Update/add docstrings (PEP257)

homeassistant/components/sensor/cpuspeed.py

@@ -1,7 +1,5 @@
 """
-homeassistant.components.sensor.cpuspeed
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Shows the current CPU speed.
+Support for displaying the current CPU speed.
 
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/sensor.cpuspeed/
@@ -15,7 +13,6 @@ REQUIREMENTS = ['py-cpuinfo==0.1.8']
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = "CPU speed"
-
 ATTR_VENDOR = 'Vendor ID'
 ATTR_BRAND = 'Brand'
 ATTR_HZ = 'GHz Advertised'
@@ -24,14 +21,12 @@ ICON = 'mdi:pulse'
 
 # pylint: disable=unused-variable
 def setup_platform(hass, config, add_devices, discovery_info=None):
-    """ Sets up the CPU speed sensor. """
-
+    """Sets up the CPU speed sensor."""
     add_devices([CpuSpeedSensor(config.get('name', DEFAULT_NAME))])
 
 
 class CpuSpeedSensor(Entity):
-    """ A CPU info sensor. """
-
+    """A CPU info sensor."""
     def __init__(self, name):
         self._name = name
         self._state = None
@@ -40,22 +35,22 @@ class CpuSpeedSensor(Entity):
 
     @property
     def name(self):
-        """ The name of the sensor. """
+        """The name of the sensor."""
         return self._name
 
     @property
     def state(self):
-        """ Returns the state of the device. """
+        """Returns the state of the sensor."""
         return self._state
 
     @property
     def unit_of_measurement(self):
-        """ Unit the value is expressed in. """
+        """Unit the value is expressed in."""
         return self._unit_of_measurement
 
     @property
     def device_state_attributes(self):
-        """ Returns the state attributes. """
+        """Returns the state attributes."""
         if self.info is not None:
             return {
                 ATTR_VENDOR: self.info['vendor_id'],
@@ -65,11 +60,11 @@ class CpuSpeedSensor(Entity):
 
     @property
     def icon(self):
-        """ Icon to use in the frontend, if any. """
+        """Icon to use in the frontend, if any."""
         return ICON
 
     def update(self):
-        """ Gets the latest data and updates the state. """
+        """Gets the latest data and updates the state."""
         from cpuinfo import cpuinfo
 
         self.info = cpuinfo.get_cpu_info()