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homeassistant/components/random/sensor.py

@@ -5,31 +5,36 @@ import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
-    CONF_MAXIMUM, CONF_MINIMUM, CONF_NAME, CONF_UNIT_OF_MEASUREMENT)
+    CONF_MAXIMUM,
+    CONF_MINIMUM,
+    CONF_NAME,
+    CONF_UNIT_OF_MEASUREMENT,
+)
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
 _LOGGER = logging.getLogger(__name__)
 
-ATTR_MAXIMUM = 'maximum'
-ATTR_MINIMUM = 'minimum'
+ATTR_MAXIMUM = "maximum"
+ATTR_MINIMUM = "minimum"
 
-DEFAULT_NAME = 'Random Sensor'
+DEFAULT_NAME = "Random Sensor"
 DEFAULT_MIN = 0
 DEFAULT_MAX = 20
 
-ICON = 'mdi:hanger'
+ICON = "mdi:hanger"
 
-PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
-    vol.Optional(CONF_MAXIMUM, default=DEFAULT_MAX): cv.positive_int,
-    vol.Optional(CONF_MINIMUM, default=DEFAULT_MIN): cv.positive_int,
-    vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
-    vol.Optional(CONF_UNIT_OF_MEASUREMENT): cv.string,
-})
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
+    {
+        vol.Optional(CONF_MAXIMUM, default=DEFAULT_MAX): cv.positive_int,
+        vol.Optional(CONF_MINIMUM, default=DEFAULT_MIN): cv.positive_int,
+        vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
+        vol.Optional(CONF_UNIT_OF_MEASUREMENT): cv.string,
+    }
+)
 
 
-async def async_setup_platform(
-        hass, config, async_add_entities, discovery_info=None):
+async def async_setup_platform(hass, config, async_add_entities, discovery_info=None):
     """Set up the Random number sensor."""
     name = config.get(CONF_NAME)
     minimum = config.get(CONF_MINIMUM)
@@ -73,12 +78,10 @@ class RandomSensor(Entity):
     @property
     def device_state_attributes(self):
         """Return the attributes of the sensor."""
-        return {
-            ATTR_MAXIMUM: self._maximum,
-            ATTR_MINIMUM: self._minimum,
-        }
+        return {ATTR_MAXIMUM: self._maximum, ATTR_MINIMUM: self._minimum}
 
     async def async_update(self):
         """Get a new number and updates the states."""
         from random import randrange
+
         self._state = randrange(self._minimum, self._maximum + 1)