Move constant to 'const.py' and use already defined ones (#10211)

homeassistant/components/notify/rocketchat.py

@@ -8,17 +8,14 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.const import (
-    CONF_URL, CONF_USERNAME, CONF_PASSWORD)
-from homeassistant.components.notify import (
-    ATTR_DATA, PLATFORM_SCHEMA,
-    BaseNotificationService)
 import homeassistant.helpers.config_validation as cv
+from homeassistant.const import (
+    CONF_URL, CONF_USERNAME, CONF_PASSWORD, CONF_ROOM)
+from homeassistant.components.notify import (
+    ATTR_DATA, PLATFORM_SCHEMA, BaseNotificationService)
 
 REQUIREMENTS = ['rocketchat-API==0.6.1']
 
-CONF_ROOM = 'room'
-
 _LOGGER = logging.getLogger(__name__)
 
 # pylint: disable=no-value-for-parameter
@@ -44,11 +41,11 @@ def get_service(hass, config, discovery_info=None):
         return RocketChatNotificationService(url, username, password, room)
     except RocketConnectionException:
         _LOGGER.warning(
-            "Unable to connect to Rocket.Chat server at %s.", url)
+            "Unable to connect to Rocket.Chat server at %s", url)
     except RocketAuthenticationException:
         _LOGGER.warning(
-            "Rocket.Chat authentication failed for user %s.", username)
-        _LOGGER.info("Please check your username/password.")
+            "Rocket.Chat authentication failed for user %s", username)
+        _LOGGER.info("Please check your username/password")
 
     return None
 
@@ -65,8 +62,8 @@ class RocketChatNotificationService(BaseNotificationService):
     def send_message(self, message="", **kwargs):
         """Send a message to Rocket.Chat."""
         data = kwargs.get(ATTR_DATA) or {}
-        resp = self._server.chat_post_message(message, channel=self._room,
-                                              **data)
+        resp = self._server.chat_post_message(
+            message, channel=self._room, **data)
         if resp.status_code == 200:
             success = resp.json()["success"]
             if not success: