diff --git a/homeassistant/components/thermostat/__init__.py b/homeassistant/components/thermostat/__init__.py
index 5d22fe60a8e..fa1cd702c8f 100644
--- a/homeassistant/components/thermostat/__init__.py
+++ b/homeassistant/components/thermostat/__init__.py
@@ -1,6 +1,4 @@
 """
-homeassistant.components.thermostat
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Provides functionality to interact with thermostats.
 
 For more details about this component, please refer to the documentation at
@@ -50,7 +48,7 @@ DISCOVERY_PLATFORMS = {
 
 
 def set_away_mode(hass, away_mode, entity_id=None):
-    """ Turn all or specified thermostat away mode on. """
+    """Turn all or specified thermostat away mode on."""
     data = {
         ATTR_AWAY_MODE: away_mode
     }
@@ -62,7 +60,7 @@ def set_away_mode(hass, away_mode, entity_id=None):
 
 
 def set_temperature(hass, temperature, entity_id=None):
-    """ Set new target temperature. """
+    """Set new target temperature."""
     data = {ATTR_TEMPERATURE: temperature}
 
     if entity_id is not None:
@@ -72,7 +70,7 @@ def set_temperature(hass, temperature, entity_id=None):
 
 
 def set_fan_mode(hass, fan_mode, entity_id=None):
-    """ Turn all or specified thermostat fan mode on. """
+    """Turn all or specified thermostat fan mode on."""
     data = {
         ATTR_FAN: fan_mode
     }
@@ -85,7 +83,7 @@ def set_fan_mode(hass, fan_mode, entity_id=None):
 
 # pylint: disable=too-many-branches
 def setup(hass, config):
-    """ Setup thermostats. """
+    """Setup thermostats."""
     component = EntityComponent(_LOGGER, DOMAIN, hass,
                                 SCAN_INTERVAL, DISCOVERY_PLATFORMS)
     component.setup(config)
@@ -94,8 +92,7 @@ def setup(hass, config):
         os.path.join(os.path.dirname(__file__), 'services.yaml'))
 
     def away_mode_set_service(service):
-        """ Set away mode on target thermostats """
-
+        """Set away mode on target thermostats."""
         target_thermostats = component.extract_from_service(service)
 
         away_mode = service.data.get(ATTR_AWAY_MODE)
@@ -119,8 +116,7 @@ def setup(hass, config):
         descriptions.get(SERVICE_SET_AWAY_MODE))
 
     def temperature_set_service(service):
-        """ Set temperature on the target thermostats """
-
+        """Set temperature on the target thermostats."""
         target_thermostats = component.extract_from_service(service)
 
         temperature = util.convert(
@@ -141,8 +137,7 @@ def setup(hass, config):
         descriptions.get(SERVICE_SET_TEMPERATURE))
 
     def fan_mode_set_service(service):
-        """ Set fan mode on target thermostats """
-
+        """Set fan mode on target thermostats."""
         target_thermostats = component.extract_from_service(service)
 
         fan_mode = service.data.get(ATTR_FAN)
@@ -169,19 +164,17 @@ def setup(hass, config):
 
 
 class ThermostatDevice(Entity):
-    """ Represents a thermostat within Home Assistant. """
+    """Representation of a thermostat."""
 
     # pylint: disable=no-self-use
-
     @property
     def state(self):
-        """ Returns the current state. """
+        """Return the current state."""
         return self.target_temperature or STATE_UNKNOWN
 
     @property
     def state_attributes(self):
-        """ Returns optional state attributes. """
-
+        """Return the optional state attributes."""
         data = {
             ATTR_CURRENT_TEMPERATURE:
             self._convert(self.current_temperature, 1),
@@ -210,83 +203,76 @@ class ThermostatDevice(Entity):
 
     @property
     def unit_of_measurement(self):
-        """ Unit of measurement this thermostat expresses itself in. """
+        """Return the unit of measurement."""
         raise NotImplementedError
 
     @property
     def current_temperature(self):
-        """ Returns the current temperature. """
+        """Return the current temperature."""
         raise NotImplementedError
 
     @property
     def operation(self):
-        """ Returns current operation ie. heat, cool, idle """
+        """Return current operation ie. heat, cool, idle."""
         return None
 
     @property
     def target_temperature(self):
-        """ Returns the temperature we try to reach. """
+        """Return the temperature we try to reach."""
         raise NotImplementedError
 
     @property
     def target_temperature_low(self):
-        """ Returns the lower bound temperature we try to reach. """
+        """Return the lower bound temperature we try to reach."""
         return self.target_temperature
 
     @property
     def target_temperature_high(self):
-        """ Returns the upper bound temperature we try to reach. """
+        """Return the upper bound temperature we try to reach."""
         return self.target_temperature
 
     @property
     def is_away_mode_on(self):
-        """
-        Returns if away mode is on.
-        Return None if no away mode available.
-        """
+        """Return true if away mode is on."""
         return None
 
     @property
     def is_fan_on(self):
-        """
-        Returns if the fan is on
-        Return None if not available.
-        """
+        """Return true if the fan is on."""
         return None
 
     def set_temperate(self, temperature):
-        """ Set new target temperature. """
+        """Set new target temperature."""
         pass
 
     def turn_away_mode_on(self):
-        """ Turns away mode on. """
+        """Turn away mode on."""
         pass
 
     def turn_away_mode_off(self):
-        """ Turns away mode off. """
+        """Turn away mode off."""
         pass
 
     def turn_fan_on(self):
-        """ Turns fan on. """
+        """Turn fan on."""
         pass
 
     def turn_fan_off(self):
-        """ Turns fan off. """
+        """Turn fan off."""
         pass
 
     @property
     def min_temp(self):
-        """ Return minimum temperature. """
+        """Return the minimum temperature."""
         return round(convert(7, TEMP_CELCIUS, self.unit_of_measurement))
 
     @property
     def max_temp(self):
-        """ Return maxmum temperature. """
+        """Return the maximum temperature."""
         return round(convert(35, TEMP_CELCIUS, self.unit_of_measurement))
 
     def _convert(self, temp, round_dec=None):
-        """ Convert temperature from this thermost into user preferred
-            temperature. """
+        """Convert temperature into user preferred temperature."""
         if temp is None:
             return None
 
diff --git a/homeassistant/components/thermostat/demo.py b/homeassistant/components/thermostat/demo.py
index 4ea1628c9a1..bceb7048a34 100644
--- a/homeassistant/components/thermostat/demo.py
+++ b/homeassistant/components/thermostat/demo.py
@@ -18,9 +18,11 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
 
 # pylint: disable=too-many-arguments
 class DemoThermostat(ThermostatDevice):
-    """Represents a HeatControl thermostat."""
+    """Representation of a demo thermostat."""
+
     def __init__(self, name, target_temperature, unit_of_measurement,
                  away, current_temperature):
+        """Initialize the thermostat."""
         self._name = name
         self._target_temperature = target_temperature
         self._unit_of_measurement = unit_of_measurement
@@ -34,7 +36,7 @@ class DemoThermostat(ThermostatDevice):
 
     @property
     def name(self):
-        """Return the thermostat."""
+        """Return the name of the thermostat."""
         return self._name
 
     @property
diff --git a/homeassistant/components/thermostat/ecobee.py b/homeassistant/components/thermostat/ecobee.py
index f61516f5d0d..756c6c6913a 100644
--- a/homeassistant/components/thermostat/ecobee.py
+++ b/homeassistant/components/thermostat/ecobee.py
@@ -1,6 +1,4 @@
 """
-homeassistant.components.thermostat.ecobee
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Platform for Ecobee Thermostats.
 
 For more details about this platform, please refer to the documentation at
@@ -20,7 +18,7 @@ _CONFIGURING = {}
 
 
 def setup_platform(hass, config, add_devices, discovery_info=None):
-    """ Setup the Ecobee Thermostat Platform. """
+    """Setup the Ecobee Thermostat Platform."""
     if discovery_info is None:
         return
     data = ecobee.NETWORK
@@ -33,9 +31,10 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
 
 
 class Thermostat(ThermostatDevice):
-    """ Thermostat class for Ecobee. """
+    """A thermostat class for Ecobee."""
 
     def __init__(self, data, thermostat_index, hold_temp):
+        """Initialize the thermostat."""
         self.data = data
         self.thermostat_index = thermostat_index
         self.thermostat = self.data.ecobee.get_thermostat(
@@ -45,29 +44,29 @@ class Thermostat(ThermostatDevice):
         self.hold_temp = hold_temp
 
     def update(self):
-        """ Get the latest state from the thermostat. """
+        """Get the latest state from the thermostat."""
         self.data.update()
         self.thermostat = self.data.ecobee.get_thermostat(
             self.thermostat_index)
 
     @property
     def name(self):
-        """ Returns the name of the Ecobee Thermostat. """
+        """Return the name of the Ecobee Thermostat."""
         return self.thermostat['name']
 
     @property
     def unit_of_measurement(self):
-        """ Unit of measurement this thermostat expresses itself in. """
+        """Return the unit of measurement."""
         return TEMP_FAHRENHEIT
 
     @property
     def current_temperature(self):
-        """ Returns the current temperature. """
+        """Return the current temperature."""
         return self.thermostat['runtime']['actualTemperature'] / 10
 
     @property
     def target_temperature(self):
-        """ Returns the temperature we try to reach. """
+        """Return the temperature we try to reach."""
         if self.hvac_mode == 'heat' or self.hvac_mode == 'auxHeatOnly':
             return self.target_temperature_low
         elif self.hvac_mode == 'cool':
@@ -78,27 +77,27 @@ class Thermostat(ThermostatDevice):
 
     @property
     def target_temperature_low(self):
-        """ Returns the lower bound temperature we try to reach. """
+        """Return the lower bound temperature we try to reach."""
         return int(self.thermostat['runtime']['desiredHeat'] / 10)
 
     @property
     def target_temperature_high(self):
-        """ Returns the upper bound temperature we try to reach. """
+        """Return the upper bound temperature we try to reach."""
         return int(self.thermostat['runtime']['desiredCool'] / 10)
 
     @property
     def humidity(self):
-        """ Returns the current humidity. """
+        """Return the current humidity."""
         return self.thermostat['runtime']['actualHumidity']
 
     @property
     def desired_fan_mode(self):
-        """ Returns the desired fan mode of operation. """
+        """Return the desired fan mode of operation."""
         return self.thermostat['runtime']['desiredFanMode']
 
     @property
     def fan(self):
-        """ Returns the current fan state. """
+        """Return the current fan state."""
         if 'fan' in self.thermostat['equipmentStatus']:
             return STATE_ON
         else:
@@ -106,7 +105,7 @@ class Thermostat(ThermostatDevice):
 
     @property
     def operation(self):
-        """ Returns current operation ie. heat, cool, idle """
+        """Return current operation ie. heat, cool, idle."""
         status = self.thermostat['equipmentStatus']
         if status == '':
             return STATE_IDLE
@@ -121,19 +120,19 @@ class Thermostat(ThermostatDevice):
 
     @property
     def mode(self):
-        """ Returns current mode ie. home, away, sleep """
+        """Return current mode ie. home, away, sleep."""
         mode = self.thermostat['program']['currentClimateRef']
         self._away = 'away' in mode
         return mode
 
     @property
     def hvac_mode(self):
-        """ Return current hvac mode ie. auto, auxHeatOnly, cool, heat, off """
+        """Return current hvac mode ie. auto, auxHeatOnly, cool, heat, off."""
         return self.thermostat['settings']['hvacMode']
 
     @property
     def device_state_attributes(self):
-        """ Returns device specific state attributes. """
+        """Return device specific state attributes."""
         # Move these to Thermostat Device and make them global
         return {
             "humidity": self.humidity,
@@ -144,11 +143,11 @@ class Thermostat(ThermostatDevice):
 
     @property
     def is_away_mode_on(self):
-        """ Returns if away mode is on. """
+        """Return true if away mode is on."""
         return self._away
 
     def turn_away_mode_on(self):
-        """ Turns away on. """
+        """Turn away on."""
         self._away = True
         if self.hold_temp:
             self.data.ecobee.set_climate_hold(self.thermostat_index,
@@ -157,12 +156,12 @@ class Thermostat(ThermostatDevice):
             self.data.ecobee.set_climate_hold(self.thermostat_index, "away")
 
     def turn_away_mode_off(self):
-        """ Turns away off. """
+        """Turn away off."""
         self._away = False
         self.data.ecobee.resume_program(self.thermostat_index)
 
     def set_temperature(self, temperature):
-        """ Set new target temperature """
+        """Set new target temperature."""
         temperature = int(temperature)
         low_temp = temperature - 1
         high_temp = temperature + 1
@@ -174,7 +173,7 @@ class Thermostat(ThermostatDevice):
                                            high_temp)
 
     def set_hvac_mode(self, mode):
-        """ Set HVAC mode (auto, auxHeatOnly, cool, heat, off) """
+        """Set HVAC mode (auto, auxHeatOnly, cool, heat, off)."""
         self.data.ecobee.set_hvac_mode(self.thermostat_index, mode)
 
     # Home and Sleep mode aren't used in UI yet:
diff --git a/homeassistant/components/thermostat/heat_control.py b/homeassistant/components/thermostat/heat_control.py
index 6e0ddb3ac1a..22542c034ba 100644
--- a/homeassistant/components/thermostat/heat_control.py
+++ b/homeassistant/components/thermostat/heat_control.py
@@ -1,6 +1,4 @@
 """
-homeassistant.components.thermostat.heat_control
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Adds support for heat control units.
 
 For more details about this platform, please refer to the documentation at
@@ -33,7 +31,7 @@ _LOGGER = logging.getLogger(__name__)
 
 # pylint: disable=unused-argument
 def setup_platform(hass, config, add_devices, discovery_info=None):
-    """ Sets up the heat control thermostat. """
+    """Setup the heat control thermostat."""
     name = config.get(CONF_NAME, DEFAULT_NAME)
     heater_entity_id = config.get(CONF_HEATER)
     sensor_entity_id = config.get(CONF_SENSOR)
@@ -52,10 +50,12 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
 
 # pylint: disable=too-many-instance-attributes
 class HeatControl(ThermostatDevice):
-    """ Represents a HeatControl device. """
+    """Representation of a HeatControl device."""
+
     # pylint: disable=too-many-arguments
     def __init__(self, hass, name, heater_entity_id, sensor_entity_id,
                  min_temp, max_temp, target_temp):
+        """Initialize the thermostat."""
         self.hass = hass
         self._name = name
         self.heater_entity_id = heater_entity_id
@@ -75,42 +75,43 @@ class HeatControl(ThermostatDevice):
 
     @property
     def should_poll(self):
+        """No polling needed."""
         return False
 
     @property
     def name(self):
-        """ Returns the name. """
+        """Return the name of the thermostat."""
         return self._name
 
     @property
     def unit_of_measurement(self):
-        """ Returns the unit of measurement. """
+        """Return the unit of measurement."""
         return self._unit
 
     @property
     def current_temperature(self):
-        """ Returns the sensor temperature. """
+        """Return the sensor temperature."""
         return self._cur_temp
 
     @property
     def operation(self):
-        """ Returns current operation ie. heat, cool, idle """
+        """Return current operation ie. heat, cool, idle."""
         return STATE_HEAT if self._active and self._is_heating else STATE_IDLE
 
     @property
     def target_temperature(self):
-        """ Returns the temperature we try to reach. """
+        """Return the temperature we try to reach."""
         return self._target_temp
 
     def set_temperature(self, temperature):
-        """ Set new target temperature. """
+        """Set new target temperature."""
         self._target_temp = temperature
         self._control_heating()
         self.update_ha_state()
 
     @property
     def min_temp(self):
-        """ Return minimum temperature. """
+        """Return the minimum temperature."""
         # pylint: disable=no-member
         if self._min_temp:
             return self._min_temp
@@ -120,16 +121,16 @@ class HeatControl(ThermostatDevice):
 
     @property
     def max_temp(self):
-        """ Return maximum temperature. """
+        """Return the maximum temperature."""
         # pylint: disable=no-member
         if self._min_temp:
             return self._max_temp
         else:
-            # get default temp from super class
+            # Get default temp from super class
             return ThermostatDevice.max_temp.fget(self)
 
     def _sensor_changed(self, entity_id, old_state, new_state):
-        """ Called when temperature changes. """
+        """Called when temperature changes."""
         if new_state is None:
             return
 
@@ -138,7 +139,7 @@ class HeatControl(ThermostatDevice):
         self.update_ha_state()
 
     def _update_temp(self, state):
-        """ Update thermostat with latest state from sensor. """
+        """Update thermostat with latest state from sensor."""
         unit = state.attributes.get(ATTR_UNIT_OF_MEASUREMENT)
 
         if unit not in (TEMP_CELCIUS, TEMP_FAHRENHEIT):
@@ -161,7 +162,7 @@ class HeatControl(ThermostatDevice):
         self._unit = unit
 
     def _control_heating(self):
-        """ Check if we need to turn heating on or off. """
+        """Check if we need to turn heating on or off."""
         if not self._active and None not in (self._cur_temp,
                                              self._target_temp):
             self._active = True
@@ -183,5 +184,5 @@ class HeatControl(ThermostatDevice):
 
     @property
     def _is_heating(self):
-        """ If the heater is currently heating. """
+        """If the heater is currently heating."""
         return switch.is_on(self.hass, self.heater_entity_id)
diff --git a/homeassistant/components/thermostat/heatmiser.py b/homeassistant/components/thermostat/heatmiser.py
index 1ad9045a4ec..dfd9938c6e7 100644
--- a/homeassistant/components/thermostat/heatmiser.py
+++ b/homeassistant/components/thermostat/heatmiser.py
@@ -1,7 +1,5 @@
 """
-homeassistant.components.thermostat.heatmiser
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Adds support for the PRT Heatmiser themostats using the V3 protocol.
+Support for the PRT Heatmiser themostats using the V3 protocol.
 
 See https://github.com/andylockran/heatmiserV3 for more info on the
 heatmiserV3 module dependency.
@@ -24,8 +22,7 @@ _LOGGER = logging.getLogger(__name__)
 
 
 def setup_platform(hass, config, add_devices, discovery_info=None):
-    """ Sets up the heatmiser thermostat. """
-
+    """Setup the heatmiser thermostat."""
     from heatmiserV3 import heatmiser, connection
 
     ipaddress = str(config[CONF_IPADDRESS])
@@ -59,10 +56,11 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
 
 
 class HeatmiserV3Thermostat(ThermostatDevice):
-    """ Represents a HeatmiserV3 thermostat. """
+    """Representation of a HeatmiserV3 thermostat."""
 
     # pylint: disable=too-many-instance-attributes
     def __init__(self, heatmiser, device, name, serport):
+        """Initialize the thermostat."""
         self.heatmiser = heatmiser
         self.device = device
         self.serport = serport
@@ -75,17 +73,17 @@ class HeatmiserV3Thermostat(ThermostatDevice):
 
     @property
     def name(self):
-        """ Returns the name of the honeywell, if any. """
+        """Return the name of the thermostat, if any."""
         return self._name
 
     @property
     def unit_of_measurement(self):
-        """ Unit of measurement this thermostat uses."""
+        """Return the unit of measurement which this thermostat uses."""
         return TEMP_CELCIUS
 
     @property
     def current_temperature(self):
-        """ Returns the current temperature. """
+        """Return the current temperature."""
         if self.dcb is not None:
             low = self.dcb.get("floortemplow ")
             high = self.dcb.get("floortemphigh")
@@ -97,11 +95,11 @@ class HeatmiserV3Thermostat(ThermostatDevice):
 
     @property
     def target_temperature(self):
-        """ Returns the temperature we try to reach. """
+        """Return the temperature we try to reach."""
         return self._target_temperature
 
     def set_temperature(self, temperature):
-        """ Set new target temperature """
+        """Set new target temperature."""
         temperature = int(temperature)
         self.heatmiser.hmSendAddress(
             self._id,
@@ -112,7 +110,5 @@ class HeatmiserV3Thermostat(ThermostatDevice):
         self._target_temperature = int(temperature)
 
     def update(self):
-        self.dcb = self.heatmiser.hmReadAddress(
-            self._id,
-            'prt',
-            self.serport)
+        """Get the latest data."""
+        self.dcb = self.heatmiser.hmReadAddress(self._id, 'prt', self.serport)
diff --git a/homeassistant/components/thermostat/homematic.py b/homeassistant/components/thermostat/homematic.py
index ab81e368589..c81e53af9d9 100644
--- a/homeassistant/components/thermostat/homematic.py
+++ b/homeassistant/components/thermostat/homematic.py
@@ -1,8 +1,5 @@
 """
-homeassistant.components.thermostat.homematic
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Adds support for Homematic (HM-TC-IT-WM-W-EU, HM-CC-RT-DN) thermostats using
-Homegear or Homematic central (CCU1/CCU2).
+Support for Homematic (HM-TC-IT-WM-W-EU, HM-CC-RT-DN) thermostats.
 
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/thermostat.homematic/
@@ -29,8 +26,7 @@ _LOGGER = logging.getLogger(__name__)
 
 
 def setup_platform(hass, config, add_devices, discovery_info=None):
-    """ Sets up the Homematic thermostat. """
-
+    """Setup the Homematic thermostat."""
     devices = []
     try:
         homegear = ServerProxy(config[CONF_ADDRESS])
@@ -62,9 +58,10 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
 
 # pylint: disable=too-many-instance-attributes
 class HomematicThermostat(ThermostatDevice):
-    """ Represents a Homematic thermostat. """
+    """Representation of a Homematic thermostat."""
 
     def __init__(self, device, _id, name, channel):
+        """Initialize the thermostat."""
         self.device = device
         self._id = _id
         self._channel = channel
@@ -80,39 +77,39 @@ class HomematicThermostat(ThermostatDevice):
 
     @property
     def name(self):
-        """ Returns the name of the Homematic device. """
+        """Return the name of the Homematic device."""
         return self._name
 
     @property
     def unit_of_measurement(self):
-        """ Unit of measurement this thermostat expresses itself in. """
+        """Return the unit of measurement that is used."""
         return TEMP_CELCIUS
 
     @property
     def current_temperature(self):
-        """ Returns the current temperature. """
+        """Return the current temperature."""
         return self._current_temperature
 
     @property
     def target_temperature(self):
-        """ Returns the temperature we try to reach. """
+        """Return the temperature we try to reach."""
         return self._target_temperature
 
     def set_temperature(self, temperature):
-        """ Set new target temperature. """
+        """Set new target temperature."""
         self.device.setValue(self._full_device_name,
                              PROPERTY_SET_TEMPERATURE,
                              temperature)
 
     @property
     def device_state_attributes(self):
-        """ Returns device specific state attributes. """
+        """Return the device specific state attributes."""
         return {"valve": self._valve,
                 "battery": self._battery,
                 "mode": self._mode}
 
     def update(self):
-        """ Update the data from the thermostat. """
+        """Update the data from the thermostat."""
         try:
             self._current_temperature = self.device.getValue(
                 self._full_device_name,
diff --git a/homeassistant/components/thermostat/honeywell.py b/homeassistant/components/thermostat/honeywell.py
index 8ef9f39a727..1a04c307c1f 100644
--- a/homeassistant/components/thermostat/honeywell.py
+++ b/homeassistant/components/thermostat/honeywell.py
@@ -1,7 +1,5 @@
 """
-homeassistant.components.thermostat.honeywell
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Adds support for Honeywell Round Connected and Honeywell Evohome thermostats.
+Support for Honeywell Round Connected and Honeywell Evohome thermostats.
 
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/thermostat.honeywell/
@@ -23,6 +21,7 @@ DEFAULT_AWAY_TEMP = 16
 
 
 def _setup_round(username, password, config, add_devices):
+    """Setup rounding function."""
     from evohomeclient import EvohomeClient
 
     try:
@@ -52,6 +51,7 @@ def _setup_round(username, password, config, add_devices):
 # config will be used later
 # pylint: disable=unused-argument
 def _setup_us(username, password, config, add_devices):
+    """Setup user."""
     import somecomfort
 
     try:
@@ -76,7 +76,7 @@ def _setup_us(username, password, config, add_devices):
 
 # pylint: disable=unused-argument
 def setup_platform(hass, config, add_devices, discovery_info=None):
-    """ Sets up the honeywel thermostat. """
+    """Setup the honeywel thermostat."""
     username = config.get(CONF_USERNAME)
     password = config.get(CONF_PASSWORD)
     region = config.get('region', 'eu').lower()
@@ -96,10 +96,11 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
 
 
 class RoundThermostat(ThermostatDevice):
-    """ Represents a Honeywell Round Connected thermostat. """
+    """Representation of a Honeywell Round Connected thermostat."""
 
     # pylint: disable=too-many-instance-attributes
     def __init__(self, device, zone_id, master, away_temp):
+        """Initialize the thermostat."""
         self.device = device
         self._current_temperature = None
         self._target_temperature = None
@@ -113,50 +114,52 @@ class RoundThermostat(ThermostatDevice):
 
     @property
     def name(self):
-        """ Returns the name of the honeywell, if any. """
+        """Return the name of the honeywell, if any."""
         return self._name
 
     @property
     def unit_of_measurement(self):
-        """ Unit of measurement this thermostat expresses itself in. """
+        """Return the unit of measurement."""
         return TEMP_CELCIUS
 
     @property
     def current_temperature(self):
-        """ Returns the current temperature. """
+        """Return the current temperature."""
         return self._current_temperature
 
     @property
     def target_temperature(self):
-        """ Returns the temperature we try to reach. """
+        """Return the temperature we try to reach."""
         if self._is_dhw:
             return None
         return self._target_temperature
 
     def set_temperature(self, temperature):
-        """ Set new target temperature """
+        """Set new target temperature."""
         self.device.set_temperature(self._name, temperature)
 
     @property
     def is_away_mode_on(self):
-        """ Returns if away mode is on. """
+        """Return true if away mode is on."""
         return self._away
 
     def turn_away_mode_on(self):
-        """ Turns away on.
-         Evohome does have a proprietary away mode, but it doesn't really work
-         the way it should. For example: If you set a temperature manually
-         it doesn't get overwritten when away mode is switched on.
-         """
+        """Turn away on.
+
+        Evohome does have a proprietary away mode, but it doesn't really work
+        the way it should. For example: If you set a temperature manually
+        it doesn't get overwritten when away mode is switched on.
+        """
         self._away = True
         self.device.set_temperature(self._name, self._away_temp)
 
     def turn_away_mode_off(self):
-        """ Turns away off. """
+        """Turn away off."""
         self._away = False
         self.device.cancel_temp_override(self._name)
 
     def update(self):
+        """Get the latest date."""
         try:
             # Only refresh if this is the "master" device,
             # others will pick up the cache
@@ -180,39 +183,45 @@ class RoundThermostat(ThermostatDevice):
 
 
 class HoneywellUSThermostat(ThermostatDevice):
-    """ Represents a Honeywell US Thermostat. """
+    """Representation of a Honeywell US Thermostat."""
 
     def __init__(self, client, device):
+        """Initialize the thermostat."""
         self._client = client
         self._device = device
 
     @property
     def is_fan_on(self):
+        """Return true if fan is on."""
         return self._device.fan_running
 
     @property
     def name(self):
+        """Return the name of the honeywell, if any."""
         return self._device.name
 
     @property
     def unit_of_measurement(self):
+        """Return the unit of measurement."""
         return (TEMP_CELCIUS if self._device.temperature_unit == 'C'
                 else TEMP_FAHRENHEIT)
 
     @property
     def current_temperature(self):
+        """Return the current temperature."""
         self._device.refresh()
         return self._device.current_temperature
 
     @property
     def target_temperature(self):
+        """Return the temperature we try to reach."""
         if self._device.system_mode == 'cool':
             return self._device.setpoint_cool
         else:
             return self._device.setpoint_heat
 
     def set_temperature(self, temperature):
-        """ Set target temperature. """
+        """Set target temperature."""
         import somecomfort
         try:
             if self._device.system_mode == 'cool':
@@ -224,13 +233,15 @@ class HoneywellUSThermostat(ThermostatDevice):
 
     @property
     def device_state_attributes(self):
-        """ Return device specific state attributes. """
+        """Return the device specific state attributes."""
         return {'fan': (self.is_fan_on and 'running' or 'idle'),
                 'fanmode': self._device.fan_mode,
                 'system_mode': self._device.system_mode}
 
     def turn_away_mode_on(self):
+        """Turn away on."""
         pass
 
     def turn_away_mode_off(self):
+        """Turn away off."""
         pass
diff --git a/homeassistant/components/thermostat/nest.py b/homeassistant/components/thermostat/nest.py
index be8df3fcb61..247fccc2d79 100644
--- a/homeassistant/components/thermostat/nest.py
+++ b/homeassistant/components/thermostat/nest.py
@@ -1,7 +1,5 @@
 """
-homeassistant.components.thermostat.nest
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Adds support for Nest thermostats.
+Support for Nest thermostats.
 
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/thermostat.nest/
@@ -18,8 +16,7 @@ DEPENDENCIES = ['nest']
 
 
 def setup_platform(hass, config, add_devices, discovery_info=None):
-    "Setup nest thermostat"
-
+    """Setup the Nest thermostat."""
     logger = logging.getLogger(__name__)
 
     try:
@@ -35,15 +32,16 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
 
 
 class NestThermostat(ThermostatDevice):
-    """ Represents a Nest thermostat. """
+    """Representation of a Nest thermostat."""
 
     def __init__(self, structure, device):
+        """Initialize the thermostat."""
         self.structure = structure
         self.device = device
 
     @property
     def name(self):
-        """ Returns the name of the nest, if any. """
+        """Return the name of the nest, if any."""
         location = self.device.where
         name = self.device.name
         if location is None:
@@ -56,12 +54,12 @@ class NestThermostat(ThermostatDevice):
 
     @property
     def unit_of_measurement(self):
-        """ Unit of measurement this thermostat expresses itself in. """
+        """Return the unit of measurement."""
         return TEMP_CELCIUS
 
     @property
     def device_state_attributes(self):
-        """ Returns device specific state attributes. """
+        """Return the device specific state attributes."""
         # Move these to Thermostat Device and make them global
         return {
             "humidity": self.device.humidity,
@@ -71,12 +69,12 @@ class NestThermostat(ThermostatDevice):
 
     @property
     def current_temperature(self):
-        """ Returns the current temperature. """
+        """Return the current temperature."""
         return round(self.device.temperature, 1)
 
     @property
     def operation(self):
-        """ Returns current operation ie. heat, cool, idle """
+        """Return current operation ie. heat, cool, idle."""
         if self.device.hvac_ac_state is True:
             return STATE_COOL
         elif self.device.hvac_heater_state is True:
@@ -86,7 +84,7 @@ class NestThermostat(ThermostatDevice):
 
     @property
     def target_temperature(self):
-        """ Returns the temperature we try to reach. """
+        """Return the temperature we try to reach."""
         target = self.device.target
 
         if self.device.mode == 'range':
@@ -108,25 +106,25 @@ class NestThermostat(ThermostatDevice):
 
     @property
     def target_temperature_low(self):
-        """ Returns the lower bound temperature we try to reach. """
+        """Return the lower bound temperature we try to reach."""
         if self.device.mode == 'range':
             return round(self.device.target[0], 1)
         return round(self.target_temperature, 1)
 
     @property
     def target_temperature_high(self):
-        """ Returns the upper bound temperature we try to reach. """
+        """Return the upper bound temperature we try to reach."""
         if self.device.mode == 'range':
             return round(self.device.target[1], 1)
         return round(self.target_temperature, 1)
 
     @property
     def is_away_mode_on(self):
-        """ Returns if away mode is on. """
+        """Return if away mode is on."""
         return self.structure.away
 
     def set_temperature(self, temperature):
-        """ Set new target temperature """
+        """Set new target temperature."""
         if self.device.mode == 'range':
             if self.target_temperature == self.target_temperature_low:
                 temperature = (temperature, self.target_temperature_high)
@@ -135,29 +133,29 @@ class NestThermostat(ThermostatDevice):
         self.device.target = temperature
 
     def turn_away_mode_on(self):
-        """ Turns away on. """
+        """Turn away on."""
         self.structure.away = True
 
     def turn_away_mode_off(self):
-        """ Turns away off. """
+        """Turn away off."""
         self.structure.away = False
 
     @property
     def is_fan_on(self):
-        """ Returns whether the fan is on """
+        """Return whether the fan is on."""
         return self.device.fan
 
     def turn_fan_on(self):
-        """ Turns fan on """
+        """Turn fan on."""
         self.device.fan = True
 
     def turn_fan_off(self):
-        """ Turns fan off """
+        """Turn fan off."""
         self.device.fan = False
 
     @property
     def min_temp(self):
-        """ Identifies min_temp in Nest API or defaults if not available. """
+        """Identify min_temp in Nest API or defaults if not available."""
         temp = self.device.away_temperature.low
         if temp is None:
             return super().min_temp
@@ -166,7 +164,7 @@ class NestThermostat(ThermostatDevice):
 
     @property
     def max_temp(self):
-        """ Identifies mxn_temp in Nest API or defaults if not available. """
+        """Identify max_temp in Nest API or defaults if not available."""
         temp = self.device.away_temperature.high
         if temp is None:
             return super().max_temp
@@ -174,5 +172,5 @@ class NestThermostat(ThermostatDevice):
             return temp
 
     def update(self):
-        """ Python-nest has its own mechanism for staying up to date. """
+        """Python-nest has its own mechanism for staying up to date."""
         pass
diff --git a/homeassistant/components/thermostat/proliphix.py b/homeassistant/components/thermostat/proliphix.py
index 3b643ab4923..4b86f556352 100644
--- a/homeassistant/components/thermostat/proliphix.py
+++ b/homeassistant/components/thermostat/proliphix.py
@@ -1,7 +1,5 @@
 """
-homeassistant.components.thermostat.proliphix
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-The Proliphix NT10e Thermostat is an ethernet connected thermostat.
+Support for Proliphix NT10e Thermostats.
 
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/thermostat.proliphix/
@@ -15,7 +13,7 @@ REQUIREMENTS = ['proliphix==0.1.0']
 
 
 def setup_platform(hass, config, add_devices, discovery_info=None):
-    """ Sets up the Proliphix thermostats. """
+    """Setup the Proliphix thermostats."""
     username = config.get(CONF_USERNAME)
     password = config.get(CONF_PASSWORD)
     host = config.get(CONF_HOST)
@@ -30,9 +28,10 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
 
 
 class ProliphixThermostat(ThermostatDevice):
-    """ Represents a Proliphix thermostat. """
+    """Representation a Proliphix thermostat."""
 
     def __init__(self, pdp):
+        """Initialize the thermostat."""
         self._pdp = pdp
         # initial data
         self._pdp.update()
@@ -40,43 +39,43 @@ class ProliphixThermostat(ThermostatDevice):
 
     @property
     def should_poll(self):
-        """ Polling needed for thermostat.. """
+        """Polling needed for thermostat."""
         return True
 
     def update(self):
-        """ Update the data from the thermostat. """
+        """Update the data from the thermostat."""
         self._pdp.update()
 
     @property
     def name(self):
-        """ Returns the name of the thermostat. """
+        """Return the name of the thermostat."""
         return self._name
 
     @property
     def device_state_attributes(self):
-        """ Returns device specific state attributes. """
+        """Return the device specific state attributes."""
         return {
             "fan": self._pdp.fan_state
         }
 
     @property
     def unit_of_measurement(self):
-        """ Returns the unit of measurement. """
+        """Return the unit of measurement."""
         return TEMP_FAHRENHEIT
 
     @property
     def current_temperature(self):
-        """ Returns the current temperature. """
+        """Return the current temperature."""
         return self._pdp.cur_temp
 
     @property
     def target_temperature(self):
-        """ Returns the temperature we try to reach. """
+        """Return the temperature we try to reach."""
         return self._pdp.setback_heat
 
     @property
     def operation(self):
-        """ Returns the current state of the thermostat. """
+        """Return the current state of the thermostat."""
         state = self._pdp.hvac_state
         if state in (1, 2):
             return STATE_IDLE
@@ -86,5 +85,5 @@ class ProliphixThermostat(ThermostatDevice):
             return STATE_COOL
 
     def set_temperature(self, temperature):
-        """ Set new target temperature. """
+        """Set new target temperature."""
         self._pdp.setback_heat = temperature
diff --git a/homeassistant/components/thermostat/radiotherm.py b/homeassistant/components/thermostat/radiotherm.py
index 88b3f83425c..3ff5d275194 100644
--- a/homeassistant/components/thermostat/radiotherm.py
+++ b/homeassistant/components/thermostat/radiotherm.py
@@ -1,7 +1,5 @@
 """
-homeassistant.components.thermostat.radiotherm
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Adds support for Radio Thermostat wifi-enabled home thermostats.
+Support for Radio Thermostat wifi-enabled home thermostats.
 
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/thermostat.radiotherm/
@@ -20,7 +18,7 @@ _LOGGER = logging.getLogger(__name__)
 
 
 def setup_platform(hass, config, add_devices, discovery_info=None):
-    """ Sets up the Radio Thermostat. """
+    """Setup the Radio Thermostat."""
     import radiotherm
 
     hosts = []
@@ -48,9 +46,10 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
 
 
 class RadioThermostat(ThermostatDevice):
-    """ Represent a Radio Thermostat. """
+    """Representation of a Radio Thermostat."""
 
     def __init__(self, device, hold_temp):
+        """Initialize the thermostat."""
         self.device = device
         self.set_time()
         self._target_temperature = None
@@ -62,17 +61,17 @@ class RadioThermostat(ThermostatDevice):
 
     @property
     def name(self):
-        """ Returns the name of the Radio Thermostat. """
+        """Return the name of the Radio Thermostat."""
         return self._name
 
     @property
     def unit_of_measurement(self):
-        """ Unit of measurement this thermostat expresses itself in. """
+        """Return the unit of measurement."""
         return TEMP_FAHRENHEIT
 
     @property
     def device_state_attributes(self):
-        """ Returns device specific state attributes. """
+        """Return the device specific state attributes."""
         return {
             "fan": self.device.fmode['human'],
             "mode": self.device.tmode['human']
@@ -80,22 +79,21 @@ class RadioThermostat(ThermostatDevice):
 
     @property
     def current_temperature(self):
-        """ Returns the current temperature. """
+        """Return the current temperature."""
         return round(self._current_temperature, 1)
 
     @property
     def operation(self):
-        """ Returns current operation. head, cool idle """
+        """Return the current operation. head, cool idle."""
         return self._operation
 
     @property
     def target_temperature(self):
-        """ Returns the temperature we try to reach. """
-
+        """Return the temperature we try to reach."""
         return round(self._target_temperature, 1)
 
     def update(self):
-        """ Update the data from the thermostat. """
+        """Update the data from the thermostat."""
         self._current_temperature = self.device.temp['raw']
         self._name = self.device.name['raw']
         if self.device.tmode['human'] == 'Cool':
@@ -108,7 +106,7 @@ class RadioThermostat(ThermostatDevice):
             self._operation = STATE_IDLE
 
     def set_temperature(self, temperature):
-        """ Set new target temperature """
+        """Set new target temperature."""
         if self._operation == STATE_COOL:
             self.device.t_cool = temperature
         elif self._operation == STATE_HEAT:
@@ -119,7 +117,7 @@ class RadioThermostat(ThermostatDevice):
             self.device.hold = 0
 
     def set_time(self):
-        """ Set device time """
+        """Set device time."""
         now = datetime.datetime.now()
         self.device.time = {'day': now.weekday(),
                             'hour': now.hour, 'minute': now.minute}