Async syntax 8/8 (#17022)

* Async syntax 8

* Pylint fixes

homeassistant/components/emulated_hue/hue_api.py

@@ -1,5 +1,4 @@
 """Provides a Hue API to control Home Assistant."""
-import asyncio
 import logging
 
 from aiohttp import web
@@ -36,11 +35,10 @@ class HueUsernameView(HomeAssistantView):
     extra_urls = ['/api/']
     requires_auth = False
 
-    @asyncio.coroutine
-    def post(self, request):
+    async def post(self, request):
         """Handle a POST request."""
         try:
-            data = yield from request.json()
+            data = await request.json()
         except ValueError:
             return self.json_message('Invalid JSON', HTTP_BAD_REQUEST)
 
@@ -146,8 +144,7 @@ class HueOneLightChangeView(HomeAssistantView):
         """Initialize the instance of the view."""
         self.config = config
 
-    @asyncio.coroutine
-    def put(self, request, username, entity_number):
+    async def put(self, request, username, entity_number):
         """Process a request to set the state of an individual light."""
         config = self.config
         hass = request.app['hass']
@@ -168,7 +165,7 @@ class HueOneLightChangeView(HomeAssistantView):
             return web.Response(text="Entity not exposed", status=404)
 
         try:
-            request_json = yield from request.json()
+            request_json = await request.json()
         except ValueError:
             _LOGGER.error('Received invalid json')
             return self.json_message('Invalid JSON', HTTP_BAD_REQUEST)