diff --git a/platformio/__init__.py b/platformio/__init__.py
index 35aa5939..49b5bf77 100644
--- a/platformio/__init__.py
+++ b/platformio/__init__.py
@@ -38,15 +38,6 @@ __registry_mirror_hosts__ = [
 ]
 __pioremote_endpoint__ = "ssl:host=remote.platformio.org:port=4413"
 
-__core_packages__ = {
-    "contrib-piohome": "~3.4.2",
-    "contrib-pioremote": "~1.0.0",
-    "tool-scons": "~4.40600.0",
-    "tool-cppcheck": "~1.21100.0",
-    "tool-clangtidy": "~1.150005.0",
-    "tool-pvs-studio": "~7.18.0",
-}
-
 __check_internet_hosts__ = [
     "185.199.110.153",  # Github.com
     "88.198.170.159",  # platformio.org
diff --git a/platformio/commands/upgrade.py b/platformio/commands/upgrade.py
index 129e3fa1..d8ba386e 100644
--- a/platformio/commands/upgrade.py
+++ b/platformio/commands/upgrade.py
@@ -19,9 +19,9 @@ import subprocess
 import click
 
 from platformio import VERSION, __version__, app, exception
+from platformio.dependencies import get_pip_dependencies
 from platformio.http import fetch_remote_content
 from platformio.package.manager.core import update_core_packages
-from platformio.pipdeps import get_pip_dependencies
 from platformio.proc import get_pythonexe_path
 
 PYPI_JSON_URL = "https://pypi.org/pypi/platformio/json"
diff --git a/platformio/compat.py b/platformio/compat.py
index 008dc7ae..6bd8029c 100644
--- a/platformio/compat.py
+++ b/platformio/compat.py
@@ -17,6 +17,7 @@
 import importlib.util
 import inspect
 import locale
+import os
 import shlex
 import sys
 
@@ -45,6 +46,7 @@ else:
 
 
 PY2 = sys.version_info[0] == 2  # DO NOT REMOVE IT. ESP8266/ESP32 depend on it
+PY36 = sys.version_info[0:2] == (3, 6)
 IS_CYGWIN = sys.platform.startswith("cygwin")
 IS_WINDOWS = WINDOWS = sys.platform.startswith("win")
 IS_MACOS = sys.platform.startswith("darwin")
@@ -132,3 +134,12 @@ def path_to_unicode(path):
     and custom device monitor filters
     """
     return path
+
+
+def is_proxy_set(socks=False):
+    for var in ("HTTP_PROXY", "HTTPS_PROXY", "ALL_PROXY"):
+        value = os.getenv(var, os.getenv(var.lower()))
+        if not value or (socks and not value.startswith("socks5://")):
+            continue
+        return True
+    return False
diff --git a/platformio/pipdeps.py b/platformio/dependencies.py
similarity index 84%
rename from platformio/pipdeps.py
rename to platformio/dependencies.py
index b76bc8ca..b8ae471f 100644
--- a/platformio/pipdeps.py
+++ b/platformio/dependencies.py
@@ -12,11 +12,20 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
 import platform
-import sys
 
-PY36 = sys.version_info[0:2] == (3, 6)
+from platformio.compat import PY36, is_proxy_set
+
+
+def get_core_dependencies():
+    return {
+        "contrib-piohome": "~3.4.2",
+        "contrib-pioremote": "~1.0.0",
+        "tool-scons": "~4.40600.0",
+        "tool-cppcheck": "~1.21100.0",
+        "tool-clangtidy": "~1.150005.0",
+        "tool-pvs-studio": "~7.18.0",
+    }
 
 
 def get_pip_dependencies():
@@ -60,12 +69,3 @@ def get_pip_dependencies():
         pass
 
     return core + home + extra
-
-
-def is_proxy_set(socks=False):
-    for var in ("HTTP_PROXY", "HTTPS_PROXY", "ALL_PROXY"):
-        value = os.getenv(var, os.getenv(var.lower()))
-        if not value or (socks and not value.startswith("socks5://")):
-            continue
-        return True
-    return False
diff --git a/platformio/http.py b/platformio/http.py
index 18bb50c6..d82e4703 100644
--- a/platformio/http.py
+++ b/platformio/http.py
@@ -21,8 +21,8 @@ from urllib3.util.retry import Retry
 
 from platformio import __check_internet_hosts__, app, util
 from platformio.cache import ContentCache, cleanup_content_cache
+from platformio.compat import is_proxy_set
 from platformio.exception import PlatformioException, UserSideException
-from platformio.pipdeps import is_proxy_set
 
 __default_requests_timeout__ = (10, None)  # (connect, read)
 
diff --git a/platformio/package/manager/core.py b/platformio/package/manager/core.py
index ca5c5e01..f4e0f50e 100644
--- a/platformio/package/manager/core.py
+++ b/platformio/package/manager/core.py
@@ -14,7 +14,8 @@
 
 import os
 
-from platformio import __core_packages__, exception
+from platformio import exception
+from platformio.dependencies import get_core_dependencies
 from platformio.package.exception import UnknownPackageError
 from platformio.package.manager.tool import ToolPackageManager
 from platformio.package.meta import PackageSpec
@@ -23,7 +24,7 @@ from platformio.package.meta import PackageSpec
 def get_installed_core_packages():
     result = []
     pm = ToolPackageManager()
-    for name, requirements in __core_packages__.items():
+    for name, requirements in get_core_dependencies().items():
         spec = PackageSpec(owner="platformio", name=name, requirements=requirements)
         pkg = pm.get_package(spec)
         if pkg:
@@ -32,11 +33,11 @@ def get_installed_core_packages():
 
 
 def get_core_package_dir(name, spec=None, auto_install=True):
-    if name not in __core_packages__:
+    if name not in get_core_dependencies():
         raise exception.PlatformioException("Please upgrade PlatformIO Core")
     pm = ToolPackageManager()
     spec = spec or PackageSpec(
-        owner="platformio", name=name, requirements=__core_packages__[name]
+        owner="platformio", name=name, requirements=get_core_dependencies()[name]
     )
     pkg = pm.get_package(spec)
     if pkg:
@@ -50,7 +51,7 @@ def get_core_package_dir(name, spec=None, auto_install=True):
 
 def update_core_packages():
     pm = ToolPackageManager()
-    for name, requirements in __core_packages__.items():
+    for name, requirements in get_core_dependencies().items():
         spec = PackageSpec(owner="platformio", name=name, requirements=requirements)
         try:
             pm.update(spec, spec)
@@ -65,7 +66,7 @@ def remove_unnecessary_core_packages(dry_run=False):
     pm = ToolPackageManager()
     best_pkg_versions = {}
 
-    for name, requirements in __core_packages__.items():
+    for name, requirements in get_core_dependencies().items():
         spec = PackageSpec(owner="platformio", name=name, requirements=requirements)
         pkg = pm.get_package(spec)
         if not pkg:
diff --git a/setup.py b/setup.py
index 7a7c5076..e4eae238 100644
--- a/setup.py
+++ b/setup.py
@@ -23,7 +23,7 @@ from platformio import (
     __url__,
     __version__,
 )
-from platformio.pipdeps import get_pip_dependencies
+from platformio.dependencies import get_pip_dependencies
 
 setup(
     name=__title__,
diff --git a/tests/commands/pkg/test_install.py b/tests/commands/pkg/test_install.py
index 22963ef9..2c623314 100644
--- a/tests/commands/pkg/test_install.py
+++ b/tests/commands/pkg/test_install.py
@@ -18,7 +18,8 @@ import os
 
 import pytest
 
-from platformio import __core_packages__, fs
+from platformio import fs
+from platformio.dependencies import get_core_dependencies
 from platformio.package.commands.install import package_install_cmd
 from platformio.package.manager.library import LibraryPackageManager
 from platformio.package.manager.platform import PlatformPackageManager
@@ -177,7 +178,7 @@ def test_baremetal_project(
             ),
         ]
         assert pkgs_to_specs(ToolPackageManager().get_installed()) == [
-            PackageSpec("tool-scons@%s" % __core_packages__["tool-scons"][1:]),
+            PackageSpec("tool-scons@%s" % get_core_dependencies()["tool-scons"][1:]),
             PackageSpec("toolchain-atmelavr@1.70300.191015"),
         ]
 
@@ -210,7 +211,7 @@ def test_project(
         ]
         assert pkgs_to_specs(ToolPackageManager().get_installed()) == [
             PackageSpec("framework-arduino-avr-attiny@1.5.2"),
-            PackageSpec("tool-scons@%s" % __core_packages__["tool-scons"][1:]),
+            PackageSpec("tool-scons@%s" % get_core_dependencies()["tool-scons"][1:]),
             PackageSpec("toolchain-atmelavr@1.70300.191015"),
         ]
         assert config.get("env:devkit", "lib_deps") == [
diff --git a/tests/commands/pkg/test_update.py b/tests/commands/pkg/test_update.py
index 1fd953ed..4ee4366a 100644
--- a/tests/commands/pkg/test_update.py
+++ b/tests/commands/pkg/test_update.py
@@ -16,7 +16,8 @@
 
 import os
 
-from platformio import __core_packages__, fs
+from platformio import fs
+from platformio.dependencies import get_core_dependencies
 from platformio.package.commands.install import package_install_cmd
 from platformio.package.commands.update import package_update_cmd
 from platformio.package.exception import UnknownPackageError
@@ -174,7 +175,7 @@ def test_project(
         ]
         assert pkgs_to_specs(ToolPackageManager().get_installed()) == [
             PackageSpec("framework-arduino-avr-attiny@1.3.2"),
-            PackageSpec("tool-scons@%s" % __core_packages__["tool-scons"][1:]),
+            PackageSpec("tool-scons@%s" % get_core_dependencies()["tool-scons"][1:]),
             PackageSpec("toolchain-atmelavr@1.50400.190710"),
         ]
         assert config.get("env:devkit", "lib_deps") == [
@@ -204,7 +205,7 @@ def test_project(
         ]
         assert pkgs_to_specs(ToolPackageManager().get_installed()) == [
             PackageSpec("framework-arduino-avr-attiny@1.3.2"),
-            PackageSpec("tool-scons@%s" % __core_packages__["tool-scons"][1:]),
+            PackageSpec("tool-scons@%s" % get_core_dependencies()["tool-scons"][1:]),
             PackageSpec("toolchain-atmelavr@1.70300.191015"),
             PackageSpec("toolchain-atmelavr@1.50400.190710"),
         ]