Catch request exceptions and log a warning

homeassistant/components/sensor/efergy.py

@@ -8,7 +8,7 @@ For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/sensor.efergy.html
 """
 import logging
-from requests import get
+from requests import get, RequestException
 
 from homeassistant.helpers.entity import Entity
 
@@ -80,6 +80,7 @@ class EfergySensor(Entity):
 
     def update(self):
         """ Gets the Efergy monitor data from the web service. """
+        try:
             if self.type == 'instant_readings':
                 url_string = _RESOURCE + 'getInstant?token=' + self.app_token
                 response = get(url_string)
@@ -96,3 +97,5 @@ class EfergySensor(Entity):
                 self._state = response.json()['sum']
             else:
                 self._state = 'Unknown'
+        except RequestException:
+            _LOGGER.warning('Could not update status for %s', self.name)