diff --git a/homeassistant/components/sensor/nest.py b/homeassistant/components/sensor/nest.py
index fa2a245411c..040469d2e13 100644
--- a/homeassistant/components/sensor/nest.py
+++ b/homeassistant/components/sensor/nest.py
@@ -38,7 +38,9 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
             for device in structure.devices:
                 for variable in config['monitored_conditions']:
                     if variable in SENSOR_TYPES:
-                        add_devices([NestBasicSensor(structure, device, variable)])
+                        add_devices([NestBasicSensor(structure,
+                                                     device,
+                                                     variable)])
                     elif variable in SENSOR_TEMP_TYPES:
                         add_devices([NestTempSensor(structure,
                                                     device,
@@ -78,6 +80,8 @@ class NestSensor(Entity):
 
 
 class NestBasicSensor(NestSensor):
+    """ Represents a basic Nest sensor with state. """
+
     @property
     def state(self):
         """ Returns the state of the sensor. """