Fix PEPE257 issues

homeassistant/components/sensor/bitcoin.py

@@ -38,12 +38,12 @@ OPTION_TYPES = {
 }
 ICON = 'mdi:currency-btc'
 
-# Return cached results if last scan was less then this time ago
+# Return cached results if last scan was less then this time ago.
 MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=120)
 
 
 def setup_platform(hass, config, add_devices, discovery_info=None):
-    """Get the Bitcoin sensor."""
+    """Setup the Bitcoin sensor."""
     from blockchain.wallet import Wallet
     from blockchain import exchangerates, exceptions
 
@@ -81,8 +81,10 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
 
 # pylint: disable=too-few-public-methods
 class BitcoinSensor(Entity):
-    """Implements a Bitcoin sensor."""
+    """Representation of a Bitcoin sensor."""
+
     def __init__(self, data, option_type, currency, wallet=''):
+        """Initialize the sensor."""
         self.data = data
         self._name = OPTION_TYPES[option_type][0]
         self._unit_of_measurement = OPTION_TYPES[option_type][1]
@@ -94,27 +96,27 @@ class BitcoinSensor(Entity):
 
     @property
     def name(self):
-        """Returns the name of the sensor."""
+        """Return the name of the sensor."""
         return self._name
 
     @property
     def state(self):
-        """Returns the state of the sensor."""
+        """Return the state of the sensor."""
         return self._state
 
     @property
     def unit_of_measurement(self):
-        """Unit the value is expressed in."""
+        """Return the unit the value is expressed in."""
         return self._unit_of_measurement
 
     @property
     def icon(self):
-        """Icon to use in the frontend, if any."""
+        """Return the icon to use in the frontend, if any."""
         return ICON
 
     # pylint: disable=too-many-branches
     def update(self):
-        """Gets the latest data and updates the states."""
+        """Get the latest data and updates the states."""
         self.data.update()
         stats = self.data.stats
         ticker = self.data.ticker
@@ -172,14 +174,16 @@ class BitcoinSensor(Entity):
 
 
 class BitcoinData(object):
-    """Gets the latest data and updates the states."""
+    """Get the latest data and update the states."""
+
     def __init__(self):
+        """Initialize the data object."""
         self.stats = None
         self.ticker = None
 
     @Throttle(MIN_TIME_BETWEEN_UPDATES)
     def update(self):
-        """Gets the latest data from blockchain.info."""
+        """Get the latest data from blockchain.info."""
         from blockchain import statistics, exchangerates
 
         self.stats = statistics.get()