diff --git a/homeassistant/components/abode.py b/homeassistant/components/abode.py
index 6d5feb87dc2b12..bafbc0781caf73 100644
--- a/homeassistant/components/abode.py
+++ b/homeassistant/components/abode.py
@@ -85,7 +85,7 @@
 ]
 
 
-class AbodeSystem(object):
+class AbodeSystem:
     """Abode System class."""
 
     def __init__(self, username, password, cache,
diff --git a/homeassistant/components/ads/__init__.py b/homeassistant/components/ads/__init__.py
index d603843f51f3fb..100444c02116d4 100644
--- a/homeassistant/components/ads/__init__.py
+++ b/homeassistant/components/ads/__init__.py
@@ -110,7 +110,7 @@ def handle_write_data_by_name(call):
 )
 
 
-class AdsHub(object):
+class AdsHub:
     """Representation of an ADS connection."""
 
     def __init__(self, ads_client):
diff --git a/homeassistant/components/alexa/intent.py b/homeassistant/components/alexa/intent.py
index b6d406bd550f33..8d4520d74e83e1 100644
--- a/homeassistant/components/alexa/intent.py
+++ b/homeassistant/components/alexa/intent.py
@@ -210,7 +210,7 @@ def resolve_slot_synonyms(key, request):
     return resolved_value
 
 
-class AlexaResponse(object):
+class AlexaResponse:
     """Help generating the response for Alexa."""
 
     def __init__(self, hass, intent_info):
diff --git a/homeassistant/components/alexa/smart_home.py b/homeassistant/components/alexa/smart_home.py
index 9b7da71a293192..80fa4ccb4bfba3 100644
--- a/homeassistant/components/alexa/smart_home.py
+++ b/homeassistant/components/alexa/smart_home.py
@@ -55,7 +55,7 @@
 ENTITY_ADAPTERS = Registry()
 
 
-class _DisplayCategory(object):
+class _DisplayCategory:
     """Possible display categories for Discovery response.
 
     https://developer.amazon.com/docs/device-apis/alexa-discovery.html#display-categories
@@ -153,7 +153,7 @@ class _UnsupportedProperty(Exception):
     """This entity does not support the requested Smart Home API property."""
 
 
-class _AlexaEntity(object):
+class _AlexaEntity:
     """An adaptation of an entity, expressed in Alexa's terms.
 
     The API handlers should manipulate entities only through this interface.
@@ -208,7 +208,7 @@ def interfaces(self):
         raise NotImplementedError
 
 
-class _AlexaInterface(object):
+class _AlexaInterface:
     def __init__(self, entity):
         self.entity = entity
 
@@ -615,7 +615,7 @@ def interfaces(self):
             yield _AlexaTemperatureSensor(self.entity)
 
 
-class _Cause(object):
+class _Cause:
     """Possible causes for property changes.
 
     https://developer.amazon.com/docs/smarthome/state-reporting-for-a-smart-home-skill.html#cause-object
diff --git a/homeassistant/components/amcrest.py b/homeassistant/components/amcrest.py
index 820ca41ad2e73f..bcd0c38c3bdff2 100644
--- a/homeassistant/components/amcrest.py
+++ b/homeassistant/components/amcrest.py
@@ -164,7 +164,7 @@ def setup(hass, config):
     return True
 
 
-class AmcrestDevice(object):
+class AmcrestDevice:
     """Representation of a base Amcrest discovery device."""
 
     def __init__(self, camera, name, authentication, ffmpeg_arguments,
diff --git a/homeassistant/components/apcupsd.py b/homeassistant/components/apcupsd.py
index 7e2b4cda28f827..8808cee79a3beb 100644
--- a/homeassistant/components/apcupsd.py
+++ b/homeassistant/components/apcupsd.py
@@ -58,7 +58,7 @@ def setup(hass, config):
     return True
 
 
-class APCUPSdData(object):
+class APCUPSdData:
     """Stores the data retrieved from APCUPSd.
 
     For each entity to use, acts as the single point responsible for fetching
diff --git a/homeassistant/components/arduino.py b/homeassistant/components/arduino.py
index 8625685c057dfe..785f8c57f943ea 100644
--- a/homeassistant/components/arduino.py
+++ b/homeassistant/components/arduino.py
@@ -62,7 +62,7 @@ def start_arduino(event):
     return True
 
 
-class ArduinoBoard(object):
+class ArduinoBoard:
     """Representation of an Arduino board."""
 
     def __init__(self, port):
diff --git a/homeassistant/components/asterisk_mbox.py b/homeassistant/components/asterisk_mbox.py
index 0b5e7c1e1d7831..e273d7d6f6a54e 100644
--- a/homeassistant/components/asterisk_mbox.py
+++ b/homeassistant/components/asterisk_mbox.py
@@ -48,7 +48,7 @@ def setup(hass, config):
     return True
 
 
-class AsteriskData(object):
+class AsteriskData:
     """Store Asterisk mailbox data."""
 
     def __init__(self, hass, host, port, password):
diff --git a/homeassistant/components/binary_sensor/arest.py b/homeassistant/components/binary_sensor/arest.py
index 73751ef14bb00a..0366f753ba6c49 100644
--- a/homeassistant/components/binary_sensor/arest.py
+++ b/homeassistant/components/binary_sensor/arest.py
@@ -89,7 +89,7 @@ def update(self):
         self.arest.update()
 
 
-class ArestData(object):
+class ArestData:
     """Class for handling the data retrieval for pins."""
 
     def __init__(self, resource, pin):
diff --git a/homeassistant/components/binary_sensor/aurora.py b/homeassistant/components/binary_sensor/aurora.py
index 772792f5785a15..0c33877854fd98 100644
--- a/homeassistant/components/binary_sensor/aurora.py
+++ b/homeassistant/components/binary_sensor/aurora.py
@@ -99,7 +99,7 @@ def update(self):
         self.aurora_data.update()
 
 
-class AuroraData(object):
+class AuroraData:
     """Get aurora forecast."""
 
     def __init__(self, latitude, longitude, threshold):
diff --git a/homeassistant/components/binary_sensor/hikvision.py b/homeassistant/components/binary_sensor/hikvision.py
index f9ff4ac0a7a7ce..de6ad8223d729d 100644
--- a/homeassistant/components/binary_sensor/hikvision.py
+++ b/homeassistant/components/binary_sensor/hikvision.py
@@ -117,7 +117,7 @@ def setup_platform(hass, config, add_entities, discovery_info=None):
     add_entities(entities)
 
 
-class HikvisionData(object):
+class HikvisionData:
     """Hikvision device event stream object."""
 
     def __init__(self, hass, url, port, name, username, password):
diff --git a/homeassistant/components/binary_sensor/iss.py b/homeassistant/components/binary_sensor/iss.py
index d35c36a012e940..d0654317248eee 100644
--- a/homeassistant/components/binary_sensor/iss.py
+++ b/homeassistant/components/binary_sensor/iss.py
@@ -101,7 +101,7 @@ def update(self):
         self.iss_data.update()
 
 
-class IssData(object):
+class IssData:
     """Get data from the ISS API."""
 
     def __init__(self, latitude, longitude):
diff --git a/homeassistant/components/binary_sensor/ping.py b/homeassistant/components/binary_sensor/ping.py
index 0830d86dc2ac18..bb597f208e667b 100644
--- a/homeassistant/components/binary_sensor/ping.py
+++ b/homeassistant/components/binary_sensor/ping.py
@@ -96,7 +96,7 @@ def update(self):
         self.ping.update()
 
 
-class PingData(object):
+class PingData:
     """The Class for handling the data retrieval."""
 
     def __init__(self, host, count):
diff --git a/homeassistant/components/binary_sensor/tapsaff.py b/homeassistant/components/binary_sensor/tapsaff.py
index c0f6ca3f112257..5b8e133b5f4233 100644
--- a/homeassistant/components/binary_sensor/tapsaff.py
+++ b/homeassistant/components/binary_sensor/tapsaff.py
@@ -63,7 +63,7 @@ def update(self):
         self.data.update()
 
 
-class TapsAffData(object):
+class TapsAffData:
     """Class for handling the data retrieval for pins."""
 
     def __init__(self, location):
diff --git a/homeassistant/components/binary_sensor/zwave.py b/homeassistant/components/binary_sensor/zwave.py
index fc18648f907978..784a96d8615733 100644
--- a/homeassistant/components/binary_sensor/zwave.py
+++ b/homeassistant/components/binary_sensor/zwave.py
@@ -10,7 +10,7 @@
 from homeassistant.helpers.event import track_point_in_time
 from homeassistant.components import zwave
 from homeassistant.components.zwave import workaround
-from homeassistant.components.zwave import async_setup_platform  # noqa # pylint: disable=unused-import
+from homeassistant.components.zwave import async_setup_platform  # noqa pylint: disable=unused-import
 from homeassistant.components.binary_sensor import (
     DOMAIN,
     BinarySensorDevice)
diff --git a/homeassistant/components/blink.py b/homeassistant/components/blink.py
index a44f0163787b8f..e84643711ebb61 100644
--- a/homeassistant/components/blink.py
+++ b/homeassistant/components/blink.py
@@ -40,7 +40,7 @@
 })
 
 
-class BlinkSystem(object):
+class BlinkSystem:
     """Blink System class."""
 
     def __init__(self, config_info):
diff --git a/homeassistant/components/bloomsky.py b/homeassistant/components/bloomsky.py
index bc9d3acf54fe60..00377b3f12bd7c 100644
--- a/homeassistant/components/bloomsky.py
+++ b/homeassistant/components/bloomsky.py
@@ -50,7 +50,7 @@ def setup(hass, config):
     return True
 
 
-class BloomSky(object):
+class BloomSky:
     """Handle all communication with the BloomSky API."""
 
     # API documentation at http://weatherlution.com/bloomsky-api/
diff --git a/homeassistant/components/bmw_connected_drive/__init__.py b/homeassistant/components/bmw_connected_drive/__init__.py
index a7ed262ac2c0ca..061b09c1b3b52d 100644
--- a/homeassistant/components/bmw_connected_drive/__init__.py
+++ b/homeassistant/components/bmw_connected_drive/__init__.py
@@ -118,7 +118,7 @@ def execute_service(call):
     return cd_account
 
 
-class BMWConnectedDriveAccount(object):
+class BMWConnectedDriveAccount:
     """Representation of a BMW vehicle."""
 
     def __init__(self, username: str, password: str, region_str: str,
diff --git a/homeassistant/components/calendar/caldav.py b/homeassistant/components/calendar/caldav.py
index 9c30d1481f8af9..3db24790aaf4f4 100644
--- a/homeassistant/components/calendar/caldav.py
+++ b/homeassistant/components/calendar/caldav.py
@@ -125,7 +125,7 @@ async def async_get_events(self, hass, start_date, end_date):
         return await self.data.async_get_events(hass, start_date, end_date)
 
 
-class WebDavCalendarData(object):
+class WebDavCalendarData:
     """Class to utilize the calendar dav client object to get next event."""
 
     def __init__(self, calendar, include_all_day, search):
diff --git a/homeassistant/components/calendar/demo.py b/homeassistant/components/calendar/demo.py
index 53129d3316cf60..0bf09f6f2c7646 100644
--- a/homeassistant/components/calendar/demo.py
+++ b/homeassistant/components/calendar/demo.py
@@ -28,7 +28,7 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
     ])
 
 
-class DemoGoogleCalendarData(object):
+class DemoGoogleCalendarData:
     """Representation of a Demo Calendar element."""
 
     event = {}
diff --git a/homeassistant/components/calendar/google.py b/homeassistant/components/calendar/google.py
index 279fb1e2694ced..925bbcacddf1dd 100644
--- a/homeassistant/components/calendar/google.py
+++ b/homeassistant/components/calendar/google.py
@@ -55,7 +55,7 @@ async def async_get_events(self, hass, start_date, end_date):
         return await self.data.async_get_events(hass, start_date, end_date)
 
 
-class GoogleCalendarData(object):
+class GoogleCalendarData:
     """Class to utilize calendar service object to get next event."""
 
     def __init__(self, calendar_service, calendar_id, search,
diff --git a/homeassistant/components/calendar/todoist.py b/homeassistant/components/calendar/todoist.py
index 42ab7b01c63b41..ba1f60027ba3cb 100644
--- a/homeassistant/components/calendar/todoist.py
+++ b/homeassistant/components/calendar/todoist.py
@@ -280,7 +280,7 @@ def device_state_attributes(self):
         return attributes
 
 
-class TodoistProjectData(object):
+class TodoistProjectData:
     """
     Class used by the Task Device service object to hold all Todoist Tasks.
 
diff --git a/homeassistant/components/canary.py b/homeassistant/components/canary.py
index 4d0fbe617b2c04..04c33d83f3db88 100644
--- a/homeassistant/components/canary.py
+++ b/homeassistant/components/canary.py
@@ -65,7 +65,7 @@ def setup(hass, config):
     return True
 
 
-class CanaryData(object):
+class CanaryData:
     """Get the latest data and update the states."""
 
     def __init__(self, username, password, timeout):
diff --git a/homeassistant/components/climate/netatmo.py b/homeassistant/components/climate/netatmo.py
index a4b921037dbe4d..431834151fd1b7 100644
--- a/homeassistant/components/climate/netatmo.py
+++ b/homeassistant/components/climate/netatmo.py
@@ -140,7 +140,7 @@ def update(self):
         self._away = self._data.setpoint_mode == 'away'
 
 
-class ThermostatData(object):
+class ThermostatData:
     """Get the latest data from Netatmo."""
 
     def __init__(self, auth, device=None):
diff --git a/homeassistant/components/climate/zwave.py b/homeassistant/components/climate/zwave.py
index 52c544256b6768..b1dcacb56543f8 100644
--- a/homeassistant/components/climate/zwave.py
+++ b/homeassistant/components/climate/zwave.py
@@ -11,7 +11,7 @@
     SUPPORT_TARGET_TEMPERATURE, SUPPORT_FAN_MODE,
     SUPPORT_OPERATION_MODE, SUPPORT_SWING_MODE)
 from homeassistant.components.zwave import ZWaveDeviceEntity
-from homeassistant.components.zwave import async_setup_platform  # noqa # pylint: disable=unused-import
+from homeassistant.components.zwave import async_setup_platform  # noqa pylint: disable=unused-import
 from homeassistant.const import (
     STATE_OFF, TEMP_CELSIUS, TEMP_FAHRENHEIT, ATTR_TEMPERATURE)
 
diff --git a/homeassistant/components/coinbase.py b/homeassistant/components/coinbase.py
index c40bd99b542ad6..154320b4abd3a4 100644
--- a/homeassistant/components/coinbase.py
+++ b/homeassistant/components/coinbase.py
@@ -69,7 +69,7 @@ def setup(hass, config):
     return True
 
 
-class CoinbaseData(object):
+class CoinbaseData:
     """Get the latest data and update the states."""
 
     def __init__(self, api_key, api_secret):
diff --git a/homeassistant/components/comfoconnect.py b/homeassistant/components/comfoconnect.py
index 425ed6f9c9a5fb..69d88274f2965b 100644
--- a/homeassistant/components/comfoconnect.py
+++ b/homeassistant/components/comfoconnect.py
@@ -88,7 +88,7 @@ def _shutdown(_event):
     return True
 
 
-class ComfoConnectBridge(object):
+class ComfoConnectBridge:
     """Representation of a ComfoConnect bridge."""
 
     def __init__(self, hass, bridge, name, token, friendly_name, pin):
diff --git a/homeassistant/components/configurator.py b/homeassistant/components/configurator.py
index 2c159633a9b54c..56fb7b4247b092 100644
--- a/homeassistant/components/configurator.py
+++ b/homeassistant/components/configurator.py
@@ -128,7 +128,7 @@ def async_setup(hass, config):
     return True
 
 
-class Configurator(object):
+class Configurator:
     """The class to keep track of current configuration requests."""
 
     def __init__(self, hass):
diff --git a/homeassistant/components/cover/zwave.py b/homeassistant/components/cover/zwave.py
index c29c11c5b6bffb..d5de8863543bd1 100644
--- a/homeassistant/components/cover/zwave.py
+++ b/homeassistant/components/cover/zwave.py
@@ -11,7 +11,7 @@
     DOMAIN, SUPPORT_OPEN, SUPPORT_CLOSE, ATTR_POSITION)
 from homeassistant.components.zwave import ZWaveDeviceEntity
 from homeassistant.components import zwave
-from homeassistant.components.zwave import async_setup_platform  # noqa # pylint: disable=unused-import
+from homeassistant.components.zwave import async_setup_platform  # noqa pylint: disable=unused-import
 from homeassistant.components.zwave import workaround
 from homeassistant.components.cover import CoverDevice
 
diff --git a/homeassistant/components/daikin.py b/homeassistant/components/daikin.py
index 5808528ca5adf7..8983ecf82d8249 100644
--- a/homeassistant/components/daikin.py
+++ b/homeassistant/components/daikin.py
@@ -115,7 +115,7 @@ def daikin_api_setup(hass, host, name=None):
     return api
 
 
-class DaikinApi(object):
+class DaikinApi:
     """Keep the Daikin instance in one place and centralize the update."""
 
     def __init__(self, device, name):
diff --git a/homeassistant/components/deconz/__init__.py b/homeassistant/components/deconz/__init__.py
index 88174b9d61297b..414d4b0766c827 100644
--- a/homeassistant/components/deconz/__init__.py
+++ b/homeassistant/components/deconz/__init__.py
@@ -178,7 +178,7 @@ async def async_unload_entry(hass, config_entry):
     return True
 
 
-class DeconzEvent(object):
+class DeconzEvent:
     """When you want signals instead of entities.
 
     Stateless sensors such as remotes are expected to generate an event
diff --git a/homeassistant/components/device_tracker/__init__.py b/homeassistant/components/device_tracker/__init__.py
index b95a0a9d73b6f8..391f36ad623466 100644
--- a/homeassistant/components/device_tracker/__init__.py
+++ b/homeassistant/components/device_tracker/__init__.py
@@ -231,7 +231,7 @@ def async_see_service(call):
     return True
 
 
-class DeviceTracker(object):
+class DeviceTracker:
     """Representation of a device tracker."""
 
     def __init__(self, hass: HomeAssistantType, consider_home: timedelta,
@@ -577,7 +577,7 @@ def async_added_to_hass(self):
                         state.attributes[ATTR_LONGITUDE])
 
 
-class DeviceScanner(object):
+class DeviceScanner:
     """Device scanner object."""
 
     hass = None  # type: HomeAssistantType
diff --git a/homeassistant/components/device_tracker/automatic.py b/homeassistant/components/device_tracker/automatic.py
index 607f236f92052d..4fcc550d7dbd94 100644
--- a/homeassistant/components/device_tracker/automatic.py
+++ b/homeassistant/components/device_tracker/automatic.py
@@ -193,7 +193,7 @@ def get(self, request):  # pylint: disable=no-self-use
         return response
 
 
-class AutomaticData(object):
+class AutomaticData:
     """A class representing an Automatic cloud service connection."""
 
     def __init__(self, hass, client, session, devices, async_see):
diff --git a/homeassistant/components/device_tracker/bmw_connected_drive.py b/homeassistant/components/device_tracker/bmw_connected_drive.py
index f36afc622ee1b5..02a12653180705 100644
--- a/homeassistant/components/device_tracker/bmw_connected_drive.py
+++ b/homeassistant/components/device_tracker/bmw_connected_drive.py
@@ -27,7 +27,7 @@ def setup_scanner(hass, config, see, discovery_info=None):
     return True
 
 
-class BMWDeviceTracker(object):
+class BMWDeviceTracker:
     """BMW Connected Drive device tracker."""
 
     def __init__(self, see, vehicle):
diff --git a/homeassistant/components/device_tracker/freebox.py b/homeassistant/components/device_tracker/freebox.py
index b278c4219254f7..2cac81fd405d91 100644
--- a/homeassistant/components/device_tracker/freebox.py
+++ b/homeassistant/components/device_tracker/freebox.py
@@ -62,7 +62,7 @@ def _build_device(device_dict):
         device_dict['l3connectivities'][0]['addr'])
 
 
-class FreeboxDeviceScanner(object):
+class FreeboxDeviceScanner:
     """This class scans for devices connected to the Freebox."""
 
     def __init__(self, hass, config, async_see):
diff --git a/homeassistant/components/device_tracker/google_maps.py b/homeassistant/components/device_tracker/google_maps.py
index 5f06946fc446b8..d0669ab4967da8 100644
--- a/homeassistant/components/device_tracker/google_maps.py
+++ b/homeassistant/components/device_tracker/google_maps.py
@@ -42,7 +42,7 @@ def setup_scanner(hass, config: ConfigType, see, discovery_info=None):
     return scanner.success_init
 
 
-class GoogleMapsScanner(object):
+class GoogleMapsScanner:
     """Representation of an Google Maps location sharing account."""
 
     def __init__(self, hass, config: ConfigType, see) -> None:
diff --git a/homeassistant/components/device_tracker/ping.py b/homeassistant/components/device_tracker/ping.py
index 6a0cb18d55ec64..d09e1930d4f7ee 100644
--- a/homeassistant/components/device_tracker/ping.py
+++ b/homeassistant/components/device_tracker/ping.py
@@ -28,7 +28,7 @@
 })
 
 
-class Host(object):
+class Host:
     """Host object with ping detection."""
 
     def __init__(self, ip_address, dev_id, hass, config):
diff --git a/homeassistant/components/device_tracker/tesla.py b/homeassistant/components/device_tracker/tesla.py
index ba9bc8c2631a8f..c08ddb4047b6a7 100644
--- a/homeassistant/components/device_tracker/tesla.py
+++ b/homeassistant/components/device_tracker/tesla.py
@@ -23,7 +23,7 @@ def setup_scanner(hass, config, see, discovery_info=None):
     return True
 
 
-class TeslaDeviceTracker(object):
+class TeslaDeviceTracker:
     """A class representing a Tesla device."""
 
     def __init__(self, hass, config, see, tesla_devices):
diff --git a/homeassistant/components/device_tracker/tile.py b/homeassistant/components/device_tracker/tile.py
index 6df9f3c9974caa..526c1a4b47b64c 100644
--- a/homeassistant/components/device_tracker/tile.py
+++ b/homeassistant/components/device_tracker/tile.py
@@ -74,7 +74,7 @@ async def async_setup_scanner(hass, config, async_see, discovery_info=None):
     return await scanner.async_init()
 
 
-class TileScanner(object):
+class TileScanner:
     """Define an object to retrieve Tile data."""
 
     def __init__(self, client, hass, async_see, types, show_inactive):
diff --git a/homeassistant/components/device_tracker/trackr.py b/homeassistant/components/device_tracker/trackr.py
index 84fb449c070156..08d3a4c944588e 100644
--- a/homeassistant/components/device_tracker/trackr.py
+++ b/homeassistant/components/device_tracker/trackr.py
@@ -30,7 +30,7 @@ def setup_scanner(hass, config: dict, see, discovery_info=None):
     return True
 
 
-class TrackRDeviceScanner(object):
+class TrackRDeviceScanner:
     """A class representing a TrackR device."""
 
     def __init__(self, hass, config: dict, see) -> None:
diff --git a/homeassistant/components/dialogflow.py b/homeassistant/components/dialogflow.py
index 28b3a05e403cb1..0f275a7fe66e1f 100644
--- a/homeassistant/components/dialogflow.py
+++ b/homeassistant/components/dialogflow.py
@@ -119,7 +119,7 @@ async def async_handle_message(hass, message):
     return dialogflow_response.as_dict()
 
 
-class DialogflowResponse(object):
+class DialogflowResponse:
     """Help generating the response for Dialogflow."""
 
     def __init__(self, parameters):
diff --git a/homeassistant/components/digital_ocean.py b/homeassistant/components/digital_ocean.py
index a0f50842649446..c0c9d95586c4ab 100644
--- a/homeassistant/components/digital_ocean.py
+++ b/homeassistant/components/digital_ocean.py
@@ -65,7 +65,7 @@ def setup(hass, config):
     return True
 
 
-class DigitalOcean(object):
+class DigitalOcean:
     """Handle all communication with the Digital Ocean API."""
 
     def __init__(self, access_token):
diff --git a/homeassistant/components/ecobee.py b/homeassistant/components/ecobee.py
index 96f094b527dfdf..3829c2caebd46b 100644
--- a/homeassistant/components/ecobee.py
+++ b/homeassistant/components/ecobee.py
@@ -84,7 +84,7 @@ def setup_ecobee(hass, network, config):
     discovery.load_platform(hass, 'weather', DOMAIN, {}, config)
 
 
-class EcobeeData(object):
+class EcobeeData:
     """Get the latest data and update the states."""
 
     def __init__(self, config_file):
diff --git a/homeassistant/components/emulated_hue/__init__.py b/homeassistant/components/emulated_hue/__init__.py
index 36ce1c392f99ee..8a67b933b9f736 100644
--- a/homeassistant/components/emulated_hue/__init__.py
+++ b/homeassistant/components/emulated_hue/__init__.py
@@ -136,7 +136,7 @@ async def start_emulated_hue_bridge(event):
     return True
 
 
-class Config(object):
+class Config:
     """Hold configuration variables for the emulated hue bridge."""
 
     def __init__(self, hass, conf):
diff --git a/homeassistant/components/fan/zwave.py b/homeassistant/components/fan/zwave.py
index 364306ff8ddd2a..645cb033e13346 100644
--- a/homeassistant/components/fan/zwave.py
+++ b/homeassistant/components/fan/zwave.py
@@ -11,7 +11,7 @@
     DOMAIN, FanEntity, SPEED_OFF, SPEED_LOW, SPEED_MEDIUM, SPEED_HIGH,
     SUPPORT_SET_SPEED)
 from homeassistant.components import zwave
-from homeassistant.components.zwave import async_setup_platform  # noqa # pylint: disable=unused-import
+from homeassistant.components.zwave import async_setup_platform  # noqa pylint: disable=unused-import
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/feedreader.py b/homeassistant/components/feedreader.py
index 56f153517cfb2c..782fd8ac8ddce2 100644
--- a/homeassistant/components/feedreader.py
+++ b/homeassistant/components/feedreader.py
@@ -53,7 +53,7 @@ def setup(hass, config):
     return len(feeds) > 0
 
 
-class FeedManager(object):
+class FeedManager:
     """Abstraction over Feedparser module."""
 
     def __init__(self, url, scan_interval, max_entries, hass, storage):
@@ -170,7 +170,7 @@ def _publish_new_entries(self):
         self._firstrun = False
 
 
-class StoredData(object):
+class StoredData:
     """Abstraction over pickle data storage."""
 
     def __init__(self, data_file):
diff --git a/homeassistant/components/ffmpeg.py b/homeassistant/components/ffmpeg.py
index e083affe92bccd..9aaae16ee21e35 100644
--- a/homeassistant/components/ffmpeg.py
+++ b/homeassistant/components/ffmpeg.py
@@ -116,7 +116,7 @@ def async_service_handle(service):
     return True
 
 
-class FFmpegManager(object):
+class FFmpegManager:
     """Helper for ha-ffmpeg."""
 
     def __init__(self, hass, ffmpeg_bin, run_test):
diff --git a/homeassistant/components/gc100.py b/homeassistant/components/gc100.py
index 25bcb5b0f79f55..0d4b19da03009d 100644
--- a/homeassistant/components/gc100.py
+++ b/homeassistant/components/gc100.py
@@ -53,7 +53,7 @@ def cleanup_gc100(event):
     return True
 
 
-class GC100Device(object):
+class GC100Device:
     """The GC100 component."""
 
     def __init__(self, hass, gc_device):
diff --git a/homeassistant/components/google.py b/homeassistant/components/google.py
index fdbc3382072024..e37b3ba7ff7e57 100644
--- a/homeassistant/components/google.py
+++ b/homeassistant/components/google.py
@@ -231,7 +231,7 @@ def do_setup(hass, config):
     return True
 
 
-class GoogleCalendarService(object):
+class GoogleCalendarService:
     """Calendar service interface to Google."""
 
     def __init__(self, token_file):
diff --git a/homeassistant/components/hassio/handler.py b/homeassistant/components/hassio/handler.py
index c3caf40ba62a70..5410cb9ec1a419 100644
--- a/homeassistant/components/hassio/handler.py
+++ b/homeassistant/components/hassio/handler.py
@@ -45,7 +45,7 @@ def _wrapper(*argv, **kwargs):
     return _wrapper
 
 
-class HassIO(object):
+class HassIO:
     """Small API wrapper for Hass.io."""
 
     def __init__(self, loop, websession, ip):
diff --git a/homeassistant/components/history.py b/homeassistant/components/history.py
index 7ee1c70487fe1d..21d4cdc6e56087 100644
--- a/homeassistant/components/history.py
+++ b/homeassistant/components/history.py
@@ -353,7 +353,7 @@ async def get(self, request, datetime=None):
         return await hass.async_add_job(self.json, result)
 
 
-class Filters(object):
+class Filters:
     """Container for the configured include and exclude filters."""
 
     def __init__(self):
diff --git a/homeassistant/components/homematicip_cloud/hap.py b/homeassistant/components/homematicip_cloud/hap.py
index a4e3e78e860805..57bb9488ee83fb 100644
--- a/homeassistant/components/homematicip_cloud/hap.py
+++ b/homeassistant/components/homematicip_cloud/hap.py
@@ -14,7 +14,7 @@
 _LOGGER = logging.getLogger(__name__)
 
 
-class HomematicipAuth(object):
+class HomematicipAuth:
     """Manages HomematicIP client registration."""
 
     def __init__(self, hass, config):
@@ -73,7 +73,7 @@ async def get_auth(self, hass, hapid, pin):
         return auth
 
 
-class HomematicipHAP(object):
+class HomematicipHAP:
     """Manages HomematicIP http and websocket connection."""
 
     def __init__(self, hass, config_entry):
diff --git a/homeassistant/components/http/__init__.py b/homeassistant/components/http/__init__.py
index 0cbee628a8a9c7..42629f752ad145 100644
--- a/homeassistant/components/http/__init__.py
+++ b/homeassistant/components/http/__init__.py
@@ -152,7 +152,7 @@ async def start_server(event):
     return True
 
 
-class HomeAssistantHTTP(object):
+class HomeAssistantHTTP:
     """HTTP server for Home Assistant."""
 
     def __init__(self, hass, api_password,
diff --git a/homeassistant/components/http/ban.py b/homeassistant/components/http/ban.py
index fe8b7db84d1b95..7bb5194b1ec4a0 100644
--- a/homeassistant/components/http/ban.py
+++ b/homeassistant/components/http/ban.py
@@ -107,7 +107,7 @@ async def process_wrong_login(request):
             'Banning IP address', NOTIFICATION_ID_BAN)
 
 
-class IpBan(object):
+class IpBan:
     """Represents banned IP address."""
 
     def __init__(self, ip_ban: str, banned_at: datetime = None) -> None:
diff --git a/homeassistant/components/http/view.py b/homeassistant/components/http/view.py
index 23698af810139a..34b72e9ed69fb3 100644
--- a/homeassistant/components/http/view.py
+++ b/homeassistant/components/http/view.py
@@ -21,7 +21,7 @@
 _LOGGER = logging.getLogger(__name__)
 
 
-class HomeAssistantView(object):
+class HomeAssistantView:
     """Base view for all views."""
 
     url = None
diff --git a/homeassistant/components/hue/bridge.py b/homeassistant/components/hue/bridge.py
index 8710b2561b0580..f528de462efec6 100644
--- a/homeassistant/components/hue/bridge.py
+++ b/homeassistant/components/hue/bridge.py
@@ -19,7 +19,7 @@
 })
 
 
-class HueBridge(object):
+class HueBridge:
     """Manages a single Hue bridge."""
 
     def __init__(self, hass, config_entry, allow_unreachable, allow_groups):
diff --git a/homeassistant/components/hydrawise.py b/homeassistant/components/hydrawise.py
index a60e3d5b8fc983..0c4db63034ea56 100644
--- a/homeassistant/components/hydrawise.py
+++ b/homeassistant/components/hydrawise.py
@@ -101,7 +101,7 @@ def hub_refresh(event_time):
     return True
 
 
-class HydrawiseHub(object):
+class HydrawiseHub:
     """Representation of a base Hydrawise device."""
 
     def __init__(self, data):
diff --git a/homeassistant/components/insteon_plm/__init__.py b/homeassistant/components/insteon_plm/__init__.py
index ef631223894b08..7845b47e218940 100644
--- a/homeassistant/components/insteon_plm/__init__.py
+++ b/homeassistant/components/insteon_plm/__init__.py
@@ -316,7 +316,7 @@ def _fire_button_on_off_event(address, group, val):
 State = collections.namedtuple('Product', 'stateType platform')
 
 
-class IPDB(object):
+class IPDB:
     """Embodies the INSTEON Product Database static data and access methods."""
 
     def __init__(self):
diff --git a/homeassistant/components/keyboard_remote.py b/homeassistant/components/keyboard_remote.py
index bbd7bc4408235f..9a7cc7caecbf9b 100644
--- a/homeassistant/components/keyboard_remote.py
+++ b/homeassistant/components/keyboard_remote.py
@@ -163,7 +163,7 @@ def run(self):
                 )
 
 
-class KeyboardRemote(object):
+class KeyboardRemote:
     """Sets up one thread per device."""
 
     def __init__(self, hass, config):
diff --git a/homeassistant/components/knx.py b/homeassistant/components/knx.py
index 61f8ca90137f58..f8db21118ecda4 100644
--- a/homeassistant/components/knx.py
+++ b/homeassistant/components/knx.py
@@ -129,7 +129,7 @@ def _get_devices(hass, discovery_type):
                 hass.data[DATA_KNX].xknx.devices)))
 
 
-class KNXModule(object):
+class KNXModule:
     """Representation of KNX Object."""
 
     def __init__(self, hass, config):
@@ -284,7 +284,7 @@ def __init__(self, hass, device, hook, action, counter=1):
         device.actions.append(self.action)
 
 
-class KNXExposeTime(object):
+class KNXExposeTime:
     """Object to Expose Time/Date object to KNX bus."""
 
     def __init__(self, xknx, expose_type, address):
@@ -308,7 +308,7 @@ def async_register(self):
         self.xknx.devices.add(self.device)
 
 
-class KNXExposeSensor(object):
+class KNXExposeSensor:
     """Object to Expose HASS entity to KNX bus."""
 
     def __init__(self, hass, xknx, expose_type, entity_id, address):
diff --git a/homeassistant/components/konnected.py b/homeassistant/components/konnected.py
index 26fe356d77247f..a3e9ff86ed012a 100644
--- a/homeassistant/components/konnected.py
+++ b/homeassistant/components/konnected.py
@@ -114,7 +114,7 @@ def device_discovered(service, info):
     return True
 
 
-class KonnectedDevice(object):
+class KonnectedDevice:
     """A representation of a single Konnected device."""
 
     def __init__(self, hass, host, port, config):
diff --git a/homeassistant/components/light/greenwave.py b/homeassistant/components/light/greenwave.py
index 8e9d93657cef2f..52a70532005dcf 100644
--- a/homeassistant/components/light/greenwave.py
+++ b/homeassistant/components/light/greenwave.py
@@ -121,7 +121,7 @@ def update(self):
         self._name = bulbs[self._did]['name']
 
 
-class GatewayData(object):
+class GatewayData:
     """Handle Gateway data and limit updates."""
 
     def __init__(self, host, token):
diff --git a/homeassistant/components/light/lifx.py b/homeassistant/components/light/lifx.py
index 9b2c183c1d1a87..3738fd8f00413b 100644
--- a/homeassistant/components/light/lifx.py
+++ b/homeassistant/components/light/lifx.py
@@ -204,7 +204,7 @@ def merge_hsbk(base, change):
     return [b if c is None else c for b, c in zip(base, change)]
 
 
-class LIFXManager(object):
+class LIFXManager:
     """Representation of all known LIFX entities."""
 
     def __init__(self, hass, async_add_devices):
diff --git a/homeassistant/components/light/lifx_legacy.py b/homeassistant/components/light/lifx_legacy.py
index 182d7536dc4544..3ad75a1cea4c57 100644
--- a/homeassistant/components/light/lifx_legacy.py
+++ b/homeassistant/components/light/lifx_legacy.py
@@ -58,7 +58,7 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
     lifx_library.probe()
 
 
-class LIFX(object):
+class LIFX:
     """Representation of a LIFX light."""
 
     def __init__(self, add_devices_callback, server_addr=None,
diff --git a/homeassistant/components/light/zwave.py b/homeassistant/components/light/zwave.py
index f468e8c25ef1ee..55feef496f8bf4 100644
--- a/homeassistant/components/light/zwave.py
+++ b/homeassistant/components/light/zwave.py
@@ -12,7 +12,7 @@
     ATTR_TRANSITION, SUPPORT_BRIGHTNESS, SUPPORT_COLOR_TEMP, SUPPORT_COLOR,
     SUPPORT_TRANSITION, SUPPORT_WHITE_VALUE, DOMAIN, Light)
 from homeassistant.components import zwave
-from homeassistant.components.zwave import async_setup_platform  # noqa # pylint: disable=unused-import
+from homeassistant.components.zwave import async_setup_platform  # noqa pylint: disable=unused-import
 from homeassistant.const import STATE_OFF, STATE_ON
 import homeassistant.util.color as color_util
 
diff --git a/homeassistant/components/linode.py b/homeassistant/components/linode.py
index 962e30774b81e9..c98ef16c7ed667 100644
--- a/homeassistant/components/linode.py
+++ b/homeassistant/components/linode.py
@@ -62,7 +62,7 @@ def setup(hass, config):
     return True
 
 
-class Linode(object):
+class Linode:
     """Handle all communication with the Linode API."""
 
     def __init__(self, access_token):
diff --git a/homeassistant/components/logbook.py b/homeassistant/components/logbook.py
index eb2e83912210c8..b9970e3466e8fd 100644
--- a/homeassistant/components/logbook.py
+++ b/homeassistant/components/logbook.py
@@ -140,7 +140,7 @@ def json_events():
         return await hass.async_add_job(json_events)
 
 
-class Entry(object):
+class Entry:
     """A human readable version of the log."""
 
     def __init__(self, when=None, name=None, message=None, domain=None,
diff --git a/homeassistant/components/mailbox/__init__.py b/homeassistant/components/mailbox/__init__.py
index 8ff3746889e42e..6a648e4dc47774 100644
--- a/homeassistant/components/mailbox/__init__.py
+++ b/homeassistant/components/mailbox/__init__.py
@@ -132,7 +132,7 @@ def async_update(self):
         self.message_count = len(messages)
 
 
-class Mailbox(object):
+class Mailbox:
     """Represent a mailbox device."""
 
     def __init__(self, hass, name):
diff --git a/homeassistant/components/matrix.py b/homeassistant/components/matrix.py
index b2805c994e8739..5f6c30aaeba5f5 100644
--- a/homeassistant/components/matrix.py
+++ b/homeassistant/components/matrix.py
@@ -96,7 +96,7 @@ def setup(hass, config):
     return True
 
 
-class MatrixBot(object):
+class MatrixBot:
     """The Matrix Bot."""
 
     def __init__(self, hass, config_file, homeserver, verify_ssl,
diff --git a/homeassistant/components/maxcube.py b/homeassistant/components/maxcube.py
index bca7a1b4ab7eca..b574f0bcb152b8 100644
--- a/homeassistant/components/maxcube.py
+++ b/homeassistant/components/maxcube.py
@@ -79,7 +79,7 @@ def setup(hass, config):
     return True
 
 
-class MaxCubeHandle(object):
+class MaxCubeHandle:
     """Keep the cube instance in one place and centralize the update."""
 
     def __init__(self, cube, scan_interval):
diff --git a/homeassistant/components/media_extractor.py b/homeassistant/components/media_extractor.py
index 21accdf84b3a2d..2ecee06d8a394f 100644
--- a/homeassistant/components/media_extractor.py
+++ b/homeassistant/components/media_extractor.py
@@ -58,7 +58,7 @@ class MEQueryException(Exception):
     pass
 
 
-class MediaExtractor(object):
+class MediaExtractor:
     """Class which encapsulates all extraction logic."""
 
     def __init__(self, hass, component_config, call_data):
diff --git a/homeassistant/components/media_player/cast.py b/homeassistant/components/media_player/cast.py
index 4e24d5f2f713b8..32ceadf248fe38 100644
--- a/homeassistant/components/media_player/cast.py
+++ b/homeassistant/components/media_player/cast.py
@@ -63,7 +63,7 @@
 
 
 @attr.s(slots=True, frozen=True)
-class ChromecastInfo(object):
+class ChromecastInfo:
     """Class to hold all data about a chromecast for creating connections.
 
     This also has the same attributes as the mDNS fields by zeroconf.
@@ -258,7 +258,7 @@ def async_cast_discovered(discover: ChromecastInfo) -> None:
         hass.async_add_job(_discover_chromecast, hass, info)
 
 
-class CastStatusListener(object):
+class CastStatusListener:
     """Helper class to handle pychromecast status callbacks.
 
     Necessary because a CastDevice entity can create a new socket client
diff --git a/homeassistant/components/media_player/firetv.py b/homeassistant/components/media_player/firetv.py
index 280a84f0828eed..979aec57c74a49 100644
--- a/homeassistant/components/media_player/firetv.py
+++ b/homeassistant/components/media_player/firetv.py
@@ -68,7 +68,7 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
         _LOGGER.error("Could not connect to firetv-server at %s", host)
 
 
-class FireTV(object):
+class FireTV:
     """The firetv-server client.
 
     Should a native Python 3 ADB module become available, python-firetv can
diff --git a/homeassistant/components/media_player/itunes.py b/homeassistant/components/media_player/itunes.py
index ca0979f1752d80..e5f7a2f9432d66 100644
--- a/homeassistant/components/media_player/itunes.py
+++ b/homeassistant/components/media_player/itunes.py
@@ -41,7 +41,7 @@
 })
 
 
-class Itunes(object):
+class Itunes:
     """The iTunes API client."""
 
     def __init__(self, host, port, use_ssl):
diff --git a/homeassistant/components/media_player/squeezebox.py b/homeassistant/components/media_player/squeezebox.py
index 371ad89036414a..8eb4c85f6b27bf 100644
--- a/homeassistant/components/media_player/squeezebox.py
+++ b/homeassistant/components/media_player/squeezebox.py
@@ -143,7 +143,7 @@ def async_service_handler(service):
     return True
 
 
-class LogitechMediaServer(object):
+class LogitechMediaServer:
     """Representation of a Logitech media server."""
 
     def __init__(self, hass, host, port, username, password):
diff --git a/homeassistant/components/microsoft_face.py b/homeassistant/components/microsoft_face.py
index 847f4131f4334f..e0e0e716d2e87e 100644
--- a/homeassistant/components/microsoft_face.py
+++ b/homeassistant/components/microsoft_face.py
@@ -289,7 +289,7 @@ def device_state_attributes(self):
         return attr
 
 
-class MicrosoftFace(object):
+class MicrosoftFace:
     """Microsoft Face api for HomeAssistant."""
 
     def __init__(self, hass, server_loc, api_key, timeout, entities):
diff --git a/homeassistant/components/mochad.py b/homeassistant/components/mochad.py
index 9f53f84e020a7c..7e6738b95f8c23 100644
--- a/homeassistant/components/mochad.py
+++ b/homeassistant/components/mochad.py
@@ -61,7 +61,7 @@ def start_mochad(event):
     return True
 
 
-class MochadCtrl(object):
+class MochadCtrl:
     """Mochad controller."""
 
     def __init__(self, host, port):
diff --git a/homeassistant/components/modbus.py b/homeassistant/components/modbus.py
index fc6db96e029b03..f484cb31a6c9e6 100644
--- a/homeassistant/components/modbus.py
+++ b/homeassistant/components/modbus.py
@@ -157,7 +157,7 @@ def write_coil(service):
     return True
 
 
-class ModbusHub(object):
+class ModbusHub:
     """Thread safe wrapper class for pymodbus."""
 
     def __init__(self, modbus_client):
diff --git a/homeassistant/components/mqtt/__init__.py b/homeassistant/components/mqtt/__init__.py
index 55d99a0817e1fe..3928eb945aa105 100644
--- a/homeassistant/components/mqtt/__init__.py
+++ b/homeassistant/components/mqtt/__init__.py
@@ -462,7 +462,7 @@ async def async_publish_service(call: ServiceCall):
 
 
 @attr.s(slots=True, frozen=True)
-class Subscription(object):
+class Subscription:
     """Class to hold data about an active subscription."""
 
     topic = attr.ib(type=str)
@@ -472,7 +472,7 @@ class Subscription(object):
 
 
 @attr.s(slots=True, frozen=True)
-class Message(object):
+class Message:
     """MQTT Message."""
 
     topic = attr.ib(type=str)
@@ -481,7 +481,7 @@ class Message(object):
     retain = attr.ib(type=bool, default=False)
 
 
-class MQTT(object):
+class MQTT:
     """Home Assistant MQTT client."""
 
     def __init__(self, hass: HomeAssistantType, broker: str, port: int,
diff --git a/homeassistant/components/mychevy.py b/homeassistant/components/mychevy.py
index 3531c6b4919da7..292e56418fc104 100644
--- a/homeassistant/components/mychevy.py
+++ b/homeassistant/components/mychevy.py
@@ -41,7 +41,7 @@
 }, extra=vol.ALLOW_EXTRA)
 
 
-class EVSensorConfig(object):
+class EVSensorConfig:
     """The EV sensor configuration."""
 
     def __init__(self, name, attr, unit_of_measurement=None, icon=None):
@@ -52,7 +52,7 @@ def __init__(self, name, attr, unit_of_measurement=None, icon=None):
         self.icon = icon
 
 
-class EVBinarySensorConfig(object):
+class EVBinarySensorConfig:
     """The EV binary sensor configuration."""
 
     def __init__(self, name, attr, device_class=None):
diff --git a/homeassistant/components/mysensors/device.py b/homeassistant/components/mysensors/device.py
index b0770f90c1db76..3ae99f61d17f79 100644
--- a/homeassistant/components/mysensors/device.py
+++ b/homeassistant/components/mysensors/device.py
@@ -25,7 +25,7 @@ def get_mysensors_devices(hass, domain):
     return hass.data[MYSENSORS_PLATFORM_DEVICES.format(domain)]
 
 
-class MySensorsDevice(object):
+class MySensorsDevice:
     """Representation of a MySensors device."""
 
     def __init__(self, gateway, node_id, child_id, name, value_type):
diff --git a/homeassistant/components/neato.py b/homeassistant/components/neato.py
index 63b0f61bb7cec6..6eabfc713bc15e 100644
--- a/homeassistant/components/neato.py
+++ b/homeassistant/components/neato.py
@@ -118,7 +118,7 @@ def setup(hass, config):
     return True
 
 
-class NeatoHub(object):
+class NeatoHub:
     """A My Neato hub wrapper class."""
 
     def __init__(self, hass, domain_config, neato):
diff --git a/homeassistant/components/nest/__init__.py b/homeassistant/components/nest/__init__.py
index 58fa1953ef0d4c..23a331b21b2dfc 100644
--- a/homeassistant/components/nest/__init__.py
+++ b/homeassistant/components/nest/__init__.py
@@ -183,7 +183,7 @@ def shut_down(event):
     return True
 
 
-class NestDevice(object):
+class NestDevice:
     """Structure Nest functions for hass."""
 
     def __init__(self, hass, conf, nest):
diff --git a/homeassistant/components/netatmo.py b/homeassistant/components/netatmo.py
index b1c7a650843aea..c25b57fbd627ff 100644
--- a/homeassistant/components/netatmo.py
+++ b/homeassistant/components/netatmo.py
@@ -64,7 +64,7 @@ def setup(hass, config):
     return True
 
 
-class CameraData(object):
+class CameraData:
     """Get the latest data from Netatmo."""
 
     def __init__(self, auth, home=None):
diff --git a/homeassistant/components/notify/__init__.py b/homeassistant/components/notify/__init__.py
index 41198d1f296425..13cd6203ed4bfb 100644
--- a/homeassistant/components/notify/__init__.py
+++ b/homeassistant/components/notify/__init__.py
@@ -174,7 +174,7 @@ def async_platform_discovered(platform, info):
     return True
 
 
-class BaseNotificationService(object):
+class BaseNotificationService:
     """An abstract class for notification services."""
 
     hass = None
diff --git a/homeassistant/components/notify/apns.py b/homeassistant/components/notify/apns.py
index 9cca81e1485524..8fabfc3aefb505 100644
--- a/homeassistant/components/notify/apns.py
+++ b/homeassistant/components/notify/apns.py
@@ -56,7 +56,7 @@ def get_service(hass, config, discovery_info=None):
     return service
 
 
-class ApnsDevice(object):
+class ApnsDevice:
     """
     The APNS Device class.
 
diff --git a/homeassistant/components/nuimo_controller.py b/homeassistant/components/nuimo_controller.py
index e7ab86a5f35f07..0f8fbb3907316c 100644
--- a/homeassistant/components/nuimo_controller.py
+++ b/homeassistant/components/nuimo_controller.py
@@ -52,7 +52,7 @@ def setup(hass, config):
     return True
 
 
-class NuimoLogger(object):
+class NuimoLogger:
     """Handle Nuimo Controller event callbacks."""
 
     def __init__(self, hass, name):
@@ -167,7 +167,7 @@ def handle_write_matrix(call):
     ".........")
 
 
-class DiscoveryLogger(object):
+class DiscoveryLogger:
     """Handle Nuimo Discovery callbacks."""
 
     # pylint: disable=no-self-use
diff --git a/homeassistant/components/octoprint.py b/homeassistant/components/octoprint.py
index c1059227f7a722..bc936265f6ff6b 100644
--- a/homeassistant/components/octoprint.py
+++ b/homeassistant/components/octoprint.py
@@ -50,7 +50,7 @@ def setup(hass, config):
     return True
 
 
-class OctoPrintAPI(object):
+class OctoPrintAPI:
     """Simple JSON wrapper for OctoPrint's API."""
 
     def __init__(self, api_url, key, bed, number_of_tools):
diff --git a/homeassistant/components/pilight.py b/homeassistant/components/pilight.py
index 344c750c0ec741..d307a428e0e27d 100644
--- a/homeassistant/components/pilight.py
+++ b/homeassistant/components/pilight.py
@@ -118,7 +118,7 @@ def handle_received_code(data):
     return True
 
 
-class CallRateDelayThrottle(object):
+class CallRateDelayThrottle:
     """Helper class to provide service call rate throttling.
 
     This class provides a decorator to decorate service methods that need
diff --git a/homeassistant/components/plant.py b/homeassistant/components/plant.py
index 048851e97f5420..84dc8402742059 100644
--- a/homeassistant/components/plant.py
+++ b/homeassistant/components/plant.py
@@ -324,7 +324,7 @@ def state_attributes(self):
         return attrib
 
 
-class DailyHistory(object):
+class DailyHistory:
     """Stores one measurement per day for a maximum number of days.
 
     At the moment only the maximum value per day is kept.
diff --git a/homeassistant/components/prometheus.py b/homeassistant/components/prometheus.py
index 0a6c959f243d06..da986f024a4440 100644
--- a/homeassistant/components/prometheus.py
+++ b/homeassistant/components/prometheus.py
@@ -55,7 +55,7 @@ def setup(hass, config):
     return True
 
 
-class PrometheusMetrics(object):
+class PrometheusMetrics:
     """Model all of the metrics which should be exposed to Prometheus."""
 
     def __init__(self, prometheus_client, entity_filter, namespace):
diff --git a/homeassistant/components/rachio.py b/homeassistant/components/rachio.py
index 3a804c50c74a5a..90854efe8b1fbd 100644
--- a/homeassistant/components/rachio.py
+++ b/homeassistant/components/rachio.py
@@ -130,7 +130,7 @@ def setup(hass, config) -> bool:
     return True
 
 
-class RachioPerson(object):
+class RachioPerson:
     """Represent a Rachio user."""
 
     def __init__(self, hass, rachio):
@@ -162,7 +162,7 @@ def controllers(self) -> list:
         return self._controllers
 
 
-class RachioIro(object):
+class RachioIro:
     """Represent a Rachio Iro."""
 
     def __init__(self, hass, rachio, data):
diff --git a/homeassistant/components/raincloud.py b/homeassistant/components/raincloud.py
index a04f4926b76ebb..53cd8e79d7e646 100644
--- a/homeassistant/components/raincloud.py
+++ b/homeassistant/components/raincloud.py
@@ -124,7 +124,7 @@ def hub_refresh(event_time):
     return True
 
 
-class RainCloudHub(object):
+class RainCloudHub:
     """Representation of a base RainCloud device."""
 
     def __init__(self, data):
diff --git a/homeassistant/components/rainmachine/__init__.py b/homeassistant/components/rainmachine/__init__.py
index 22fc427ccce969..b6546f2e67b72a 100644
--- a/homeassistant/components/rainmachine/__init__.py
+++ b/homeassistant/components/rainmachine/__init__.py
@@ -201,7 +201,7 @@ async def stop_zone(service):
     return True
 
 
-class RainMachine(object):
+class RainMachine:
     """Define a generic RainMachine object."""
 
     def __init__(self, client):
diff --git a/homeassistant/components/raspihats.py b/homeassistant/components/raspihats.py
index 41480c09a32352..f43263bf4bf428 100644
--- a/homeassistant/components/raspihats.py
+++ b/homeassistant/components/raspihats.py
@@ -63,7 +63,7 @@ class I2CHatsException(Exception):
     """I2C-HATs exception."""
 
 
-class I2CHatsDIScanner(object):
+class I2CHatsDIScanner:
     """Scan Digital Inputs and fire callbacks."""
 
     _DIGITAL_INPUTS = "di"
diff --git a/homeassistant/components/remember_the_milk/__init__.py b/homeassistant/components/remember_the_milk/__init__.py
index 98cd937de3cca7..a94e8e95c6f6d2 100644
--- a/homeassistant/components/remember_the_milk/__init__.py
+++ b/homeassistant/components/remember_the_milk/__init__.py
@@ -138,7 +138,7 @@ def register_account_callback(_):
     )
 
 
-class RememberTheMilkConfiguration(object):
+class RememberTheMilkConfiguration:
     """Internal configuration data for RememberTheMilk class.
 
     This class stores the authentication token it get from the backend.
diff --git a/homeassistant/components/scsgate.py b/homeassistant/components/scsgate.py
index a7193b4094903d..dcea69cbb48dba 100644
--- a/homeassistant/components/scsgate.py
+++ b/homeassistant/components/scsgate.py
@@ -60,7 +60,7 @@ def stop_monitor(event):
     return True
 
 
-class SCSGate(object):
+class SCSGate:
     """The class for dealing with the SCSGate device via scsgate.Reactor."""
 
     def __init__(self, device, logger):
diff --git a/homeassistant/components/sensor/airvisual.py b/homeassistant/components/sensor/airvisual.py
index 0002274833ff20..403722c7b6ad26 100644
--- a/homeassistant/components/sensor/airvisual.py
+++ b/homeassistant/components/sensor/airvisual.py
@@ -248,7 +248,7 @@ async def async_update(self):
             })
 
 
-class AirVisualData(object):
+class AirVisualData:
     """Define an object to hold sensor data."""
 
     def __init__(self, client, **kwargs):
diff --git a/homeassistant/components/sensor/arest.py b/homeassistant/components/sensor/arest.py
index 19860ba84fd126..751f0f11171cdb 100644
--- a/homeassistant/components/sensor/arest.py
+++ b/homeassistant/components/sensor/arest.py
@@ -158,7 +158,7 @@ def available(self):
         return self.arest.available
 
 
-class ArestData(object):
+class ArestData:
     """The Class for handling the data retrieval for variables."""
 
     def __init__(self, resource, pin=None):
diff --git a/homeassistant/components/sensor/bbox.py b/homeassistant/components/sensor/bbox.py
index 3689e94b05dc51..d24621becc9794 100644
--- a/homeassistant/components/sensor/bbox.py
+++ b/homeassistant/components/sensor/bbox.py
@@ -125,7 +125,7 @@ def update(self):
                                 2)
 
 
-class BboxData(object):
+class BboxData:
     """Get data from the Bbox."""
 
     def __init__(self):
diff --git a/homeassistant/components/sensor/bitcoin.py b/homeassistant/components/sensor/bitcoin.py
index bd23b9850f773f..f51b7dcd5bde40 100644
--- a/homeassistant/components/sensor/bitcoin.py
+++ b/homeassistant/components/sensor/bitcoin.py
@@ -169,7 +169,7 @@ def update(self):
             self._state = '{0:.2f}'.format(stats.market_price_usd)
 
 
-class BitcoinData(object):
+class BitcoinData:
     """Get the latest data and update the states."""
 
     def __init__(self):
diff --git a/homeassistant/components/sensor/bom.py b/homeassistant/components/sensor/bom.py
index 5cec528d26a087..eb63e1162541ad 100644
--- a/homeassistant/components/sensor/bom.py
+++ b/homeassistant/components/sensor/bom.py
@@ -180,7 +180,7 @@ def update(self):
         self.bom_data.update()
 
 
-class BOMCurrentData(object):
+class BOMCurrentData:
     """Get data from BOM."""
 
     def __init__(self, hass, station_id):
diff --git a/homeassistant/components/sensor/broadlink.py b/homeassistant/components/sensor/broadlink.py
index 8806fae5974f77..06d7f512c9feb1 100644
--- a/homeassistant/components/sensor/broadlink.py
+++ b/homeassistant/components/sensor/broadlink.py
@@ -96,7 +96,7 @@ def update(self):
         self._state = self._broadlink_data.data[self._type]
 
 
-class BroadlinkData(object):
+class BroadlinkData:
     """Representation of a Broadlink data object."""
 
     def __init__(self, interval, ip_addr, mac_addr, timeout):
diff --git a/homeassistant/components/sensor/buienradar.py b/homeassistant/components/sensor/buienradar.py
index 10a96ded43739e..e366a83a65d6b6 100644
--- a/homeassistant/components/sensor/buienradar.py
+++ b/homeassistant/components/sensor/buienradar.py
@@ -374,7 +374,7 @@ def force_update(self):
         return self._force_update
 
 
-class BrData(object):
+class BrData:
     """Get the latest data and updates the states."""
 
     def __init__(self, hass, coordinates, timeframe, devices):
diff --git a/homeassistant/components/sensor/coinmarketcap.py b/homeassistant/components/sensor/coinmarketcap.py
index f4b666f1e5cc99..c4f38b1be02d85 100644
--- a/homeassistant/components/sensor/coinmarketcap.py
+++ b/homeassistant/components/sensor/coinmarketcap.py
@@ -140,7 +140,7 @@ def update(self):
         self._ticker = self.data.ticker.get('data')
 
 
-class CoinMarketCapData(object):
+class CoinMarketCapData:
     """Get the latest data and update the states."""
 
     def __init__(self, currency_id, display_currency):
diff --git a/homeassistant/components/sensor/command_line.py b/homeassistant/components/sensor/command_line.py
index 2003b1b41c94af..1db7c58d32811d 100644
--- a/homeassistant/components/sensor/command_line.py
+++ b/homeassistant/components/sensor/command_line.py
@@ -95,7 +95,7 @@ def update(self):
             self._state = value
 
 
-class CommandSensorData(object):
+class CommandSensorData:
     """The class for handling the data retrieval."""
 
     def __init__(self, hass, command, command_timeout):
diff --git a/homeassistant/components/sensor/cups.py b/homeassistant/components/sensor/cups.py
index 6d55853d724221..846b109afca9e5 100644
--- a/homeassistant/components/sensor/cups.py
+++ b/homeassistant/components/sensor/cups.py
@@ -129,7 +129,7 @@ def update(self):
 
 
 # pylint: disable=no-name-in-module
-class CupsData(object):
+class CupsData:
     """Get the latest data from CUPS and update the state."""
 
     def __init__(self, host, port):
diff --git a/homeassistant/components/sensor/currencylayer.py b/homeassistant/components/sensor/currencylayer.py
index f5d6f278da0b12..0834bbc99d8501 100644
--- a/homeassistant/components/sensor/currencylayer.py
+++ b/homeassistant/components/sensor/currencylayer.py
@@ -104,7 +104,7 @@ def update(self):
                 value['{}{}'.format(self._base, self._quote)], 4)
 
 
-class CurrencylayerData(object):
+class CurrencylayerData:
     """Get data from Currencylayer.org."""
 
     def __init__(self, resource, parameters):
diff --git a/homeassistant/components/sensor/darksky.py b/homeassistant/components/sensor/darksky.py
index e75f36d59f718d..2e57e1bd447543 100644
--- a/homeassistant/components/sensor/darksky.py
+++ b/homeassistant/components/sensor/darksky.py
@@ -372,7 +372,7 @@ def convert_to_camel(data):
     return components[0] + "".join(x.title() for x in components[1:])
 
 
-class DarkSkyData(object):
+class DarkSkyData:
     """Get the latest data from Darksky."""
 
     def __init__(self, api_key, latitude, longitude, units, language,
diff --git a/homeassistant/components/sensor/deutsche_bahn.py b/homeassistant/components/sensor/deutsche_bahn.py
index ec9b14883a9d44..0e6ab164d4f73a 100644
--- a/homeassistant/components/sensor/deutsche_bahn.py
+++ b/homeassistant/components/sensor/deutsche_bahn.py
@@ -85,7 +85,7 @@ def update(self):
             self._state += " + {}".format(self.data.connections[0]['delay'])
 
 
-class SchieneData(object):
+class SchieneData:
     """Pull data from the bahn.de web page."""
 
     def __init__(self, start, goal, only_direct):
diff --git a/homeassistant/components/sensor/dht.py b/homeassistant/components/sensor/dht.py
index c5c26bc5ffa01e..6770594b919961 100644
--- a/homeassistant/components/sensor/dht.py
+++ b/homeassistant/components/sensor/dht.py
@@ -140,7 +140,7 @@ def update(self):
                 self._state = round(humidity + humidity_offset, 1)
 
 
-class DHTClient(object):
+class DHTClient:
     """Get the latest data from the DHT sensor."""
 
     def __init__(self, adafruit_dht, sensor, pin):
diff --git a/homeassistant/components/sensor/dublin_bus_transport.py b/homeassistant/components/sensor/dublin_bus_transport.py
index f6d791f9fd623c..a443c78b2b1725 100644
--- a/homeassistant/components/sensor/dublin_bus_transport.py
+++ b/homeassistant/components/sensor/dublin_bus_transport.py
@@ -125,7 +125,7 @@ def update(self):
             pass
 
 
-class PublicTransportData(object):
+class PublicTransportData:
     """The Class for handling the data retrieval."""
 
     def __init__(self, stop, route):
diff --git a/homeassistant/components/sensor/dwd_weather_warnings.py b/homeassistant/components/sensor/dwd_weather_warnings.py
index e023dfcc49ff09..4f9664617a31d2 100644
--- a/homeassistant/components/sensor/dwd_weather_warnings.py
+++ b/homeassistant/components/sensor/dwd_weather_warnings.py
@@ -163,7 +163,7 @@ def update(self):
         self._api.update()
 
 
-class DwdWeatherWarningsAPI(object):
+class DwdWeatherWarningsAPI:
     """Get the latest data and update the states."""
 
     def __init__(self, region_name):
diff --git a/homeassistant/components/sensor/dweet.py b/homeassistant/components/sensor/dweet.py
index cca06bd9782d33..065c88d8332b45 100644
--- a/homeassistant/components/sensor/dweet.py
+++ b/homeassistant/components/sensor/dweet.py
@@ -99,7 +99,7 @@ def update(self):
                 values, STATE_UNKNOWN)
 
 
-class DweetData(object):
+class DweetData:
     """The class for handling the data retrieval."""
 
     def __init__(self, device):
diff --git a/homeassistant/components/sensor/ebox.py b/homeassistant/components/sensor/ebox.py
index d7b867081a3a27..218968ecee8c09 100644
--- a/homeassistant/components/sensor/ebox.py
+++ b/homeassistant/components/sensor/ebox.py
@@ -129,7 +129,7 @@ async def async_update(self):
             self._state = round(self.ebox_data.data[self.type], 2)
 
 
-class EBoxData(object):
+class EBoxData:
     """Get data from Ebox."""
 
     def __init__(self, username, password, httpsession):
diff --git a/homeassistant/components/sensor/eddystone_temperature.py b/homeassistant/components/sensor/eddystone_temperature.py
index 978b8db669ac77..4c209d17d07d38 100644
--- a/homeassistant/components/sensor/eddystone_temperature.py
+++ b/homeassistant/components/sensor/eddystone_temperature.py
@@ -120,7 +120,7 @@ def should_poll(self):
         return False
 
 
-class Monitor(object):
+class Monitor:
     """Continuously scan for BLE advertisements."""
 
     def __init__(self, hass, devices, bt_device_id):
diff --git a/homeassistant/components/sensor/emoncms.py b/homeassistant/components/sensor/emoncms.py
index cd02137f4d5334..a62eaba7df8459 100644
--- a/homeassistant/components/sensor/emoncms.py
+++ b/homeassistant/components/sensor/emoncms.py
@@ -190,7 +190,7 @@ def update(self):
             self._state = round(float(elem["value"]), DECIMALS)
 
 
-class EmonCmsData(object):
+class EmonCmsData:
     """The class for handling the data retrieval."""
 
     def __init__(self, hass, url, apikey, interval):
diff --git a/homeassistant/components/sensor/envirophat.py b/homeassistant/components/sensor/envirophat.py
index 265350f3e95104..bf4ee55c446ba4 100644
--- a/homeassistant/components/sensor/envirophat.py
+++ b/homeassistant/components/sensor/envirophat.py
@@ -138,7 +138,7 @@ def update(self):
             self._state = self.data.voltage_3
 
 
-class EnvirophatData(object):
+class EnvirophatData:
     """Get the latest data and update."""
 
     def __init__(self, envirophat, use_leds):
diff --git a/homeassistant/components/sensor/fail2ban.py b/homeassistant/components/sensor/fail2ban.py
index 87c301d34f5cd7..bf868d49201a08 100644
--- a/homeassistant/components/sensor/fail2ban.py
+++ b/homeassistant/components/sensor/fail2ban.py
@@ -112,7 +112,7 @@ def update(self):
             self.last_ban = 'None'
 
 
-class BanLogParser(object):
+class BanLogParser:
     """Class to parse fail2ban logs."""
 
     def __init__(self, interval, log_file):
diff --git a/homeassistant/components/sensor/fastdotcom.py b/homeassistant/components/sensor/fastdotcom.py
index 9143ccaf23fcc4..65474cd4bf66d3 100644
--- a/homeassistant/components/sensor/fastdotcom.py
+++ b/homeassistant/components/sensor/fastdotcom.py
@@ -102,7 +102,7 @@ def icon(self):
         return ICON
 
 
-class SpeedtestData(object):
+class SpeedtestData:
     """Get the latest data from fast.com."""
 
     def __init__(self, hass, config):
diff --git a/homeassistant/components/sensor/fido.py b/homeassistant/components/sensor/fido.py
index a2ee18b3659b42..4f724b5b851d6d 100644
--- a/homeassistant/components/sensor/fido.py
+++ b/homeassistant/components/sensor/fido.py
@@ -147,7 +147,7 @@ def async_update(self):
                 self._state = round(self._state, 2)
 
 
-class FidoData(object):
+class FidoData:
     """Get data from Fido."""
 
     def __init__(self, username, password, httpsession):
diff --git a/homeassistant/components/sensor/filter.py b/homeassistant/components/sensor/filter.py
index df913ab6d804cf..15059b08a179be 100644
--- a/homeassistant/components/sensor/filter.py
+++ b/homeassistant/components/sensor/filter.py
@@ -258,7 +258,7 @@ def device_state_attributes(self):
         return state_attr
 
 
-class FilterState(object):
+class FilterState:
     """State abstraction for filter usage."""
 
     def __init__(self, state):
@@ -283,7 +283,7 @@ def __repr__(self):
         return "{} : {}".format(self.timestamp, self.state)
 
 
-class Filter(object):
+class Filter:
     """Filter skeleton.
 
     Args:
diff --git a/homeassistant/components/sensor/fints.py b/homeassistant/components/sensor/fints.py
index 1312991913939a..ef064e842282e4 100644
--- a/homeassistant/components/sensor/fints.py
+++ b/homeassistant/components/sensor/fints.py
@@ -101,7 +101,7 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
     add_devices(accounts, True)
 
 
-class FinTsClient(object):
+class FinTsClient:
     """Wrapper around the FinTS3PinTanClient.
 
     Use this class as Context Manager to get the FinTS3Client object.
diff --git a/homeassistant/components/sensor/fixer.py b/homeassistant/components/sensor/fixer.py
index 438366ae5558e0..5a6f8da79b2246 100644
--- a/homeassistant/components/sensor/fixer.py
+++ b/homeassistant/components/sensor/fixer.py
@@ -102,7 +102,7 @@ def update(self):
         self._state = round(self.data.rate['rates'][self._target], 3)
 
 
-class ExchangeData(object):
+class ExchangeData:
     """Get the latest data and update the states."""
 
     def __init__(self, target_currency, api_key):
diff --git a/homeassistant/components/sensor/fritzbox_callmonitor.py b/homeassistant/components/sensor/fritzbox_callmonitor.py
index 304489f99b76fb..e42be861d378fa 100644
--- a/homeassistant/components/sensor/fritzbox_callmonitor.py
+++ b/homeassistant/components/sensor/fritzbox_callmonitor.py
@@ -143,7 +143,7 @@ def update(self):
             self.phonebook.update_phonebook()
 
 
-class FritzBoxCallMonitor(object):
+class FritzBoxCallMonitor:
     """Event listener to monitor calls on the Fritz!Box."""
 
     def __init__(self, host, port, sensor):
@@ -225,7 +225,7 @@ def _parse(self, line):
         self._sensor.schedule_update_ha_state()
 
 
-class FritzBoxPhonebook(object):
+class FritzBoxPhonebook:
     """This connects to a FritzBox router and downloads its phone book."""
 
     def __init__(self, host, port, username, password,
diff --git a/homeassistant/components/sensor/geizhals.py b/homeassistant/components/sensor/geizhals.py
index 94f3f1884d188f..9e32bf27c295df 100644
--- a/homeassistant/components/sensor/geizhals.py
+++ b/homeassistant/components/sensor/geizhals.py
@@ -98,7 +98,7 @@ def update(self):
         self._state = self.data.prices[0]
 
 
-class GeizParser(object):
+class GeizParser:
     """Pull data from the geizhals website."""
 
     def __init__(self, product_id, domain, regex):
diff --git a/homeassistant/components/sensor/geo_rss_events.py b/homeassistant/components/sensor/geo_rss_events.py
index c8c4db17c8d630..b79e6e69adf492 100644
--- a/homeassistant/components/sensor/geo_rss_events.py
+++ b/homeassistant/components/sensor/geo_rss_events.py
@@ -149,7 +149,7 @@ def update(self):
             self._state_attributes = matrix
 
 
-class GeoRssServiceData(object):
+class GeoRssServiceData:
     """Provide access to GeoRSS feed and stores the latest data."""
 
     def __init__(self, home_latitude, home_longitude, url, radius_in_km):
diff --git a/homeassistant/components/sensor/glances.py b/homeassistant/components/sensor/glances.py
index bd6e91c7b531b0..a6dfd89e45a137 100644
--- a/homeassistant/components/sensor/glances.py
+++ b/homeassistant/components/sensor/glances.py
@@ -176,7 +176,7 @@ def update(self):
                 self._state = round(use / 1024**2, 1)
 
 
-class GlancesData(object):
+class GlancesData:
     """The class for handling the data retrieval."""
 
     def __init__(self, resource):
diff --git a/homeassistant/components/sensor/google_wifi.py b/homeassistant/components/sensor/google_wifi.py
index 388af9b3ce7608..cc5461ed548124 100644
--- a/homeassistant/components/sensor/google_wifi.py
+++ b/homeassistant/components/sensor/google_wifi.py
@@ -138,7 +138,7 @@ def update(self):
             self._state = STATE_UNKNOWN
 
 
-class GoogleWifiAPI(object):
+class GoogleWifiAPI:
     """Get the latest data and update the states."""
 
     def __init__(self, host, conditions):
diff --git a/homeassistant/components/sensor/haveibeenpwned.py b/homeassistant/components/sensor/haveibeenpwned.py
index c1fe7ab4880fab..bc79c4d0c1dac0 100644
--- a/homeassistant/components/sensor/haveibeenpwned.py
+++ b/homeassistant/components/sensor/haveibeenpwned.py
@@ -122,7 +122,7 @@ def update(self):
             self._state = len(self._data.data[self._email])
 
 
-class HaveIBeenPwnedData(object):
+class HaveIBeenPwnedData:
     """Class for handling the data retrieval."""
 
     def __init__(self, emails):
diff --git a/homeassistant/components/sensor/hddtemp.py b/homeassistant/components/sensor/hddtemp.py
index 006542a777f7fb..f8afe9c7637023 100644
--- a/homeassistant/components/sensor/hddtemp.py
+++ b/homeassistant/components/sensor/hddtemp.py
@@ -108,7 +108,7 @@ def update(self):
             self._state = None
 
 
-class HddTempData(object):
+class HddTempData:
     """Get the latest data from HDDTemp and update the states."""
 
     def __init__(self, host, port):
diff --git a/homeassistant/components/sensor/hp_ilo.py b/homeassistant/components/sensor/hp_ilo.py
index acd10fe08afb3a..98ee83f8958355 100644
--- a/homeassistant/components/sensor/hp_ilo.py
+++ b/homeassistant/components/sensor/hp_ilo.py
@@ -147,7 +147,7 @@ def update(self):
         self._state = ilo_data
 
 
-class HpIloData(object):
+class HpIloData:
     """Gets the latest data from HP ILO."""
 
     def __init__(self, host, port, login, password):
diff --git a/homeassistant/components/sensor/hydroquebec.py b/homeassistant/components/sensor/hydroquebec.py
index 2195153ab1edfb..db75d51fbad5c0 100644
--- a/homeassistant/components/sensor/hydroquebec.py
+++ b/homeassistant/components/sensor/hydroquebec.py
@@ -162,7 +162,7 @@ def async_update(self):
             self._state = round(self.hydroquebec_data.data[self.type], 2)
 
 
-class HydroquebecData(object):
+class HydroquebecData:
     """Get data from HydroQuebec."""
 
     def __init__(self, username, password, httpsession, contract=None):
diff --git a/homeassistant/components/sensor/imap_email_content.py b/homeassistant/components/sensor/imap_email_content.py
index c0c9bf62efdfd3..a1a604df3e496b 100644
--- a/homeassistant/components/sensor/imap_email_content.py
+++ b/homeassistant/components/sensor/imap_email_content.py
@@ -58,7 +58,7 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
         return False
 
 
-class EmailReader(object):
+class EmailReader:
     """A class to read emails from an IMAP server."""
 
     def __init__(self, user, password, server, port):
diff --git a/homeassistant/components/sensor/influxdb.py b/homeassistant/components/sensor/influxdb.py
index c0d492984e0a52..8bfbaf49837f30 100644
--- a/homeassistant/components/sensor/influxdb.py
+++ b/homeassistant/components/sensor/influxdb.py
@@ -155,7 +155,7 @@ def update(self):
         self._state = value
 
 
-class InfluxSensorData(object):
+class InfluxSensorData:
     """Class for handling the data retrieval."""
 
     def __init__(self, influx, group, field, measurement, where):
diff --git a/homeassistant/components/sensor/irish_rail_transport.py b/homeassistant/components/sensor/irish_rail_transport.py
index 603d82359de6b5..5febebeec870c3 100644
--- a/homeassistant/components/sensor/irish_rail_transport.py
+++ b/homeassistant/components/sensor/irish_rail_transport.py
@@ -132,7 +132,7 @@ def update(self):
             self._state = None
 
 
-class IrishRailTransportData(object):
+class IrishRailTransportData:
     """The Class for handling the data retrieval."""
 
     def __init__(self, irish_rail, station, direction, destination, stops_at):
diff --git a/homeassistant/components/sensor/london_air.py b/homeassistant/components/sensor/london_air.py
index 2ffbb91427565d..bbb5993b0644cf 100644
--- a/homeassistant/components/sensor/london_air.py
+++ b/homeassistant/components/sensor/london_air.py
@@ -71,7 +71,7 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
     add_devices(sensors, True)
 
 
-class APIData(object):
+class APIData:
     """Get the latest data for all authorities."""
 
     def __init__(self):
diff --git a/homeassistant/components/sensor/london_underground.py b/homeassistant/components/sensor/london_underground.py
index fe13c0db8a7e85..4619eda061123a 100644
--- a/homeassistant/components/sensor/london_underground.py
+++ b/homeassistant/components/sensor/london_underground.py
@@ -95,7 +95,7 @@ def update(self):
         self._description = self._data.data[self.name]['Description']
 
 
-class TubeData(object):
+class TubeData:
     """Get the latest tube data from TFL."""
 
     def __init__(self):
diff --git a/homeassistant/components/sensor/luftdaten.py b/homeassistant/components/sensor/luftdaten.py
index 9952e2a1c243d2..c9bc7205ce6305 100644
--- a/homeassistant/components/sensor/luftdaten.py
+++ b/homeassistant/components/sensor/luftdaten.py
@@ -137,7 +137,7 @@ async def async_update(self):
         await self.luftdaten.async_update()
 
 
-class LuftdatenData(object):
+class LuftdatenData:
     """Class for handling the data retrieval."""
 
     def __init__(self, data):
diff --git a/homeassistant/components/sensor/lyft.py b/homeassistant/components/sensor/lyft.py
index c2f6412049cda7..57e5f1c6b02c88 100644
--- a/homeassistant/components/sensor/lyft.py
+++ b/homeassistant/components/sensor/lyft.py
@@ -183,7 +183,7 @@ def update(self):
                      estimate.get('estimated_cost_cents_max', 0)) / 2) / 100)
 
 
-class LyftEstimate(object):
+class LyftEstimate:
     """The class for handling the time and price estimate."""
 
     def __init__(self, session, start_latitude, start_longitude,
diff --git a/homeassistant/components/sensor/metoffice.py b/homeassistant/components/sensor/metoffice.py
index b6366de6432094..ec3d3f47ba7f30 100644
--- a/homeassistant/components/sensor/metoffice.py
+++ b/homeassistant/components/sensor/metoffice.py
@@ -174,7 +174,7 @@ def update(self):
         self.data.update()
 
 
-class MetOfficeCurrentData(object):
+class MetOfficeCurrentData:
     """Get data from Datapoint."""
 
     def __init__(self, hass, datapoint, site):
diff --git a/homeassistant/components/sensor/mhz19.py b/homeassistant/components/sensor/mhz19.py
index cd559d3bbd26cf..60f6598ab21064 100644
--- a/homeassistant/components/sensor/mhz19.py
+++ b/homeassistant/components/sensor/mhz19.py
@@ -117,7 +117,7 @@ def device_state_attributes(self):
         return result
 
 
-class MHZClient(object):
+class MHZClient:
     """Get the latest data from the MH-Z sensor."""
 
     def __init__(self, co2sensor, serial):
diff --git a/homeassistant/components/sensor/mopar.py b/homeassistant/components/sensor/mopar.py
index 3e1887cfd598b5..81c48555cfca32 100644
--- a/homeassistant/components/sensor/mopar.py
+++ b/homeassistant/components/sensor/mopar.py
@@ -70,7 +70,7 @@ def _handle_service(service):
                  for index, _ in enumerate(data.vehicles)], True)
 
 
-class MoparData(object):
+class MoparData:
     """Container for Mopar vehicle data.
 
     Prevents session expiry re-login race condition.
diff --git a/homeassistant/components/sensor/mvglive.py b/homeassistant/components/sensor/mvglive.py
index 81c7173e4d0386..95f2845eced6d3 100644
--- a/homeassistant/components/sensor/mvglive.py
+++ b/homeassistant/components/sensor/mvglive.py
@@ -123,7 +123,7 @@ def update(self):
             self._icon = ICONS[self.data.departures.get('product', '-')]
 
 
-class MVGLiveData(object):
+class MVGLiveData:
     """Pull data from the mvg-live.de web page."""
 
     def __init__(self, station, destinations, directions,
diff --git a/homeassistant/components/sensor/netatmo.py b/homeassistant/components/sensor/netatmo.py
index 54b095bb84bb97..bc0cbc5eea6721 100644
--- a/homeassistant/components/sensor/netatmo.py
+++ b/homeassistant/components/sensor/netatmo.py
@@ -287,7 +287,7 @@ def update(self):
                 self._state = "Full"
 
 
-class NetAtmoData(object):
+class NetAtmoData:
     """Get the latest data from NetAtmo."""
 
     def __init__(self, auth, station):
diff --git a/homeassistant/components/sensor/netdata.py b/homeassistant/components/sensor/netdata.py
index 2d08159967c4d2..488b16113999a3 100644
--- a/homeassistant/components/sensor/netdata.py
+++ b/homeassistant/components/sensor/netdata.py
@@ -134,7 +134,7 @@ async def async_update(self):
             resource_data['dimensions'][self._element]['value'], 2)
 
 
-class NetdataData(object):
+class NetdataData:
     """The class for handling the data retrieval."""
 
     def __init__(self, api):
diff --git a/homeassistant/components/sensor/neurio_energy.py b/homeassistant/components/sensor/neurio_energy.py
index 5e3bf55dc9d17d..fd8b8d2aeecee3 100644
--- a/homeassistant/components/sensor/neurio_energy.py
+++ b/homeassistant/components/sensor/neurio_energy.py
@@ -69,7 +69,7 @@ def update_active():
     add_devices([NeurioEnergy(data, DAILY_NAME, DAILY_TYPE, update_daily)])
 
 
-class NeurioData(object):
+class NeurioData:
     """Stores data retrieved from Neurio sensor."""
 
     def __init__(self, api_key, api_secret, sensor_id):
diff --git a/homeassistant/components/sensor/nsw_fuel_station.py b/homeassistant/components/sensor/nsw_fuel_station.py
index 2440dac3204e6f..5f677d39888ea9 100644
--- a/homeassistant/components/sensor/nsw_fuel_station.py
+++ b/homeassistant/components/sensor/nsw_fuel_station.py
@@ -73,7 +73,7 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
     ])
 
 
-class StationPriceData(object):
+class StationPriceData:
     """An object to store and fetch the latest data for a given station."""
 
     def __init__(self, client, station_id: int) -> None:
diff --git a/homeassistant/components/sensor/nut.py b/homeassistant/components/sensor/nut.py
index 7c7ff3480b00e0..ff0cd8ef891c9a 100644
--- a/homeassistant/components/sensor/nut.py
+++ b/homeassistant/components/sensor/nut.py
@@ -260,7 +260,7 @@ def update(self):
             self._state = self._data.status[self.type]
 
 
-class PyNUTData(object):
+class PyNUTData:
     """Stores the data retrieved from NUT.
 
     For each entity to use, acts as the single point responsible for fetching
diff --git a/homeassistant/components/sensor/nzbget.py b/homeassistant/components/sensor/nzbget.py
index 0fa6362ad051ff..a8dda416a547af 100644
--- a/homeassistant/components/sensor/nzbget.py
+++ b/homeassistant/components/sensor/nzbget.py
@@ -138,7 +138,7 @@ def update(self):
             self._state = value
 
 
-class NZBGetAPI(object):
+class NZBGetAPI:
     """Simple JSON-RPC wrapper for NZBGet's API."""
 
     def __init__(self, api_url, username=None, password=None):
diff --git a/homeassistant/components/sensor/openexchangerates.py b/homeassistant/components/sensor/openexchangerates.py
index 741ffa2842d2fa..5e8231bb124904 100644
--- a/homeassistant/components/sensor/openexchangerates.py
+++ b/homeassistant/components/sensor/openexchangerates.py
@@ -93,7 +93,7 @@ def update(self):
         self._state = round(value[str(self._quote)], 4)
 
 
-class OpenexchangeratesData(object):
+class OpenexchangeratesData:
     """Get data from Openexchangerates.org."""
 
     def __init__(self, resource, parameters, quote):
diff --git a/homeassistant/components/sensor/openhardwaremonitor.py b/homeassistant/components/sensor/openhardwaremonitor.py
index 1b5867836bcfda..dc221f6b07d60a 100644
--- a/homeassistant/components/sensor/openhardwaremonitor.py
+++ b/homeassistant/components/sensor/openhardwaremonitor.py
@@ -108,7 +108,7 @@ def update(self):
                 })
 
 
-class OpenHardwareMonitorData(object):
+class OpenHardwareMonitorData:
     """Class used to pull data from OHM and create sensors."""
 
     def __init__(self, config, hass):
diff --git a/homeassistant/components/sensor/openweathermap.py b/homeassistant/components/sensor/openweathermap.py
index 96db4430d326b0..6241f3e5378190 100644
--- a/homeassistant/components/sensor/openweathermap.py
+++ b/homeassistant/components/sensor/openweathermap.py
@@ -179,7 +179,7 @@ def update(self):
             self._state = fc_data.get_weathers()[0].get_detailed_status()
 
 
-class WeatherData(object):
+class WeatherData:
     """Get the latest data from OpenWeatherMap."""
 
     def __init__(self, owm, forecast, latitude, longitude):
diff --git a/homeassistant/components/sensor/pi_hole.py b/homeassistant/components/sensor/pi_hole.py
index 2adf5691e2e134..363ada725ba8db 100644
--- a/homeassistant/components/sensor/pi_hole.py
+++ b/homeassistant/components/sensor/pi_hole.py
@@ -153,7 +153,7 @@ async def async_update(self):
         self.data = self.pi_hole.api.data
 
 
-class PiHoleData(object):
+class PiHoleData:
     """Get the latest data and update the states."""
 
     def __init__(self, api):
diff --git a/homeassistant/components/sensor/pollen.py b/homeassistant/components/sensor/pollen.py
index c11c83ab40e1c8..ea68a902c484e5 100644
--- a/homeassistant/components/sensor/pollen.py
+++ b/homeassistant/components/sensor/pollen.py
@@ -263,7 +263,7 @@ async def async_update(self):
             self._state = average
 
 
-class PollenComData(object):
+class PollenComData:
     """Define a data object to retrieve info from Pollen.com."""
 
     def __init__(self, client, sensor_types):
diff --git a/homeassistant/components/sensor/pyload.py b/homeassistant/components/sensor/pyload.py
index cc4ce1e64485e6..a5593c259a5505 100644
--- a/homeassistant/components/sensor/pyload.py
+++ b/homeassistant/components/sensor/pyload.py
@@ -124,7 +124,7 @@ def update(self):
             self._state = value
 
 
-class PyLoadAPI(object):
+class PyLoadAPI:
     """Simple wrapper for pyLoad's API."""
 
     def __init__(self, api_url, username=None, password=None):
diff --git a/homeassistant/components/sensor/qnap.py b/homeassistant/components/sensor/qnap.py
index 97cf948ff9fc47..a44823d86ba7fd 100644
--- a/homeassistant/components/sensor/qnap.py
+++ b/homeassistant/components/sensor/qnap.py
@@ -164,7 +164,7 @@ def round_nicely(number):
     return round(number)
 
 
-class QNAPStatsAPI(object):
+class QNAPStatsAPI:
     """Class to interface with the API."""
 
     def __init__(self, config):
diff --git a/homeassistant/components/sensor/rest.py b/homeassistant/components/sensor/rest.py
index 75235bedaab6bc..8db48719a37cc6 100644
--- a/homeassistant/components/sensor/rest.py
+++ b/homeassistant/components/sensor/rest.py
@@ -158,7 +158,7 @@ def device_state_attributes(self):
         return self._attributes
 
 
-class RestData(object):
+class RestData:
     """Class for handling the data retrieval."""
 
     def __init__(self, method, resource, auth, headers, data, verify_ssl):
diff --git a/homeassistant/components/sensor/sense.py b/homeassistant/components/sensor/sense.py
index 5eee9053db52d6..16f4ccb9b6c1b3 100644
--- a/homeassistant/components/sensor/sense.py
+++ b/homeassistant/components/sensor/sense.py
@@ -27,7 +27,7 @@
 ACTIVE_TYPE = 'active'
 
 
-class SensorConfig(object):
+class SensorConfig:
     """Data structure holding sensor config."""
 
     def __init__(self, name, sensor_type):
diff --git a/homeassistant/components/sensor/sensehat.py b/homeassistant/components/sensor/sensehat.py
index a50f4cdfd2c694..f0e566f718f613 100644
--- a/homeassistant/components/sensor/sensehat.py
+++ b/homeassistant/components/sensor/sensehat.py
@@ -109,7 +109,7 @@ def update(self):
             self._state = self.data.pressure
 
 
-class SenseHatData(object):
+class SenseHatData:
     """Get the latest data and update."""
 
     def __init__(self, is_hat_attached):
diff --git a/homeassistant/components/sensor/shodan.py b/homeassistant/components/sensor/shodan.py
index bc3e127508bc0b..541abea3091b84 100644
--- a/homeassistant/components/sensor/shodan.py
+++ b/homeassistant/components/sensor/shodan.py
@@ -96,7 +96,7 @@ def update(self):
         self._state = self.data.details['total']
 
 
-class ShodanData(object):
+class ShodanData:
     """Get the latest data and update the states."""
 
     def __init__(self, api, query):
diff --git a/homeassistant/components/sensor/sht31.py b/homeassistant/components/sensor/sht31.py
index e1a7f3c9e5f6f3..2aeff8e73d8271 100644
--- a/homeassistant/components/sensor/sht31.py
+++ b/homeassistant/components/sensor/sht31.py
@@ -75,7 +75,7 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
     add_devices(devs)
 
 
-class SHTClient(object):
+class SHTClient:
     """Get the latest data from the SHT sensor."""
 
     def __init__(self, adafruit_sht):
diff --git a/homeassistant/components/sensor/sigfox.py b/homeassistant/components/sensor/sigfox.py
index da8f3fcc639405..408435a966701e 100644
--- a/homeassistant/components/sensor/sigfox.py
+++ b/homeassistant/components/sensor/sigfox.py
@@ -55,7 +55,7 @@ def epoch_to_datetime(epoch_time):
     return datetime.datetime.fromtimestamp(epoch_time).isoformat()
 
 
-class SigfoxAPI(object):
+class SigfoxAPI:
     """Class for interacting with the SigFox API."""
 
     def __init__(self, api_login, api_password):
diff --git a/homeassistant/components/sensor/snmp.py b/homeassistant/components/sensor/snmp.py
index 95bf207acf8e39..0ba74f0e7ed0f1 100644
--- a/homeassistant/components/sensor/snmp.py
+++ b/homeassistant/components/sensor/snmp.py
@@ -131,7 +131,7 @@ def update(self):
         self._state = value
 
 
-class SnmpData(object):
+class SnmpData:
     """Get the latest data and update the states."""
 
     def __init__(self, host, port, community, baseoid, version, accept_errors,
diff --git a/homeassistant/components/sensor/speedtest.py b/homeassistant/components/sensor/speedtest.py
index bf2868d3b0197e..8c1ffc03786216 100644
--- a/homeassistant/components/sensor/speedtest.py
+++ b/homeassistant/components/sensor/speedtest.py
@@ -148,7 +148,7 @@ def async_added_to_hass(self):
         self._state = state.state
 
 
-class SpeedtestData(object):
+class SpeedtestData:
     """Get the latest data from speedtest.net."""
 
     def __init__(self, hass, config):
diff --git a/homeassistant/components/sensor/startca.py b/homeassistant/components/sensor/startca.py
index aefbc2d46268ca..374e14c5ac2ea2 100644
--- a/homeassistant/components/sensor/startca.py
+++ b/homeassistant/components/sensor/startca.py
@@ -118,7 +118,7 @@ def async_update(self):
             self._state = round(self.startcadata.data[self.type], 2)
 
 
-class StartcaData(object):
+class StartcaData:
     """Get data from Start.ca API."""
 
     def __init__(self, loop, websession, api_key, bandwidth_cap):
diff --git a/homeassistant/components/sensor/swiss_hydrological_data.py b/homeassistant/components/sensor/swiss_hydrological_data.py
index 63d500e2373bfa..b4536b48c9ecf3 100644
--- a/homeassistant/components/sensor/swiss_hydrological_data.py
+++ b/homeassistant/components/sensor/swiss_hydrological_data.py
@@ -145,7 +145,7 @@ def update(self):
                 self._state = self.data.measurings['03']['current']
 
 
-class HydrologicalData(object):
+class HydrologicalData:
     """The Class for handling the data retrieval."""
 
     def __init__(self, station):
diff --git a/homeassistant/components/sensor/synologydsm.py b/homeassistant/components/sensor/synologydsm.py
index e70dd482f1e406..124cec97617af3 100644
--- a/homeassistant/components/sensor/synologydsm.py
+++ b/homeassistant/components/sensor/synologydsm.py
@@ -129,7 +129,7 @@ def run_setup(event):
     hass.bus.listen_once(EVENT_HOMEASSISTANT_START, run_setup)
 
 
-class SynoApi(object):
+class SynoApi:
     """Class to interface with Synology DSM API."""
 
     def __init__(self, host, port, username, password, temp_unit, use_ssl):
diff --git a/homeassistant/components/sensor/sytadin.py b/homeassistant/components/sensor/sytadin.py
index 9a85eb255751cc..6b2284f4376b1e 100644
--- a/homeassistant/components/sensor/sytadin.py
+++ b/homeassistant/components/sensor/sytadin.py
@@ -113,7 +113,7 @@ def update(self):
             self._state = self.data.congestion
 
 
-class SytadinData(object):
+class SytadinData:
     """The class for handling the data retrieval."""
 
     def __init__(self, resource):
diff --git a/homeassistant/components/sensor/ted5000.py b/homeassistant/components/sensor/ted5000.py
index c2ef1d4c6b90b3..7298181796a7ad 100644
--- a/homeassistant/components/sensor/ted5000.py
+++ b/homeassistant/components/sensor/ted5000.py
@@ -88,7 +88,7 @@ def update(self):
         self._gateway.update()
 
 
-class Ted5000Gateway(object):
+class Ted5000Gateway:
     """The class for handling the data retrieval."""
 
     def __init__(self, url):
diff --git a/homeassistant/components/sensor/teksavvy.py b/homeassistant/components/sensor/teksavvy.py
index 0bf1ef4caff61d..68a1cfc4fe17fa 100644
--- a/homeassistant/components/sensor/teksavvy.py
+++ b/homeassistant/components/sensor/teksavvy.py
@@ -119,7 +119,7 @@ def async_update(self):
             self._state = round(self.teksavvydata.data[self.type], 2)
 
 
-class TekSavvyData(object):
+class TekSavvyData:
     """Get data from TekSavvy API."""
 
     def __init__(self, loop, websession, api_key, bandwidth_cap):
diff --git a/homeassistant/components/sensor/thethingsnetwork.py b/homeassistant/components/sensor/thethingsnetwork.py
index 28a3b48892b6bd..0f27b65640441c 100644
--- a/homeassistant/components/sensor/thethingsnetwork.py
+++ b/homeassistant/components/sensor/thethingsnetwork.py
@@ -110,7 +110,7 @@ def async_update(self):
         self._state = self._ttn_data_storage.data
 
 
-class TtnDataStorage(object):
+class TtnDataStorage:
     """Get the latest data from The Things Network Data Storage."""
 
     def __init__(self, hass, app_id, device_id, access_key, values):
diff --git a/homeassistant/components/sensor/transmission.py b/homeassistant/components/sensor/transmission.py
index 4dac411d2246a5..3e74b4549137de 100644
--- a/homeassistant/components/sensor/transmission.py
+++ b/homeassistant/components/sensor/transmission.py
@@ -148,7 +148,7 @@ def update(self):
                 self._state = self._data.torrentCount
 
 
-class TransmissionData(object):
+class TransmissionData:
     """Get the latest data and update the states."""
 
     def __init__(self, api):
diff --git a/homeassistant/components/sensor/uber.py b/homeassistant/components/sensor/uber.py
index e80fe7d2d8255a..cd476a1a2265ee 100644
--- a/homeassistant/components/sensor/uber.py
+++ b/homeassistant/components/sensor/uber.py
@@ -175,7 +175,7 @@ def update(self):
                 self._state = 0
 
 
-class UberEstimate(object):
+class UberEstimate:
     """The class for handling the time and price estimate."""
 
     def __init__(self, session, start_latitude, start_longitude,
diff --git a/homeassistant/components/sensor/waterfurnace.py b/homeassistant/components/sensor/waterfurnace.py
index 24c45ec1ff3ef2..76c5d2f648ed60 100644
--- a/homeassistant/components/sensor/waterfurnace.py
+++ b/homeassistant/components/sensor/waterfurnace.py
@@ -16,7 +16,7 @@
 from homeassistant.util import slugify
 
 
-class WFSensorConfig(object):
+class WFSensorConfig:
     """Water Furnace Sensor configuration."""
 
     def __init__(self, friendly_name, field, icon="mdi:gauge",
diff --git a/homeassistant/components/sensor/wunderground.py b/homeassistant/components/sensor/wunderground.py
index 7f2df4bcda925a..24ae2d0068ffb3 100644
--- a/homeassistant/components/sensor/wunderground.py
+++ b/homeassistant/components/sensor/wunderground.py
@@ -40,7 +40,7 @@
 
 # Helper classes for declaring sensor configurations
 
-class WUSensorConfig(object):
+class WUSensorConfig:
     """WU Sensor Configuration.
 
     defines basic HA properties of the weather sensor and
@@ -764,7 +764,7 @@ def unique_id(self) -> str:
         return self._unique_id
 
 
-class WUndergroundData(object):
+class WUndergroundData:
     """Get data from WUnderground."""
 
     def __init__(self, hass, api_key, pws_id, lang, latitude, longitude):
diff --git a/homeassistant/components/sensor/yahoo_finance.py b/homeassistant/components/sensor/yahoo_finance.py
index 8c2cfd9923fd0d..82cb7f845dc29a 100644
--- a/homeassistant/components/sensor/yahoo_finance.py
+++ b/homeassistant/components/sensor/yahoo_finance.py
@@ -104,7 +104,7 @@ def update(self):
         self._state = self.data.state
 
 
-class YahooFinanceData(object):
+class YahooFinanceData:
     """Get data from Yahoo Finance."""
 
     def __init__(self, symbol):
diff --git a/homeassistant/components/sensor/yr.py b/homeassistant/components/sensor/yr.py
index c7ff967723b68f..fcddf41af970f7 100644
--- a/homeassistant/components/sensor/yr.py
+++ b/homeassistant/components/sensor/yr.py
@@ -142,7 +142,7 @@ def unit_of_measurement(self):
         return self._unit_of_measurement
 
 
-class YrData(object):
+class YrData:
     """Get the latest data and updates the states."""
 
     def __init__(self, hass, coordinates, forecast, devices):
diff --git a/homeassistant/components/sensor/yweather.py b/homeassistant/components/sensor/yweather.py
index db66419e54ab1d..b2279e107da11b 100644
--- a/homeassistant/components/sensor/yweather.py
+++ b/homeassistant/components/sensor/yweather.py
@@ -174,7 +174,7 @@ def update(self):
                 float(self._data.yahoo.Atmosphere['visibility'])/1.61, 2)
 
 
-class YahooWeatherData(object):
+class YahooWeatherData:
     """Handle Yahoo! API object and limit updates."""
 
     def __init__(self, woeid, temp_unit):
diff --git a/homeassistant/components/sensor/zamg.py b/homeassistant/components/sensor/zamg.py
index df5ff5e8d372f0..e8e5fdec4d8ef4 100644
--- a/homeassistant/components/sensor/zamg.py
+++ b/homeassistant/components/sensor/zamg.py
@@ -133,7 +133,7 @@ def update(self):
         self.probe.update()
 
 
-class ZamgData(object):
+class ZamgData:
     """The class for handling the data retrieval."""
 
     API_URL = 'http://www.zamg.ac.at/ogd/'
diff --git a/homeassistant/components/sensor/zwave.py b/homeassistant/components/sensor/zwave.py
index b2a913c2af8b0c..d2166dde64e276 100644
--- a/homeassistant/components/sensor/zwave.py
+++ b/homeassistant/components/sensor/zwave.py
@@ -8,7 +8,7 @@
 from homeassistant.components.sensor import DOMAIN
 from homeassistant.components import zwave
 from homeassistant.const import TEMP_CELSIUS, TEMP_FAHRENHEIT
-from homeassistant.components.zwave import async_setup_platform  # noqa # pylint: disable=unused-import
+from homeassistant.components.zwave import async_setup_platform  # noqa pylint: disable=unused-import
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sleepiq.py b/homeassistant/components/sleepiq.py
index df36eef2f9ef9a..4d4ecf0160b564 100644
--- a/homeassistant/components/sleepiq.py
+++ b/homeassistant/components/sleepiq.py
@@ -73,7 +73,7 @@ def setup(hass, config):
     return True
 
 
-class SleepIQData(object):
+class SleepIQData:
     """Get the latest data from SleepIQ."""
 
     def __init__(self, client):
diff --git a/homeassistant/components/smappee.py b/homeassistant/components/smappee.py
index b35cd8cf5a8ce1..2ee0080a06d6ee 100644
--- a/homeassistant/components/smappee.py
+++ b/homeassistant/components/smappee.py
@@ -71,7 +71,7 @@ def setup(hass, config):
     return True
 
 
-class Smappee(object):
+class Smappee:
     """Stores data retrieved from Smappee sensor."""
 
     def __init__(self, client_id, client_secret, username,
diff --git a/homeassistant/components/switch/anel_pwrctrl.py b/homeassistant/components/switch/anel_pwrctrl.py
index 4e62b711979558..01d27b8abcd3b7 100644
--- a/homeassistant/components/switch/anel_pwrctrl.py
+++ b/homeassistant/components/switch/anel_pwrctrl.py
@@ -107,7 +107,7 @@ def turn_off(self, **kwargs):
         self._port.off()
 
 
-class PwrCtrlDevice(object):
+class PwrCtrlDevice:
     """Device representation for per device throttling."""
 
     def __init__(self, device):
diff --git a/homeassistant/components/switch/broadlink.py b/homeassistant/components/switch/broadlink.py
index 460021121775da..6b754effaf1deb 100644
--- a/homeassistant/components/switch/broadlink.py
+++ b/homeassistant/components/switch/broadlink.py
@@ -348,7 +348,7 @@ def update(self):
         self._state = self._parent_device.get_outlet_status(self._slot)
 
 
-class BroadlinkMP1Switch(object):
+class BroadlinkMP1Switch:
     """Representation of a Broadlink switch - To fetch states of all slots."""
 
     def __init__(self, device):
diff --git a/homeassistant/components/switch/digitalloggers.py b/homeassistant/components/switch/digitalloggers.py
index f3af70c6222f74..29e6771d1d581f 100644
--- a/homeassistant/components/switch/digitalloggers.py
+++ b/homeassistant/components/switch/digitalloggers.py
@@ -122,7 +122,7 @@ def update(self):
         self._state = outlet_status[2] == 'ON'
 
 
-class DINRelayDevice(object):
+class DINRelayDevice:
     """Device representation for per device throttling."""
 
     def __init__(self, power_switch):
diff --git a/homeassistant/components/switch/dlink.py b/homeassistant/components/switch/dlink.py
index 1c7253c4ec378f..9ce324ef6bb8c0 100644
--- a/homeassistant/components/switch/dlink.py
+++ b/homeassistant/components/switch/dlink.py
@@ -125,7 +125,7 @@ def update(self):
         self.data.update()
 
 
-class SmartPlugData(object):
+class SmartPlugData:
     """Get the latest data from smart plug."""
 
     def __init__(self, smartplug):
diff --git a/homeassistant/components/switch/fritzdect.py b/homeassistant/components/switch/fritzdect.py
index 9968f631260d97..9c0f852846a7c5 100644
--- a/homeassistant/components/switch/fritzdect.py
+++ b/homeassistant/components/switch/fritzdect.py
@@ -163,7 +163,7 @@ def update(self):
             self.data.is_online = False
 
 
-class FritzDectSwitchData(object):
+class FritzDectSwitchData:
     """Get the latest data from the fritz box."""
 
     def __init__(self, fritz, ain):
diff --git a/homeassistant/components/switch/pilight.py b/homeassistant/components/switch/pilight.py
index 4e5f1c47e9ff21..7ffce13ff6afd6 100644
--- a/homeassistant/components/switch/pilight.py
+++ b/homeassistant/components/switch/pilight.py
@@ -80,7 +80,7 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
     add_devices(devices)
 
 
-class _ReceiveHandle(object):
+class _ReceiveHandle:
     def __init__(self, config, echo):
         """Initialize the handle."""
         self.config_items = config.items()
diff --git a/homeassistant/components/switch/scsgate.py b/homeassistant/components/switch/scsgate.py
index adc08a65e71191..b549f351afc84e 100644
--- a/homeassistant/components/switch/scsgate.py
+++ b/homeassistant/components/switch/scsgate.py
@@ -152,7 +152,7 @@ def process_event(self, message):
         )
 
 
-class SCSGateScenarioSwitch(object):
+class SCSGateScenarioSwitch:
     """Provides a SCSGate scenario switch.
 
     This switch is always in an 'off" state, when toggled it's used to trigger
diff --git a/homeassistant/components/switch/zwave.py b/homeassistant/components/switch/zwave.py
index 8a0a1683aa41aa..31f942bd3af7df 100644
--- a/homeassistant/components/switch/zwave.py
+++ b/homeassistant/components/switch/zwave.py
@@ -8,7 +8,7 @@
 import time
 from homeassistant.components.switch import DOMAIN, SwitchDevice
 from homeassistant.components import zwave
-from homeassistant.components.zwave import workaround, async_setup_platform  # noqa # pylint: disable=unused-import
+from homeassistant.components.zwave import workaround, async_setup_platform  # noqa pylint: disable=unused-import
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tellduslive.py b/homeassistant/components/tellduslive.py
index dfb4b1e5fa9c24..bb235647d1b3d0 100644
--- a/homeassistant/components/tellduslive.py
+++ b/homeassistant/components/tellduslive.py
@@ -206,7 +206,7 @@ def tellstick_discovered(service, info):
     return True
 
 
-class TelldusLiveClient(object):
+class TelldusLiveClient:
     """Get the latest data and update the states."""
 
     def __init__(self, hass, config, session):
diff --git a/homeassistant/components/toon.py b/homeassistant/components/toon.py
index ffb820e81481c6..cfd0d297d5466f 100644
--- a/homeassistant/components/toon.py
+++ b/homeassistant/components/toon.py
@@ -59,7 +59,7 @@ def setup(hass, config):
     return True
 
 
-class ToonDataStore(object):
+class ToonDataStore:
     """An object to store the Toon data."""
 
     def __init__(self, username, password, gas=DEFAULT_GAS,
diff --git a/homeassistant/components/tts/__init__.py b/homeassistant/components/tts/__init__.py
index 999b584360cd79..f8a521c3e2f948 100644
--- a/homeassistant/components/tts/__init__.py
+++ b/homeassistant/components/tts/__init__.py
@@ -169,7 +169,7 @@ async def async_clear_cache_handle(service):
     return True
 
 
-class SpeechManager(object):
+class SpeechManager:
     """Representation of a speech store."""
 
     def __init__(self, hass):
@@ -440,7 +440,7 @@ def write_tags(filename, data, provider, message, language, options):
         return data_bytes.getvalue()
 
 
-class Provider(object):
+class Provider:
     """Represent a single TTS provider."""
 
     hass = None
diff --git a/homeassistant/components/upcloud.py b/homeassistant/components/upcloud.py
index 9de7f6c444413e..0f503dcdc39032 100644
--- a/homeassistant/components/upcloud.py
+++ b/homeassistant/components/upcloud.py
@@ -92,7 +92,7 @@ def upcloud_update(event_time):
     return True
 
 
-class UpCloud(object):
+class UpCloud:
     """Handle all communication with the UpCloud API."""
 
     def __init__(self, manager):
diff --git a/homeassistant/components/usps.py b/homeassistant/components/usps.py
index 364562f111937f..41aa240492bead 100644
--- a/homeassistant/components/usps.py
+++ b/homeassistant/components/usps.py
@@ -65,7 +65,7 @@ def setup(hass, config):
     return True
 
 
-class USPSData(object):
+class USPSData:
     """Stores the data retrieved from USPS.
 
     For each entity to use, acts as the single point responsible for fetching
diff --git a/homeassistant/components/verisure.py b/homeassistant/components/verisure.py
index b367752c24783f..1f26ab639d6fc4 100644
--- a/homeassistant/components/verisure.py
+++ b/homeassistant/components/verisure.py
@@ -89,7 +89,7 @@ def capture_smartcam(service):
     return True
 
 
-class VerisureHub(object):
+class VerisureHub:
     """A Verisure hub wrapper class."""
 
     def __init__(self, domain_config, verisure):
diff --git a/homeassistant/components/vultr.py b/homeassistant/components/vultr.py
index 59fc707bb28e5f..b28189444ee5eb 100644
--- a/homeassistant/components/vultr.py
+++ b/homeassistant/components/vultr.py
@@ -74,7 +74,7 @@ def setup(hass, config):
     return True
 
 
-class Vultr(object):
+class Vultr:
     """Handle all communication with the Vultr API."""
 
     def __init__(self, api_key):
diff --git a/homeassistant/components/weather/darksky.py b/homeassistant/components/weather/darksky.py
index 7afa97fd4f61db..6dac22bc941a2a 100644
--- a/homeassistant/components/weather/darksky.py
+++ b/homeassistant/components/weather/darksky.py
@@ -149,7 +149,7 @@ def update(self):
         self._ds_daily = self._dark_sky.daily
 
 
-class DarkSkyData(object):
+class DarkSkyData:
     """Get the latest data from Dark Sky."""
 
     def __init__(self, api_key, latitude, longitude, units):
diff --git a/homeassistant/components/weather/openweathermap.py b/homeassistant/components/weather/openweathermap.py
index 65fa7c8cb0f9e8..0c876d9e2d7486 100644
--- a/homeassistant/components/weather/openweathermap.py
+++ b/homeassistant/components/weather/openweathermap.py
@@ -195,7 +195,7 @@ def update(self):
         self.forecast_data = self._owm.forecast_data
 
 
-class WeatherData(object):
+class WeatherData:
     """Get the latest data from OpenWeatherMap."""
 
     def __init__(self, owm, latitude, longitude, mode):
diff --git a/homeassistant/components/weather/yweather.py b/homeassistant/components/weather/yweather.py
index f9befece5a4690..3f12195d6bfffc 100644
--- a/homeassistant/components/weather/yweather.py
+++ b/homeassistant/components/weather/yweather.py
@@ -175,7 +175,7 @@ def update(self):
             return
 
 
-class YahooWeatherData(object):
+class YahooWeatherData:
     """Handle the Yahoo! API object and limit updates."""
 
     def __init__(self, woeid, temp_unit):
diff --git a/homeassistant/components/zigbee.py b/homeassistant/components/zigbee.py
index 3a84e963841124..67bdf74425155c 100644
--- a/homeassistant/components/zigbee.py
+++ b/homeassistant/components/zigbee.py
@@ -124,7 +124,7 @@ def frame_is_relevant(entity, frame):
     return True
 
 
-class ZigBeeConfig(object):
+class ZigBeeConfig:
     """Handle the fetching of configuration from the config file."""
 
     def __init__(self, config):
diff --git a/homeassistant/core.py b/homeassistant/core.py
index dac16111de7800..947ab78b673b4d 100644
--- a/homeassistant/core.py
+++ b/homeassistant/core.py
@@ -116,7 +116,7 @@ def __str__(self) -> str:
         return self.value  # type: ignore
 
 
-class HomeAssistant(object):
+class HomeAssistant:
     """Root object of the Home Assistant home automation."""
 
     def __init__(self, loop=None):
@@ -347,7 +347,7 @@ def __str__(self):
         return self.value
 
 
-class Event(object):
+class Event:
     """Representation of an event within the bus."""
 
     __slots__ = ['event_type', 'data', 'origin', 'time_fired']
@@ -392,7 +392,7 @@ def __eq__(self, other):
                 self.time_fired == other.time_fired)
 
 
-class EventBus(object):
+class EventBus:
     """Allow the firing of and listening for events."""
 
     def __init__(self, hass: HomeAssistant) -> None:
@@ -547,7 +547,7 @@ def _async_remove_listener(self, event_type, listener):
             _LOGGER.warning("Unable to remove unknown listener %s", listener)
 
 
-class State(object):
+class State:
     """Object to represent a state within the state machine.
 
     entity_id: the entity that is represented.
@@ -654,7 +654,7 @@ def __repr__(self):
             dt_util.as_local(self.last_changed).isoformat())
 
 
-class StateMachine(object):
+class StateMachine:
     """Helper class that tracks the state of different entities."""
 
     def __init__(self, bus, loop):
@@ -787,7 +787,7 @@ def async_set(self, entity_id, new_state, attributes=None,
         })
 
 
-class Service(object):
+class Service:
     """Representation of a callable service."""
 
     __slots__ = ['func', 'schema', 'is_callback', 'is_coroutinefunction']
@@ -800,7 +800,7 @@ def __init__(self, func, schema):
         self.is_coroutinefunction = asyncio.iscoroutinefunction(func)
 
 
-class ServiceCall(object):
+class ServiceCall:
     """Representation of a call to a service."""
 
     __slots__ = ['domain', 'service', 'data', 'call_id']
@@ -821,7 +821,7 @@ def __repr__(self):
         return "<ServiceCall {}.{}>".format(self.domain, self.service)
 
 
-class ServiceRegistry(object):
+class ServiceRegistry:
     """Offer the services over the eventbus."""
 
     def __init__(self, hass):
@@ -1055,7 +1055,7 @@ def execute_service():
             _LOGGER.exception('Error executing service %s', service_call)
 
 
-class Config(object):
+class Config:
     """Configuration settings for Home Assistant."""
 
     def __init__(self):
diff --git a/homeassistant/helpers/entity.py b/homeassistant/helpers/entity.py
index 7dc5d2524eccbc..c7e88b210b3b87 100644
--- a/homeassistant/helpers/entity.py
+++ b/homeassistant/helpers/entity.py
@@ -56,7 +56,7 @@ def async_generate_entity_id(entity_id_format: str, name: Optional[str],
         entity_id_format.format(slugify(name)), current_ids)
 
 
-class Entity(object):
+class Entity:
     """An abstract class for Home Assistant entities."""
 
     # SAFE TO OVERWRITE
diff --git a/homeassistant/helpers/entity_component.py b/homeassistant/helpers/entity_component.py
index 4ac3a147296f5b..72b6ceecbfd44f 100644
--- a/homeassistant/helpers/entity_component.py
+++ b/homeassistant/helpers/entity_component.py
@@ -17,7 +17,7 @@
 DEFAULT_SCAN_INTERVAL = timedelta(seconds=15)
 
 
-class EntityComponent(object):
+class EntityComponent:
     """The EntityComponent manages platforms that manages entities.
 
     This class has the following responsibilities:
diff --git a/homeassistant/helpers/entity_platform.py b/homeassistant/helpers/entity_platform.py
index 472a88888d88f5..0847c116954bb2 100644
--- a/homeassistant/helpers/entity_platform.py
+++ b/homeassistant/helpers/entity_platform.py
@@ -15,7 +15,7 @@
 PLATFORM_NOT_READY_RETRIES = 10
 
 
-class EntityPlatform(object):
+class EntityPlatform:
     """Manage the entities for a single platform."""
 
     def __init__(self, *, hass, logger, domain, platform_name, platform,
diff --git a/homeassistant/helpers/entity_values.py b/homeassistant/helpers/entity_values.py
index 19980394d26d72..5caa6b93131f24 100644
--- a/homeassistant/helpers/entity_values.py
+++ b/homeassistant/helpers/entity_values.py
@@ -6,7 +6,7 @@
 from homeassistant.core import split_entity_id
 
 
-class EntityValues(object):
+class EntityValues:
     """Class to store entity id based values."""
 
     def __init__(self, exact=None, domain=None, glob=None):
diff --git a/homeassistant/helpers/state.py b/homeassistant/helpers/state.py
index 72deabaae2844d..b2360f3aca52cb 100644
--- a/homeassistant/helpers/state.py
+++ b/homeassistant/helpers/state.py
@@ -92,7 +92,7 @@
 }
 
 
-class AsyncTrackStates(object):
+class AsyncTrackStates:
     """
     Record the time when the with-block is entered.
 
diff --git a/homeassistant/helpers/template.py b/homeassistant/helpers/template.py
index f523726c388854..4d09416398b3ec 100644
--- a/homeassistant/helpers/template.py
+++ b/homeassistant/helpers/template.py
@@ -82,7 +82,7 @@ def extract_entities(template, variables=None):
     return MATCH_ALL
 
 
-class Template(object):
+class Template:
     """Class to hold a template and manage caching and rendering."""
 
     def __init__(self, template, hass=None):
@@ -198,7 +198,7 @@ def __eq__(self, other):
                 self.hass == other.hass)
 
 
-class AllStates(object):
+class AllStates:
     """Class to expose all HA states as attributes."""
 
     def __init__(self, hass):
@@ -226,7 +226,7 @@ def __call__(self, entity_id):
         return STATE_UNKNOWN if state is None else state.state
 
 
-class DomainStates(object):
+class DomainStates:
     """Class to expose a specific HA domain as attributes."""
 
     def __init__(self, hass, domain):
@@ -286,7 +286,7 @@ def _wrap_state(state):
     return None if state is None else TemplateState(state)
 
 
-class TemplateMethods(object):
+class TemplateMethods:
     """Class to expose helpers to templates."""
 
     def __init__(self, hass):
diff --git a/homeassistant/remote.py b/homeassistant/remote.py
index ae932b7d9554a6..b8e6a862b46d24 100644
--- a/homeassistant/remote.py
+++ b/homeassistant/remote.py
@@ -41,7 +41,7 @@ def __str__(self) -> str:
         return self.value  # type: ignore
 
 
-class API(object):
+class API:
     """Object to pass around Home Assistant API location and credentials."""
 
     def __init__(self, host: str, api_password: Optional[str] = None,
diff --git a/homeassistant/util/__init__.py b/homeassistant/util/__init__.py
index c52bfa584daa88..a1c0fb0024c695 100644
--- a/homeassistant/util/__init__.py
+++ b/homeassistant/util/__init__.py
@@ -236,7 +236,7 @@ def __eq__(self, other):
         return set(self) == set(other)
 
 
-class Throttle(object):
+class Throttle:
     """A class for throttling the execution of tasks.
 
     This method decorator adds a cooldown to a method to prevent it from being
diff --git a/homeassistant/util/logging.py b/homeassistant/util/logging.py
index 65999a3a5c74c8..7ce98fc2f2a2c4 100644
--- a/homeassistant/util/logging.py
+++ b/homeassistant/util/logging.py
@@ -22,7 +22,7 @@ def filter(self, record):
 
 
 # pylint: disable=invalid-name
-class AsyncHandler(object):
+class AsyncHandler:
     """Logging handler wrapper to add an async layer."""
 
     def __init__(self, loop, handler):
diff --git a/homeassistant/util/unit_system.py b/homeassistant/util/unit_system.py
index ec17c1b796b958..b8fb393a2f325a 100644
--- a/homeassistant/util/unit_system.py
+++ b/homeassistant/util/unit_system.py
@@ -62,7 +62,7 @@ def is_valid_unit(unit: str, unit_type: str) -> bool:
     return unit in units
 
 
-class UnitSystem(object):
+class UnitSystem:
     """A container for units of measure."""
 
     def __init__(self: object, name: str, temperature: str, length: str,
diff --git a/tests/common.py b/tests/common.py
index b03d473e6f32ee..3e8e813164e35a 100644
--- a/tests/common.py
+++ b/tests/common.py
@@ -355,7 +355,7 @@ def ensure_auth_manager_loaded(auth_mgr):
         store._users = OrderedDict()
 
 
-class MockModule(object):
+class MockModule:
     """Representation of a fake module."""
 
     # pylint: disable=invalid-name
@@ -391,7 +391,7 @@ def __init__(self, domain=None, dependencies=None, setup=None,
             self.async_unload_entry = async_unload_entry
 
 
-class MockPlatform(object):
+class MockPlatform:
     """Provide a fake platform."""
 
     # pylint: disable=invalid-name
diff --git a/tests/components/alexa/test_smart_home.py b/tests/components/alexa/test_smart_home.py
index afa4d19b5d91c2..ce4ec5aa146cb8 100644
--- a/tests/components/alexa/test_smart_home.py
+++ b/tests/components/alexa/test_smart_home.py
@@ -1225,7 +1225,7 @@ def reported_properties(hass, endpoint):
     return _ReportedProperties(msg['context']['properties'])
 
 
-class _ReportedProperties(object):
+class _ReportedProperties:
     def __init__(self, properties):
         self.properties = properties
 
diff --git a/tests/components/binary_sensor/test_ffmpeg.py b/tests/components/binary_sensor/test_ffmpeg.py
index aadafadd4a65aa..da9350008d865c 100644
--- a/tests/components/binary_sensor/test_ffmpeg.py
+++ b/tests/components/binary_sensor/test_ffmpeg.py
@@ -7,7 +7,7 @@
     get_test_home_assistant, assert_setup_component, mock_coro)
 
 
-class TestFFmpegNoiseSetup(object):
+class TestFFmpegNoiseSetup:
     """Test class for ffmpeg."""
 
     def setup_method(self):
@@ -72,7 +72,7 @@ def test_setup_component_start_callback(self, mock_ffmpeg):
         assert entity.state == 'on'
 
 
-class TestFFmpegMotionSetup(object):
+class TestFFmpegMotionSetup:
     """Test class for ffmpeg."""
 
     def setup_method(self):
diff --git a/tests/components/binary_sensor/test_workday.py b/tests/components/binary_sensor/test_workday.py
index af7e856e417502..893745ce3ded80 100644
--- a/tests/components/binary_sensor/test_workday.py
+++ b/tests/components/binary_sensor/test_workday.py
@@ -12,7 +12,7 @@
 FUNCTION_PATH = 'homeassistant.components.binary_sensor.workday.get_date'
 
 
-class TestWorkdaySetup(object):
+class TestWorkdaySetup:
     """Test class for workday sensor."""
 
     def setup_method(self):
diff --git a/tests/components/camera/test_init.py b/tests/components/camera/test_init.py
index d0f1425a595df0..cf902ca177901a 100644
--- a/tests/components/camera/test_init.py
+++ b/tests/components/camera/test_init.py
@@ -30,7 +30,7 @@ def mock_camera(hass):
         yield
 
 
-class TestSetupCamera(object):
+class TestSetupCamera:
     """Test class for setup camera."""
 
     def setup_method(self):
@@ -53,7 +53,7 @@ def test_setup_component(self):
             setup_component(self.hass, camera.DOMAIN, config)
 
 
-class TestGetImage(object):
+class TestGetImage:
     """Test class for camera."""
 
     def setup_method(self):
diff --git a/tests/components/device_tracker/test_upc_connect.py b/tests/components/device_tracker/test_upc_connect.py
index e45d70bc172d2f..6294ba3467a11f 100644
--- a/tests/components/device_tracker/test_upc_connect.py
+++ b/tests/components/device_tracker/test_upc_connect.py
@@ -33,7 +33,7 @@ def mock_load_config():
         yield
 
 
-class TestUPCConnect(object):
+class TestUPCConnect:
     """Tests for the Ddwrt device tracker platform."""
 
     def setup_method(self):
diff --git a/tests/components/image_processing/test_init.py b/tests/components/image_processing/test_init.py
index 628c5405eaa538..ab2e3be11d68a4 100644
--- a/tests/components/image_processing/test_init.py
+++ b/tests/components/image_processing/test_init.py
@@ -12,7 +12,7 @@
     get_test_home_assistant, get_test_instance_port, assert_setup_component)
 
 
-class TestSetupImageProcessing(object):
+class TestSetupImageProcessing:
     """Test class for setup image processing."""
 
     def setup_method(self):
@@ -48,7 +48,7 @@ def test_setup_component_with_service(self):
         assert self.hass.services.has_service(ip.DOMAIN, 'scan')
 
 
-class TestImageProcessing(object):
+class TestImageProcessing:
     """Test class for image processing."""
 
     def setup_method(self):
@@ -109,7 +109,7 @@ def test_get_image_without_exists_camera(self, mock_image):
         assert state.state == '0'
 
 
-class TestImageProcessingAlpr(object):
+class TestImageProcessingAlpr:
     """Test class for alpr image processing."""
 
     def setup_method(self):
@@ -211,7 +211,7 @@ def test_alpr_event_single_call_confidence(self, confidence_mock,
         assert event_data[0]['entity_id'] == 'image_processing.demo_alpr'
 
 
-class TestImageProcessingFace(object):
+class TestImageProcessingFace:
     """Test class for face image processing."""
 
     def setup_method(self):
diff --git a/tests/components/image_processing/test_microsoft_face_detect.py b/tests/components/image_processing/test_microsoft_face_detect.py
index b743dee97047e0..acc2519c9b722b 100644
--- a/tests/components/image_processing/test_microsoft_face_detect.py
+++ b/tests/components/image_processing/test_microsoft_face_detect.py
@@ -11,7 +11,7 @@
     get_test_home_assistant, assert_setup_component, load_fixture, mock_coro)
 
 
-class TestMicrosoftFaceDetectSetup(object):
+class TestMicrosoftFaceDetectSetup:
     """Test class for image processing."""
 
     def setup_method(self):
@@ -74,7 +74,7 @@ def test_setup_platform_name(self, store_mock):
         assert self.hass.states.get('image_processing.test_local')
 
 
-class TestMicrosoftFaceDetect(object):
+class TestMicrosoftFaceDetect:
     """Test class for image processing."""
 
     def setup_method(self):
diff --git a/tests/components/image_processing/test_microsoft_face_identify.py b/tests/components/image_processing/test_microsoft_face_identify.py
index c2ab5684ed0d7a..8797f661767eb2 100644
--- a/tests/components/image_processing/test_microsoft_face_identify.py
+++ b/tests/components/image_processing/test_microsoft_face_identify.py
@@ -11,7 +11,7 @@
     get_test_home_assistant, assert_setup_component, load_fixture, mock_coro)
 
 
-class TestMicrosoftFaceIdentifySetup(object):
+class TestMicrosoftFaceIdentifySetup:
     """Test class for image processing."""
 
     def setup_method(self):
@@ -75,7 +75,7 @@ def test_setup_platform_name(self, store_mock):
         assert self.hass.states.get('image_processing.test_local')
 
 
-class TestMicrosoftFaceIdentify(object):
+class TestMicrosoftFaceIdentify:
     """Test class for image processing."""
 
     def setup_method(self):
diff --git a/tests/components/image_processing/test_openalpr_cloud.py b/tests/components/image_processing/test_openalpr_cloud.py
index 50060e08a4b47d..65e735a6f7e01d 100644
--- a/tests/components/image_processing/test_openalpr_cloud.py
+++ b/tests/components/image_processing/test_openalpr_cloud.py
@@ -12,7 +12,7 @@
     get_test_home_assistant, assert_setup_component, load_fixture, mock_coro)
 
 
-class TestOpenAlprCloudSetup(object):
+class TestOpenAlprCloudSetup:
     """Test class for image processing."""
 
     def setup_method(self):
@@ -103,7 +103,7 @@ def test_setup_platform_without_region(self):
             setup_component(self.hass, ip.DOMAIN, config)
 
 
-class TestOpenAlprCloud(object):
+class TestOpenAlprCloud:
     """Test class for image processing."""
 
     def setup_method(self):
diff --git a/tests/components/image_processing/test_openalpr_local.py b/tests/components/image_processing/test_openalpr_local.py
index fc40f8e17fb50d..38e94166c5a983 100644
--- a/tests/components/image_processing/test_openalpr_local.py
+++ b/tests/components/image_processing/test_openalpr_local.py
@@ -26,7 +26,7 @@ def communicate(input=None):
     return async_popen
 
 
-class TestOpenAlprLocalSetup(object):
+class TestOpenAlprLocalSetup:
     """Test class for image processing."""
 
     def setup_method(self):
@@ -96,7 +96,7 @@ def test_setup_platform_without_region(self):
             setup_component(self.hass, ip.DOMAIN, config)
 
 
-class TestOpenAlprLocal(object):
+class TestOpenAlprLocal:
     """Test class for image processing."""
 
     def setup_method(self):
diff --git a/tests/components/media_player/test_blackbird.py b/tests/components/media_player/test_blackbird.py
index 7c85775949c982..550bfe88a61e8d 100644
--- a/tests/components/media_player/test_blackbird.py
+++ b/tests/components/media_player/test_blackbird.py
@@ -25,7 +25,7 @@ def __getattr__(self, item):
         return self[item]
 
 
-class MockBlackbird(object):
+class MockBlackbird:
     """Mock for pyblackbird object."""
 
     def __init__(self):
diff --git a/tests/components/media_player/test_monoprice.py b/tests/components/media_player/test_monoprice.py
index 399cdc67ca65e2..14e1769047a72b 100644
--- a/tests/components/media_player/test_monoprice.py
+++ b/tests/components/media_player/test_monoprice.py
@@ -27,7 +27,7 @@ def __getattr__(self, item):
         return self[item]
 
 
-class MockMonoprice(object):
+class MockMonoprice:
     """Mock for pymonoprice object."""
 
     def __init__(self):
diff --git a/tests/components/media_player/test_yamaha.py b/tests/components/media_player/test_yamaha.py
index e17241485db8b0..980284737a2b1e 100644
--- a/tests/components/media_player/test_yamaha.py
+++ b/tests/components/media_player/test_yamaha.py
@@ -15,7 +15,7 @@ def _create_zone_mock(name, url):
     return zone
 
 
-class FakeYamahaDevice(object):
+class FakeYamahaDevice:
     """A fake Yamaha device."""
 
     def __init__(self, ctrl_url, name, zones=None):
diff --git a/tests/components/notify/test_html5.py b/tests/components/notify/test_html5.py
index 318f3c7512ca70..486300679b7414 100644
--- a/tests/components/notify/test_html5.py
+++ b/tests/components/notify/test_html5.py
@@ -65,7 +65,7 @@ async def mock_client(hass, aiohttp_client, registrations=None):
     return await aiohttp_client(hass.http.app)
 
 
-class TestHtml5Notify(object):
+class TestHtml5Notify:
     """Tests for HTML5 notify platform."""
 
     def test_get_service_with_no_json(self):
diff --git a/tests/components/test_ffmpeg.py b/tests/components/test_ffmpeg.py
index 5a5fdffd5a3bb0..44c3a1dd69545a 100644
--- a/tests/components/test_ffmpeg.py
+++ b/tests/components/test_ffmpeg.py
@@ -38,7 +38,7 @@ def _async_stop_ffmpeg(self, entity_ids):
         self.called_entities = entity_ids
 
 
-class TestFFmpegSetup(object):
+class TestFFmpegSetup:
     """Test class for ffmpeg."""
 
     def setup_method(self):
diff --git a/tests/components/test_microsoft_face.py b/tests/components/test_microsoft_face.py
index 370059a0a095f5..92f840b8033d7f 100644
--- a/tests/components/test_microsoft_face.py
+++ b/tests/components/test_microsoft_face.py
@@ -9,7 +9,7 @@
     get_test_home_assistant, assert_setup_component, mock_coro, load_fixture)
 
 
-class TestMicrosoftFaceSetup(object):
+class TestMicrosoftFaceSetup:
     """Test the microsoft face component."""
 
     def setup_method(self):
diff --git a/tests/components/test_mqtt_eventstream.py b/tests/components/test_mqtt_eventstream.py
index 48bc04d46edfaf..389248179803fc 100644
--- a/tests/components/test_mqtt_eventstream.py
+++ b/tests/components/test_mqtt_eventstream.py
@@ -18,7 +18,7 @@
 )
 
 
-class TestMqttEventStream(object):
+class TestMqttEventStream:
     """Test the MQTT eventstream module."""
 
     def setup_method(self):
diff --git a/tests/components/test_mqtt_statestream.py b/tests/components/test_mqtt_statestream.py
index 2ed2f4487ea41c..4cf79e679cd470 100644
--- a/tests/components/test_mqtt_statestream.py
+++ b/tests/components/test_mqtt_statestream.py
@@ -12,7 +12,7 @@
 )
 
 
-class TestMqttStateStream(object):
+class TestMqttStateStream:
     """Test the MQTT statestream module."""
 
     def setup_method(self):
diff --git a/tests/components/test_plant.py b/tests/components/test_plant.py
index ee1372509d92d0..95167dd181b1cb 100644
--- a/tests/components/test_plant.py
+++ b/tests/components/test_plant.py
@@ -41,7 +41,7 @@
 }
 
 
-class _MockState(object):
+class _MockState:
 
     def __init__(self, state=None):
         self.state = state
diff --git a/tests/components/test_rest_command.py b/tests/components/test_rest_command.py
index 3ddcfae8c01b4e..097fb799d4028c 100644
--- a/tests/components/test_rest_command.py
+++ b/tests/components/test_rest_command.py
@@ -10,7 +10,7 @@
     get_test_home_assistant, assert_setup_component)
 
 
-class TestRestCommandSetup(object):
+class TestRestCommandSetup:
     """Test the rest command component."""
 
     def setup_method(self):
@@ -47,7 +47,7 @@ def test_setup_component_test_service(self):
         assert self.hass.services.has_service(rc.DOMAIN, 'test_get')
 
 
-class TestRestCommandComponent(object):
+class TestRestCommandComponent:
     """Test the rest command component."""
 
     def setup_method(self):
diff --git a/tests/components/tts/test_google.py b/tests/components/tts/test_google.py
index 6a2d2c65035413..cf9a7b2db295d2 100644
--- a/tests/components/tts/test_google.py
+++ b/tests/components/tts/test_google.py
@@ -15,7 +15,7 @@
 from .test_init import mutagen_mock  # noqa
 
 
-class TestTTSGooglePlatform(object):
+class TestTTSGooglePlatform:
     """Test the Google speech component."""
 
     def setup_method(self):
diff --git a/tests/components/tts/test_init.py b/tests/components/tts/test_init.py
index b6bfa430fd24f9..e8746ee762f6ae 100644
--- a/tests/components/tts/test_init.py
+++ b/tests/components/tts/test_init.py
@@ -29,7 +29,7 @@ def mutagen_mock():
         yield
 
 
-class TestTTS(object):
+class TestTTS:
     """Test the Google speech component."""
 
     def setup_method(self):
diff --git a/tests/components/tts/test_marytts.py b/tests/components/tts/test_marytts.py
index b55236c5e8eed1..7ec2ae39cd6103 100644
--- a/tests/components/tts/test_marytts.py
+++ b/tests/components/tts/test_marytts.py
@@ -14,7 +14,7 @@
 from .test_init import mutagen_mock  # noqa
 
 
-class TestTTSMaryTTSPlatform(object):
+class TestTTSMaryTTSPlatform:
     """Test the speech component."""
 
     def setup_method(self):
diff --git a/tests/components/tts/test_voicerss.py b/tests/components/tts/test_voicerss.py
index 2abdc0e69ff10d..365cf1ff73ba32 100644
--- a/tests/components/tts/test_voicerss.py
+++ b/tests/components/tts/test_voicerss.py
@@ -14,7 +14,7 @@
 from .test_init import mutagen_mock  # noqa
 
 
-class TestTTSVoiceRSSPlatform(object):
+class TestTTSVoiceRSSPlatform:
     """Test the voicerss speech component."""
 
     def setup_method(self):
diff --git a/tests/components/tts/test_yandextts.py b/tests/components/tts/test_yandextts.py
index 5b4ef4dcf5383d..82d203189287be 100644
--- a/tests/components/tts/test_yandextts.py
+++ b/tests/components/tts/test_yandextts.py
@@ -13,7 +13,7 @@
 from .test_init import mutagen_mock  # noqa
 
 
-class TestTTSYandexPlatform(object):
+class TestTTSYandexPlatform:
     """Test the speech component."""
 
     def setup_method(self):
diff --git a/tests/helpers/test_dispatcher.py b/tests/helpers/test_dispatcher.py
index 066e7386c6e281..55e67def2bc6c0 100644
--- a/tests/helpers/test_dispatcher.py
+++ b/tests/helpers/test_dispatcher.py
@@ -8,7 +8,7 @@
 from tests.common import get_test_home_assistant
 
 
-class TestHelpersDispatcher(object):
+class TestHelpersDispatcher:
     """Tests for discovery helper methods."""
 
     def setup_method(self, method):
diff --git a/tests/helpers/test_entity.py b/tests/helpers/test_entity.py
index 4211e3da31bdbe..4981ad23cc0080 100644
--- a/tests/helpers/test_entity.py
+++ b/tests/helpers/test_entity.py
@@ -71,7 +71,7 @@ def async_update_func():
     assert len(async_update) == 1
 
 
-class TestHelpersEntity(object):
+class TestHelpersEntity:
     """Test homeassistant.helpers.entity module."""
 
     def setup_method(self, method):
diff --git a/tests/util/test_init.py b/tests/util/test_init.py
index 60b0e68ca59b15..1f43c5a4b49b9d 100644
--- a/tests/util/test_init.py
+++ b/tests/util/test_init.py
@@ -221,7 +221,7 @@ def test_throttle2():
 
     def test_throttle_per_instance(self):
         """Test that the throttle method is done per instance of a class."""
-        class Tester(object):
+        class Tester:
             """A tester class for the throttle."""
 
             @util.Throttle(timedelta(seconds=1))
@@ -234,7 +234,7 @@ def hello(self):
 
     def test_throttle_on_method(self):
         """Test that throttle works when wrapping a method."""
-        class Tester(object):
+        class Tester:
             """A tester class for the throttle."""
 
             def hello(self):
@@ -249,7 +249,7 @@ def hello(self):
 
     def test_throttle_on_two_method(self):
         """Test that throttle works when wrapping two methods."""
-        class Tester(object):
+        class Tester:
             """A test class for the throttle."""
 
             @util.Throttle(timedelta(seconds=1))