['xmltodict==0.11.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/yweather/sensor.py b/homeassistant/components/yweather/sensor.py
index 9a1bd37e09d..129532ceb57 100644
--- a/homeassistant/components/yweather/sensor.py
+++ b/homeassistant/components/yweather/sensor.py
@@ -12,7 +12,7 @@ from homeassistant.const import (
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['yahooweather==0.10']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/yweather/weather.py b/homeassistant/components/yweather/weather.py
index 18b5620c053..e4eb34a039a 100644
--- a/homeassistant/components/yweather/weather.py
+++ b/homeassistant/components/yweather/weather.py
@@ -10,7 +10,7 @@ from homeassistant.components.weather import (
 from homeassistant.const import CONF_NAME, STATE_UNKNOWN, TEMP_CELSIUS
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ["yahooweather==0.10"]
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/zabbix/__init__.py b/homeassistant/components/zabbix/__init__.py
index 3f204bfe4bd..f33c60b1c39 100644
--- a/homeassistant/components/zabbix/__init__.py
+++ b/homeassistant/components/zabbix/__init__.py
@@ -8,7 +8,7 @@ from homeassistant.const import (
     CONF_PATH, CONF_HOST, CONF_SSL, CONF_PASSWORD, CONF_USERNAME)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['pyzabbix==0.7.4']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/zabbix/sensor.py b/homeassistant/components/zabbix/sensor.py
index ab2e8f5746d..ae2e70ede2c 100644
--- a/homeassistant/components/zabbix/sensor.py
+++ b/homeassistant/components/zabbix/sensor.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.entity import Entity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['zabbix']
 
 _CONF_TRIGGERS = 'triggers'
 _CONF_HOSTIDS = 'hostids'
diff --git a/homeassistant/components/zengge/light.py b/homeassistant/components/zengge/light.py
index c2f835073c4..8bbd56a483e 100644
--- a/homeassistant/components/zengge/light.py
+++ b/homeassistant/components/zengge/light.py
@@ -10,7 +10,7 @@ from homeassistant.components.light import (
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 
-
+REQUIREMENTS = ['zengge==0.2']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/zeroconf/__init__.py b/homeassistant/components/zeroconf/__init__.py
index 1af9b4dd1ac..844246528a6 100644
--- a/homeassistant/components/zeroconf/__init__.py
+++ b/homeassistant/components/zeroconf/__init__.py
@@ -7,11 +7,11 @@ import voluptuous as vol
 from homeassistant import util
 from homeassistant.const import (EVENT_HOMEASSISTANT_STOP, __version__)
 
-
+REQUIREMENTS = ['zeroconf==0.21.3']
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['api']
 DOMAIN = 'zeroconf'
 
 
diff --git a/homeassistant/components/zestimate/sensor.py b/homeassistant/components/zestimate/sensor.py
index 6e480e4e815..f69e3b16ebe 100644
--- a/homeassistant/components/zestimate/sensor.py
+++ b/homeassistant/components/zestimate/sensor.py
@@ -12,7 +12,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
-
+REQUIREMENTS = ['xmltodict==0.11.0']
 
 _LOGGER = logging.getLogger(__name__)
 _RESOURCE = 'http://www.zillow.com/webservice/GetZestimate.htm'
diff --git a/homeassistant/components/zha/binary_sensor.py b/homeassistant/components/zha/binary_sensor.py
index 36260fff9a3..b4254eb83e7 100644
--- a/homeassistant/components/zha/binary_sensor.py
+++ b/homeassistant/components/zha/binary_sensor.py
@@ -14,7 +14,7 @@ from .entity import ZhaEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['zha']
 
 # Zigbee Cluster Library Zone Type to Home Assistant device class
 CLASS_MAPPING = {
diff --git a/homeassistant/components/zha/fan.py b/homeassistant/components/zha/fan.py
index 9fcda0f68f7..b80834af1d7 100644
--- a/homeassistant/components/zha/fan.py
+++ b/homeassistant/components/zha/fan.py
@@ -12,7 +12,7 @@ from .core.const import (
 )
 from .entity import ZhaEntity
 
-
+DEPENDENCIES = ['zha']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/zha/light.py b/homeassistant/components/zha/light.py
index 8cbf8ea84a5..12bc12c5f6e 100644
--- a/homeassistant/components/zha/light.py
+++ b/homeassistant/components/zha/light.py
@@ -17,7 +17,7 @@ from .entity import ZhaEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['zha']
 
 DEFAULT_DURATION = 5
 
diff --git a/homeassistant/components/zha/sensor.py b/homeassistant/components/zha/sensor.py
index 383ea220fa7..13932d7dd7a 100644
--- a/homeassistant/components/zha/sensor.py
+++ b/homeassistant/components/zha/sensor.py
@@ -16,7 +16,7 @@ from .entity import ZhaEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['zha']
 
 
 # Formatter functions
diff --git a/homeassistant/components/zha/switch.py b/homeassistant/components/zha/switch.py
index e0e3399a3f6..34c9ab2514d 100644
--- a/homeassistant/components/zha/switch.py
+++ b/homeassistant/components/zha/switch.py
@@ -13,7 +13,7 @@ from .entity import ZhaEntity
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['zha']
 
 
 async def async_setup_platform(hass, config, async_add_entities,
diff --git a/homeassistant/components/zhong_hong/climate.py b/homeassistant/components/zhong_hong/climate.py
index 17f513d3f42..7fd2b971009 100644
--- a/homeassistant/components/zhong_hong/climate.py
+++ b/homeassistant/components/zhong_hong/climate.py
@@ -14,7 +14,7 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import (async_dispatcher_connect,
                                               async_dispatcher_send)
 
-
+REQUIREMENTS = ['zhong_hong_hvac==1.0.9']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/zigbee/__init__.py b/homeassistant/components/zigbee/__init__.py
index 9196b2bd99a..0e2d3587829 100644
--- a/homeassistant/components/zigbee/__init__.py
+++ b/homeassistant/components/zigbee/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.dispatcher import (
     async_dispatcher_connect, dispatcher_send)
 
-
+REQUIREMENTS = ['xbee-helper==0.0.7']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/zigbee/binary_sensor.py b/homeassistant/components/zigbee/binary_sensor.py
index 458c1200679..ccf4e70df34 100644
--- a/homeassistant/components/zigbee/binary_sensor.py
+++ b/homeassistant/components/zigbee/binary_sensor.py
@@ -8,7 +8,7 @@ from . import PLATFORM_SCHEMA, ZigBeeDigitalIn, ZigBeeDigitalInConfig
 CONF_ON_STATE = 'on_state'
 
 DEFAULT_ON_STATE = 'high'
-
+DEPENDENCIES = ['zigbee']
 
 STATES = ['high', 'low']
 
diff --git a/homeassistant/components/zigbee/light.py b/homeassistant/components/zigbee/light.py
index 2b1052ee81c..b9be0d89323 100644
--- a/homeassistant/components/zigbee/light.py
+++ b/homeassistant/components/zigbee/light.py
@@ -8,7 +8,7 @@ from . import PLATFORM_SCHEMA, ZigBeeDigitalOut, ZigBeeDigitalOutConfig
 CONF_ON_STATE = 'on_state'
 
 DEFAULT_ON_STATE = 'high'
-
+DEPENDENCIES = ['zigbee']
 
 STATES = ['high', 'low']
 
diff --git a/homeassistant/components/zigbee/sensor.py b/homeassistant/components/zigbee/sensor.py
index dc9a72b740d..48301ac9728 100644
--- a/homeassistant/components/zigbee/sensor.py
+++ b/homeassistant/components/zigbee/sensor.py
@@ -16,7 +16,7 @@ CONF_TYPE = 'type'
 CONF_MAX_VOLTS = 'max_volts'
 
 DEFAULT_VOLTS = 1.2
-
+DEPENDENCIES = ['zigbee']
 
 TYPES = ['analog', 'temperature']
 
diff --git a/homeassistant/components/zigbee/switch.py b/homeassistant/components/zigbee/switch.py
index 2f89f2155c4..ddfd47a047e 100644
--- a/homeassistant/components/zigbee/switch.py
+++ b/homeassistant/components/zigbee/switch.py
@@ -5,12 +5,12 @@ from homeassistant.components.switch import SwitchDevice
 
 from . import PLATFORM_SCHEMA, ZigBeeDigitalOut, ZigBeeDigitalOutConfig
 
-
+DEPENDENCIES = ['zigbee']
 
 CONF_ON_STATE = 'on_state'
 
 DEFAULT_ON_STATE = 'high'
-
+DEPENDENCIES = ['zigbee']
 
 STATES = ['high', 'low']
 
diff --git a/homeassistant/components/ziggo_mediabox_xl/media_player.py b/homeassistant/components/ziggo_mediabox_xl/media_player.py
index 9872d0d8a44..574d08e97a4 100644
--- a/homeassistant/components/ziggo_mediabox_xl/media_player.py
+++ b/homeassistant/components/ziggo_mediabox_xl/media_player.py
@@ -14,7 +14,7 @@ from homeassistant.const import (
     CONF_HOST, CONF_NAME, STATE_OFF, STATE_PAUSED, STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 
-
+REQUIREMENTS = ['ziggo-mediabox-xl==1.1.0']
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/zoneminder/__init__.py b/homeassistant/components/zoneminder/__init__.py
index b6ac6602a20..a4d90d523aa 100644
--- a/homeassistant/components/zoneminder/__init__.py
+++ b/homeassistant/components/zoneminder/__init__.py
@@ -11,7 +11,7 @@ from homeassistant.helpers.discovery import async_load_platform
 
 _LOGGER = logging.getLogger(__name__)
 
-
+REQUIREMENTS = ['zm-py==0.3.3']
 
 CONF_PATH_ZMS = 'path_zms'
 
diff --git a/homeassistant/components/zoneminder/binary_sensor.py b/homeassistant/components/zoneminder/binary_sensor.py
index 1ec8acc9222..ce59d4573be 100644
--- a/homeassistant/components/zoneminder/binary_sensor.py
+++ b/homeassistant/components/zoneminder/binary_sensor.py
@@ -3,7 +3,7 @@ from homeassistant.components.binary_sensor import BinarySensorDevice
 
 from . import DOMAIN as ZONEMINDER_DOMAIN
 
-
+DEPENDENCIES = ['zoneminder']
 
 
 async def async_setup_platform(
diff --git a/homeassistant/components/zoneminder/camera.py b/homeassistant/components/zoneminder/camera.py
index a20bf4edac9..fe3333fa3ed 100644
--- a/homeassistant/components/zoneminder/camera.py
+++ b/homeassistant/components/zoneminder/camera.py
@@ -9,7 +9,7 @@ from . import DOMAIN as ZONEMINDER_DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['zoneminder']
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/zoneminder/sensor.py b/homeassistant/components/zoneminder/sensor.py
index abc02c55a29..e205d921422 100644
--- a/homeassistant/components/zoneminder/sensor.py
+++ b/homeassistant/components/zoneminder/sensor.py
@@ -12,7 +12,7 @@ from . import DOMAIN as ZONEMINDER_DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['zoneminder']
 
 CONF_INCLUDE_ARCHIVED = "include_archived"
 
diff --git a/homeassistant/components/zoneminder/switch.py b/homeassistant/components/zoneminder/switch.py
index 5e7a72f8ecc..78e72c5fd4a 100644
--- a/homeassistant/components/zoneminder/switch.py
+++ b/homeassistant/components/zoneminder/switch.py
@@ -11,7 +11,7 @@ from . import DOMAIN as ZONEMINDER_DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
-
+DEPENDENCIES = ['zoneminder']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_COMMAND_ON): cv.string,
diff --git a/homeassistant/components/zwave/__init__.py b/homeassistant/components/zwave/__init__.py
index a94f0f02be3..6028e5547c6 100644
--- a/homeassistant/components/zwave/__init__.py
+++ b/homeassistant/components/zwave/__init__.py
@@ -37,7 +37,7 @@ from .discovery_schemas import DISCOVERY_SCHEMAS
 from .util import (check_node_schema, check_value_schema, node_name,
                    check_has_unique_id, is_node_parsed)
 
-
+REQUIREMENTS = ['pydispatcher==2.0.5', 'homeassistant-pyozw==0.1.4']
 
 _LOGGER = logging.getLogger(__name__)