Move constant to 'const.py' and use already defined ones (#10211)

homeassistant/components/notify/discord.py

@@ -12,13 +12,12 @@ import voluptuous as vol
 import homeassistant.helpers.config_validation as cv
 from homeassistant.components.notify import (
     PLATFORM_SCHEMA, BaseNotificationService, ATTR_TARGET)
+from homeassistant.const import CONF_TOKEN
 
 _LOGGER = logging.getLogger(__name__)
 
 REQUIREMENTS = ['discord.py==0.16.12']
 
-CONF_TOKEN = 'token'
-
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_TOKEN): cv.string
 })

homeassistant/components/notify/ecobee.py

@@ -8,14 +8,14 @@ import logging
 
 import voluptuous as vol
 
+import homeassistant.helpers.config_validation as cv
 from homeassistant.components import ecobee
 from homeassistant.components.notify import (
     BaseNotificationService, PLATFORM_SCHEMA)  # NOQA
-import homeassistant.helpers.config_validation as cv
 
-DEPENDENCIES = ['ecobee']
 _LOGGER = logging.getLogger(__name__)
 
+DEPENDENCIES = ['ecobee']
 
 CONF_INDEX = 'index'
 

homeassistant/components/notify/hipchat.py

@@ -11,14 +11,13 @@ import voluptuous as vol
 import homeassistant.helpers.config_validation as cv
 from homeassistant.components.notify import (
     ATTR_TARGET, ATTR_DATA, PLATFORM_SCHEMA, BaseNotificationService)
-from homeassistant.const import CONF_TOKEN, CONF_HOST
+from homeassistant.const import CONF_TOKEN, CONF_HOST, CONF_ROOM
 
 REQUIREMENTS = ['hipnotify==1.0.8']
 
 _LOGGER = logging.getLogger(__name__)
 
 CONF_COLOR = 'color'
-CONF_ROOM = 'room'
 CONF_NOTIFY = 'notify'
 CONF_FORMAT = 'format'
 

homeassistant/components/notify/rocketchat.py

@@ -8,17 +8,14 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.const import (
-    CONF_URL, CONF_USERNAME, CONF_PASSWORD)
-from homeassistant.components.notify import (
-    ATTR_DATA, PLATFORM_SCHEMA,
-    BaseNotificationService)
 import homeassistant.helpers.config_validation as cv
+from homeassistant.const import (
+    CONF_URL, CONF_USERNAME, CONF_PASSWORD, CONF_ROOM)
+from homeassistant.components.notify import (
+    ATTR_DATA, PLATFORM_SCHEMA, BaseNotificationService)
 
 REQUIREMENTS = ['rocketchat-API==0.6.1']
 
-CONF_ROOM = 'room'
-
 _LOGGER = logging.getLogger(__name__)
 
 # pylint: disable=no-value-for-parameter
@@ -44,11 +41,11 @@ def get_service(hass, config, discovery_info=None):
         return RocketChatNotificationService(url, username, password, room)
     except RocketConnectionException:
         _LOGGER.warning(
-            "Unable to connect to Rocket.Chat server at %s.", url)
+            "Unable to connect to Rocket.Chat server at %s", url)
     except RocketAuthenticationException:
         _LOGGER.warning(
-            "Rocket.Chat authentication failed for user %s.", username)
-        _LOGGER.info("Please check your username/password.")
+            "Rocket.Chat authentication failed for user %s", username)
+        _LOGGER.info("Please check your username/password")
 
     return None
 
@@ -65,8 +62,8 @@ class RocketChatNotificationService(BaseNotificationService):
     def send_message(self, message="", **kwargs):
         """Send a message to Rocket.Chat."""
         data = kwargs.get(ATTR_DATA) or {}
-        resp = self._server.chat_post_message(message, channel=self._room,
-                                              **data)
+        resp = self._server.chat_post_message(
+            message, channel=self._room, **data)
         if resp.status_code == 200:
             success = resp.json()["success"]
             if not success:

homeassistant/components/notify/xmpp.py

@@ -11,7 +11,8 @@ import voluptuous as vol
 import homeassistant.helpers.config_validation as cv
 from homeassistant.components.notify import (
     ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
-from homeassistant.const import CONF_PASSWORD, CONF_SENDER, CONF_RECIPIENT
+from homeassistant.const import (
+    CONF_PASSWORD, CONF_SENDER, CONF_RECIPIENT, CONF_ROOM)
 
 REQUIREMENTS = ['sleekxmpp==1.3.2',
                 'dnspython3==1.15.0',
@@ -22,7 +23,6 @@ _LOGGER = logging.getLogger(__name__)
 
 CONF_TLS = 'tls'
 CONF_VERIFY = 'verify'
-CONF_ROOM = 'room'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_SENDER): cv.string,

homeassistant/components/sensor/airvisual.py

@@ -14,7 +14,7 @@ from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
     ATTR_ATTRIBUTION, ATTR_LATITUDE, ATTR_LONGITUDE, CONF_API_KEY,
     CONF_LATITUDE, CONF_LONGITUDE, CONF_MONITORED_CONDITIONS, CONF_STATE,
-    CONF_SHOW_ON_MAP)
+    CONF_SHOW_ON_MAP, CONF_RADIUS)
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
@@ -31,7 +31,6 @@ ATTR_TIMESTAMP = 'timestamp'
 
 CONF_CITY = 'city'
 CONF_COUNTRY = 'country'
-CONF_RADIUS = 'radius'
 CONF_ATTRIBUTION = "Data provided by AirVisual"
 
 MASS_PARTS_PER_MILLION = 'ppm'

homeassistant/components/sensor/citybikes.py

@@ -12,46 +12,50 @@ import aiohttp
 import async_timeout
 import voluptuous as vol
 
+import homeassistant.helpers.config_validation as cv
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
-    CONF_NAME, CONF_LATITUDE, CONF_LONGITUDE,
+    CONF_NAME, CONF_LATITUDE, CONF_LONGITUDE, CONF_RADIUS,
     ATTR_ATTRIBUTION, ATTR_LOCATION, ATTR_LATITUDE, ATTR_LONGITUDE,
-    ATTR_FRIENDLY_NAME, STATE_UNKNOWN, LENGTH_METERS, LENGTH_FEET)
+    ATTR_FRIENDLY_NAME, STATE_UNKNOWN, LENGTH_METERS, LENGTH_FEET,
+    ATTR_ID)
 from homeassistant.exceptions import PlatformNotReady
 from homeassistant.helpers.event import async_track_time_interval
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.util import location, distance
-import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
+ATTR_EMPTY_SLOTS = 'empty_slots'
+ATTR_EXTRA = 'extra'
+ATTR_FREE_BIKES = 'free_bikes'
+ATTR_NAME = 'name'
+ATTR_NETWORK = 'network'
+ATTR_NETWORKS_LIST = 'networks'
+ATTR_STATIONS_LIST = 'stations'
+ATTR_TIMESTAMP = 'timestamp'
+ATTR_UID = 'uid'
+
+CONF_NETWORK = 'network'
+CONF_STATIONS_LIST = 'stations'
+
 DEFAULT_ENDPOINT = 'https://api.citybik.es/{uri}'
+DOMAIN = 'citybikes'
+
+MONITORED_NETWORKS = 'monitored-networks'
+
 NETWORKS_URI = 'v2/networks'
-STATIONS_URI = 'v2/networks/{uid}?fields=network.stations'
 
 REQUEST_TIMEOUT = 5  # In seconds; argument to asyncio.timeout
+
 SCAN_INTERVAL = timedelta(minutes=5)  # Timely, and doesn't suffocate the API
-DOMAIN = 'citybikes'
-MONITORED_NETWORKS = 'monitored-networks'
-CONF_NETWORK = 'network'
-CONF_RADIUS = 'radius'
-CONF_STATIONS_LIST = 'stations'
-ATTR_NETWORKS_LIST = 'networks'
-ATTR_NETWORK = 'network'
-ATTR_STATIONS_LIST = 'stations'
-ATTR_ID = 'id'
-ATTR_UID = 'uid'
-ATTR_NAME = 'name'
-ATTR_EXTRA = 'extra'
-ATTR_TIMESTAMP = 'timestamp'
-ATTR_EMPTY_SLOTS = 'empty_slots'
-ATTR_FREE_BIKES = 'free_bikes'
-ATTR_TIMESTAMP = 'timestamp'
+
+STATIONS_URI = 'v2/networks/{uid}?fields=network.stations'
+
 CITYBIKES_ATTRIBUTION = "Information provided by the CityBikes Project "\
                         "(https://citybik.es/#about)"
 
-
 PLATFORM_SCHEMA = vol.All(
     cv.has_at_least_one_key(CONF_RADIUS, CONF_STATIONS_LIST),
     PLATFORM_SCHEMA.extend({
@@ -61,10 +65,7 @@ PLATFORM_SCHEMA = vol.All(
         vol.Inclusive(CONF_LONGITUDE, 'coordinates'): cv.longitude,
         vol.Optional(CONF_RADIUS, 'station_filter'): cv.positive_int,
         vol.Optional(CONF_STATIONS_LIST, 'station_filter'):
-            vol.All(
-                cv.ensure_list,
-                vol.Length(min=1),
-                [cv.string])
+            vol.All(cv.ensure_list, vol.Length(min=1), [cv.string])
     }))
 
 NETWORK_SCHEMA = vol.Schema({
@@ -88,9 +89,8 @@ STATION_SCHEMA = vol.Schema({
     vol.Required(ATTR_ID): cv.string,
     vol.Required(ATTR_NAME): cv.string,
     vol.Required(ATTR_TIMESTAMP): cv.string,
-    vol.Optional(ATTR_EXTRA): vol.Schema({
-        vol.Optional(ATTR_UID): cv.string
-        }, extra=vol.REMOVE_EXTRA)
+    vol.Optional(ATTR_EXTRA):
+        vol.Schema({vol.Optional(ATTR_UID): cv.string}, extra=vol.REMOVE_EXTRA)
     }, extra=vol.REMOVE_EXTRA)
 
 STATIONS_RESPONSE_SCHEMA = vol.Schema({

homeassistant/components/sensor/crimereports.py

@@ -13,7 +13,7 @@ import voluptuous as vol
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
     CONF_INCLUDE, CONF_EXCLUDE, CONF_NAME, CONF_LATITUDE, CONF_LONGITUDE,
-    ATTR_ATTRIBUTION, ATTR_LATITUDE, ATTR_LONGITUDE,
+    ATTR_ATTRIBUTION, ATTR_LATITUDE, ATTR_LONGITUDE, CONF_RADIUS,
     LENGTH_KILOMETERS, LENGTH_METERS)
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import slugify
@@ -25,8 +25,6 @@ REQUIREMENTS = ['crimereports==1.0.0']
 
 _LOGGER = logging.getLogger(__name__)
 
-CONF_RADIUS = 'radius'
-
 DOMAIN = 'crimereports'
 
 EVENT_INCIDENT = '{}_incident'.format(DOMAIN)
@@ -58,11 +56,11 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
 
 
 class CrimeReportsSensor(Entity):
-    """Crime Reports Sensor."""
+    """Representation of a Crime Reports Sensor."""
 
     def __init__(self, hass, name, latitude, longitude, radius,
                  include, exclude):
-        """Initialize the sensor."""
+        """Initialize the Crime Reports sensor."""
         import crimereports
         self._hass = hass
         self._name = name

homeassistant/components/sensor/geo_rss_events.py

@@ -8,7 +8,6 @@ and grouped by category.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/sensor.geo_rss_events/
 """
-
 import logging
 from collections import namedtuple
 from datetime import timedelta
@@ -17,8 +16,8 @@ import voluptuous as vol
 
 import homeassistant.helpers.config_validation as cv
 from homeassistant.components.sensor import PLATFORM_SCHEMA
-from homeassistant.const import (STATE_UNKNOWN, CONF_UNIT_OF_MEASUREMENT,
-                                 CONF_NAME)
+from homeassistant.const import (
+    STATE_UNKNOWN, CONF_UNIT_OF_MEASUREMENT, CONF_NAME, CONF_RADIUS, CONF_URL)
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
@@ -31,8 +30,6 @@ ATTR_DISTANCE = 'distance'
 ATTR_TITLE = 'title'
 
 CONF_CATEGORIES = 'categories'
-CONF_RADIUS = 'radius'
-CONF_URL = 'url'
 
 DEFAULT_ICON = 'mdi:alert'
 DEFAULT_NAME = "Event Service"
@@ -50,8 +47,8 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_URL): cv.string,
     vol.Optional(CONF_RADIUS, default=DEFAULT_RADIUS_IN_KM): vol.Coerce(float),
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
-    vol.Optional(CONF_CATEGORIES, default=[]): vol.All(cv.ensure_list,
-                                                       [cv.string]),
+    vol.Optional(CONF_CATEGORIES, default=[]):
+        vol.All(cv.ensure_list, [cv.string]),
     vol.Optional(CONF_UNIT_OF_MEASUREMENT,
                  default=DEFAULT_UNIT_OF_MEASUREMENT): cv.string,
 })
@@ -59,7 +56,6 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
 
 def setup_platform(hass, config, add_devices, discovery_info=None):
     """Set up the GeoRSS component."""
-    # Grab location from config
     home_latitude = hass.config.latitude
     home_longitude = hass.config.longitude
     url = config.get(CONF_URL)
@@ -154,7 +150,7 @@ class GeoRssServiceSensor(Entity):
 
 
 class GeoRssServiceData(object):
-    """Provides access to GeoRSS feed and stores the latest data."""
+    """Provide access to GeoRSS feed and stores the latest data."""
 
     def __init__(self, home_latitude, home_longitude, url, radius_in_km):
         """Initialize the update service."""

homeassistant/components/sensor/gitter.py

@@ -10,7 +10,7 @@ import voluptuous as vol
 
 import homeassistant.helpers.config_validation as cv
 from homeassistant.components.sensor import PLATFORM_SCHEMA
-from homeassistant.const import CONF_NAME, CONF_API_KEY
+from homeassistant.const import CONF_NAME, CONF_API_KEY, CONF_ROOM
 from homeassistant.helpers.entity import Entity
 
 REQUIREMENTS = ['gitterpy==0.1.6']
@@ -21,8 +21,6 @@ ATTR_MENTION = 'mention'
 ATTR_ROOM = 'room'
 ATTR_USERNAME = 'username'
 
-CONF_ROOM = 'room'
-
 DEFAULT_NAME = 'Gitter messages'
 DEFAULT_ROOM = 'home-assistant/home-assistant'
 

homeassistant/components/sensor/mqtt_room.py

@@ -11,13 +11,13 @@ from datetime import timedelta
 
 import voluptuous as vol
 
-from homeassistant.core import callback
 import homeassistant.components.mqtt as mqtt
+import homeassistant.helpers.config_validation as cv
+from homeassistant.components.mqtt import CONF_STATE_TOPIC
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
-    CONF_NAME, CONF_TIMEOUT, STATE_NOT_HOME)
-from homeassistant.components.mqtt import CONF_STATE_TOPIC
-import homeassistant.helpers.config_validation as cv
+    CONF_NAME, CONF_TIMEOUT, STATE_NOT_HOME, ATTR_ID)
+from homeassistant.core import callback
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import dt, slugify
 
@@ -27,16 +27,14 @@ DEPENDENCIES = ['mqtt']
 
 ATTR_DEVICE_ID = 'device_id'
 ATTR_DISTANCE = 'distance'
-ATTR_ID = 'id'
 ATTR_ROOM = 'room'
 
 CONF_DEVICE_ID = 'device_id'
-CONF_ROOM = 'room'
 CONF_AWAY_TIMEOUT = 'away_timeout'
 
+DEFAULT_AWAY_TIMEOUT = 0
 DEFAULT_NAME = 'Room Sensor'
 DEFAULT_TIMEOUT = 5
-DEFAULT_AWAY_TIMEOUT = 0
 DEFAULT_TOPIC = 'room_presence'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({

homeassistant/components/sensor/opensky.py

@@ -10,27 +10,29 @@ from datetime import timedelta
 import requests
 import voluptuous as vol
 
+import homeassistant.helpers.config_validation as cv
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
-    CONF_NAME, CONF_LATITUDE, CONF_LONGITUDE,
+    CONF_NAME, CONF_LATITUDE, CONF_LONGITUDE, CONF_RADIUS,
     ATTR_ATTRIBUTION, ATTR_LATITUDE, ATTR_LONGITUDE,
     LENGTH_KILOMETERS, LENGTH_METERS)
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import distance as util_distance
 from homeassistant.util import location as util_location
-import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
-SCAN_INTERVAL = timedelta(seconds=12)  # opensky public limit is 10 seconds
-DOMAIN = 'opensky'
-EVENT_OPENSKY_ENTRY = '{}_entry'.format(DOMAIN)
-EVENT_OPENSKY_EXIT = '{}_exit'.format(DOMAIN)
-CONF_RADIUS = 'radius'
+ATTR_CALLSIGN = 'callsign'
+ATTR_ON_GROUND = 'on_ground'
 ATTR_SENSOR = 'sensor'
 ATTR_STATES = 'states'
-ATTR_ON_GROUND = 'on_ground'
-ATTR_CALLSIGN = 'callsign'
+
+DOMAIN = 'opensky'
+
+EVENT_OPENSKY_ENTRY = '{}_entry'.format(DOMAIN)
+EVENT_OPENSKY_EXIT = '{}_exit'.format(DOMAIN)
+SCAN_INTERVAL = timedelta(seconds=12)  # opensky public limit is 10 seconds
+
 OPENSKY_ATTRIBUTION = "Information provided by the OpenSky Network "\
                       "(https://opensky-network.org)"
 OPENSKY_API_URL = 'https://opensky-network.org/api/states/all'
@@ -88,7 +90,7 @@ class OpenSkySensor(Entity):
         for callsign in callsigns:
             data = {
                 ATTR_CALLSIGN: callsign,
-                ATTR_SENSOR: self._name
+                ATTR_SENSOR: self._name,
             }
             self._hass.bus.fire(event, data)
 

homeassistant/components/sensor/tado.py

@@ -9,12 +9,12 @@ import logging
 from homeassistant.const import TEMP_CELSIUS
 from homeassistant.helpers.entity import Entity
 from homeassistant.components.tado import (DATA_TADO)
+from homeassistant.const import (ATTR_ID)
 
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_DATA_ID = 'data_id'
 ATTR_DEVICE = 'device'
-ATTR_ID = 'id'
 ATTR_NAME = 'name'
 ATTR_ZONE = 'zone'
 

homeassistant/components/zone.py

@@ -9,15 +9,15 @@ import logging
 
 import voluptuous as vol
 
+import homeassistant.helpers.config_validation as cv
 from homeassistant.const import (
     ATTR_HIDDEN, ATTR_LATITUDE, ATTR_LONGITUDE, CONF_NAME, CONF_LATITUDE,
-    CONF_LONGITUDE, CONF_ICON)
+    CONF_LONGITUDE, CONF_ICON, CONF_RADIUS)
 from homeassistant.loader import bind_hass
 from homeassistant.helpers import config_per_platform
 from homeassistant.helpers.entity import Entity, async_generate_entity_id
 from homeassistant.util.async import run_callback_threadsafe
 from homeassistant.util.location import distance
-import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -25,7 +25,6 @@ ATTR_PASSIVE = 'passive'
 ATTR_RADIUS = 'radius'
 
 CONF_PASSIVE = 'passive'
-CONF_RADIUS = 'radius'
 
 DEFAULT_NAME = 'Unnamed zone'
 DEFAULT_PASSIVE = False

homeassistant/const.py

@@ -140,11 +140,13 @@ CONF_PROFILE_NAME = 'profile_name'
 CONF_PROTOCOL = 'protocol'
 CONF_PROXY_SSL = 'proxy_ssl'
 CONF_QUOTE = 'quote'
+CONF_RADIUS = 'radius'
 CONF_RECIPIENT = 'recipient'
 CONF_REGION = 'region'
 CONF_RESOURCE = 'resource'
 CONF_RESOURCES = 'resources'
 CONF_RGB = 'rgb'
+CONF_ROOM = 'room'
 CONF_SCAN_INTERVAL = 'scan_interval'
 CONF_SENDER = 'sender'
 CONF_SENSOR_TYPE = 'sensor_type'
@@ -234,6 +236,9 @@ ATTR_DOMAIN = 'domain'
 ATTR_SERVICE = 'service'
 ATTR_SERVICE_DATA = 'service_data'
 
+# IDs
+ATTR_ID = 'id'
+
 # Data for a SERVICE_EXECUTED event
 ATTR_SERVICE_CALL_ID = 'service_call_id'
 
@@ -258,38 +263,6 @@ CONF_UNIT_SYSTEM_IMPERIAL = 'imperial'  # type: str
 # Electrical attributes
 ATTR_VOLTAGE = 'voltage'
 
-# Temperature attribute
-ATTR_TEMPERATURE = 'temperature'
-TEMP_CELSIUS = '°C'
-TEMP_FAHRENHEIT = '°F'
-
-# Length units
-LENGTH_CENTIMETERS = 'cm'  # type: str
-LENGTH_METERS = 'm'  # type: str
-LENGTH_KILOMETERS = 'km'  # type: str
-
-LENGTH_INCHES = 'in'  # type: str
-LENGTH_FEET = 'ft'  # type: str
-LENGTH_YARD = 'yd'  # type: str
-LENGTH_MILES = 'mi'  # type: str
-
-# Volume units
-VOLUME_LITERS = 'L'  # type: str
-VOLUME_MILLILITERS = 'mL'  # type: str
-
-VOLUME_GALLONS = 'gal'  # type: str
-VOLUME_FLUID_OUNCE = 'fl. oz.'  # type: str
-
-# Mass units
-MASS_GRAMS = 'g'  # type: str
-MASS_KILOGRAMS = 'kg'  # type: str
-
-MASS_OUNCES = 'oz'  # type: str
-MASS_POUNDS = 'lb'  # type: str
-
-# UV Index units
-UNIT_UV_INDEX = 'UV index'  # type: str
-
 # Contains the information that is discovered
 ATTR_DISCOVERED = 'discovered'
 
@@ -341,6 +314,41 @@ ATTR_SUPPORTED_FEATURES = 'supported_features'
 # Class of device within its domain
 ATTR_DEVICE_CLASS = 'device_class'
 
+# Temperature attribute
+ATTR_TEMPERATURE = 'temperature'
+
+# #### UNITS OF MEASUREMENT ####
+# Temperature units
+TEMP_CELSIUS = '°C'
+TEMP_FAHRENHEIT = '°F'
+
+# Length units
+LENGTH_CENTIMETERS = 'cm'  # type: str
+LENGTH_METERS = 'm'  # type: str
+LENGTH_KILOMETERS = 'km'  # type: str
+
+LENGTH_INCHES = 'in'  # type: str
+LENGTH_FEET = 'ft'  # type: str
+LENGTH_YARD = 'yd'  # type: str
+LENGTH_MILES = 'mi'  # type: str
+
+# Volume units
+VOLUME_LITERS = 'L'  # type: str
+VOLUME_MILLILITERS = 'mL'  # type: str
+
+VOLUME_GALLONS = 'gal'  # type: str
+VOLUME_FLUID_OUNCE = 'fl. oz.'  # type: str
+
+# Mass units
+MASS_GRAMS = 'g'  # type: str
+MASS_KILOGRAMS = 'kg'  # type: str
+
+MASS_OUNCES = 'oz'  # type: str
+MASS_POUNDS = 'lb'  # type: str
+
+# UV Index units
+UNIT_UV_INDEX = 'UV index'  # type: str
+
 # #### SERVICES ####
 SERVICE_HOMEASSISTANT_STOP = 'stop'
 SERVICE_HOMEASSISTANT_RESTART = 'restart'