Depend on "zeroconf" from "contrib-pysite"

platformio/exception.py

@@ -227,10 +227,3 @@ class CygwinEnvDetected(PlatformioException):
 
     MESSAGE = "PlatformIO does not work within Cygwin environment. "\
         "Use native Terminal instead."
-
-
-class ZeroconfIsNotInstalled(PlatformioException):
-
-    MESSAGE = "Python multicast DNS service discovery library has not been "\
-              "installed automatically. Please open terminal and run \n"\
-              "> pip install zeroconf"

platformio/managers/core.py

@@ -22,7 +22,7 @@ from platformio.managers.package import PackageManager
 
 CORE_PACKAGES = {
     "contrib-piohome": ">=0.5.3,<2",
-    "pysite-pioplus": ">=0.4.2,<2",
+    "contrib-pysite": ">=0.1.0,<2",
     "tool-pioplus": ">=0.12.1,<2",
     "tool-unity": "~1.20302.1",
     "tool-scons": "~3.20501.2"
@@ -105,7 +105,7 @@ def pioplus_call(args, **kwargs):
     pioplus_path = join(get_core_package_dir("tool-pioplus"), "pioplus")
     pythonexe_path = util.get_pythonexe_path()
     os.environ['PYTHONEXEPATH'] = pythonexe_path
-    os.environ['PYTHONPYSITEDIR'] = get_core_package_dir("pysite-pioplus")
+    os.environ['PYTHONPYSITEDIR'] = get_core_package_dir("contrib-pysite")
     os.environ['PATH'] = (os.pathsep).join(
         [dirname(pythonexe_path), os.environ['PATH']])
     util.copy_pythonpath_to_osenv()

platformio/util.py

@@ -495,7 +495,12 @@ def get_mdns_services():
     try:
         import zeroconf
     except ImportError:
-        raise exception.ZeroconfIsNotInstalled()
+        from site import addsitedir
+        from platformio.managers.core import get_core_package_dir
+        contrib_pysite_dir = get_core_package_dir("contrib-pysite")
+        addsitedir(contrib_pysite_dir)
+        sys.path.insert(0, contrib_pysite_dir)
+        import zeroconf
 
     class mDNSListener(object):
 

setup.py

@@ -12,9 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import subprocess
-import sys
-from os.path import normpath
 from setuptools import find_packages, setup
 
 from platformio import (__author__, __description__, __email__, __license__,
@@ -30,19 +27,6 @@ install_requires = [
     "requests>=2.4.0,<3",
     "semantic_version>=2.5.0,<3"
 ]
-zeroconf_requirement = "zeroconf<=0.19.1"
-
-try:
-    import zeroconf  # pylint: disable=unused-import
-except ImportError:
-    try:
-        subprocess.check_call([
-            normpath(sys.executable), "-m", "pip", "install",
-            zeroconf_requirement
-        ])
-        install_requires.append(zeroconf_requirement)
-    except:  # pylint: disable=bare-except
-        pass
 
 setup(
     name=__title__,