Async reduce coro (#5001)

* Asyncio coro reduce

* Replace comments

homeassistant/components/alarm_control_panel/__init__.py

@@ -152,40 +152,48 @@ class AlarmControlPanel(Entity):
         """Send disarm command."""
         raise NotImplementedError()
 
-    @asyncio.coroutine
     def async_alarm_disarm(self, code=None):
-        """Send disarm command."""
-        yield from self.hass.loop.run_in_executor(
+        """Send disarm command.
+
+        This method must be run in the event loop and returns a coroutine.
+        """
+        return self.hass.loop.run_in_executor(
             None, self.alarm_disarm, code)
 
     def alarm_arm_home(self, code=None):
         """Send arm home command."""
         raise NotImplementedError()
 
-    @asyncio.coroutine
     def async_alarm_arm_home(self, code=None):
-        """Send arm home command."""
-        yield from self.hass.loop.run_in_executor(
+        """Send arm home command.
+
+        This method must be run in the event loop and returns a coroutine.
+        """
+        return self.hass.loop.run_in_executor(
             None, self.alarm_arm_home, code)
 
     def alarm_arm_away(self, code=None):
         """Send arm away command."""
         raise NotImplementedError()
 
-    @asyncio.coroutine
     def async_alarm_arm_away(self, code=None):
-        """Send arm away command."""
-        yield from self.hass.loop.run_in_executor(
+        """Send arm away command.
+
+        This method must be run in the event loop and returns a coroutine.
+        """
+        return self.hass.loop.run_in_executor(
             None, self.alarm_arm_away, code)
 
     def alarm_trigger(self, code=None):
         """Send alarm trigger command."""
         raise NotImplementedError()
 
-    @asyncio.coroutine
     def async_alarm_trigger(self, code=None):
-        """Send alarm trigger command."""
-        yield from self.hass.loop.run_in_executor(
+        """Send alarm trigger command.
+
+        This method must be run in the event loop and returns a coroutine.
+        """
+        return self.hass.loop.run_in_executor(
             None, self.alarm_trigger, code)
 
     @property

homeassistant/components/camera/__init__.py

@@ -81,15 +81,12 @@ class Camera(Entity):
         """Return bytes of camera image."""
         raise NotImplementedError()
 
-    @asyncio.coroutine
     def async_camera_image(self):
         """Return bytes of camera image.
 
-        This method must be run in the event loop.
+        This method must be run in the event loop and returns a coroutine.
         """
-        image = yield from self.hass.loop.run_in_executor(
-            None, self.camera_image)
-        return image
+        return self.hass.loop.run_in_executor(None, self.camera_image)
 
     @asyncio.coroutine
     def handle_async_mjpeg_stream(self, request):

homeassistant/components/remote/__init__.py

@@ -149,6 +149,9 @@ class RemoteDevice(ToggleEntity):
         raise NotImplementedError()
 
     def async_send_command(self, **kwargs):
-        """Send a command to a device."""
-        yield from self.hass.loop.run_in_executor(
+        """Send a command to a device.
+
+        This method must be run in the event loop and returns a coroutine.
+        """
+        return self.hass.loop.run_in_executor(
             None, ft.partial(self.send_command, **kwargs))

homeassistant/components/scene/__init__.py

@@ -96,10 +96,9 @@ class Scene(Entity):
         """Activate scene. Try to get entities into requested state."""
         raise NotImplementedError()
 
-    @asyncio.coroutine
     def async_activate(self):
         """Activate scene. Try to get entities into requested state.
 
-        This method is a coroutine.
+        This method must be run in the event loop and returns a coroutine.
         """
-        yield from self.hass.loop.run_in_executor(None, self.activate)
+        return self.hass.loop.run_in_executor(None, self.activate)

homeassistant/components/tts/__init__.py

@@ -384,17 +384,15 @@ class Provider(object):
         """Load tts audio file from provider."""
         raise NotImplementedError()
 
-    @asyncio.coroutine
     def async_get_tts_audio(self, message):
         """Load tts audio file from provider.
 
         Return a tuple of file extension and data as bytes.
 
-        This method is a coroutine.
+        This method must be run in the event loop and returns a coroutine.
         """
-        extension, data = yield from self.hass.loop.run_in_executor(
+        return self.hass.loop.run_in_executor(
             None, self.get_tts_audio, message)
-        return (extension, data)
 
 
 class TextToSpeechView(HomeAssistantView):

homeassistant/helpers/entity.py

@@ -346,20 +346,24 @@ class ToggleEntity(Entity):
         """Turn the entity on."""
         raise NotImplementedError()
 
-    @asyncio.coroutine
     def async_turn_on(self, **kwargs):
-        """Turn the entity on."""
-        yield from self.hass.loop.run_in_executor(
+        """Turn the entity on.
+
+        This method must be run in the event loop and returns a coroutine.
+        """
+        return self.hass.loop.run_in_executor(
             None, ft.partial(self.turn_on, **kwargs))
 
     def turn_off(self, **kwargs) -> None:
         """Turn the entity off."""
         raise NotImplementedError()
 
-    @asyncio.coroutine
     def async_turn_off(self, **kwargs):
-        """Turn the entity off."""
-        yield from self.hass.loop.run_in_executor(
+        """Turn the entity off.
+
+        This method must be run in the event loop and returns a coroutine.
+        """
+        return self.hass.loop.run_in_executor(
             None, ft.partial(self.turn_off, **kwargs))
 
     def toggle(self) -> None:
@@ -369,10 +373,12 @@ class ToggleEntity(Entity):
         else:
             self.turn_on()
 
-    @asyncio.coroutine
     def async_toggle(self):
-        """Toggle the entity."""
+        """Toggle the entity.
+
+        This method must be run in the event loop and returns a coroutine.
+        """
         if self.is_on:
-            yield from self.async_turn_off()
+            return self.async_turn_off()
         else:
-            yield from self.async_turn_on()
+            return self.async_turn_on()