diff --git a/homeassistant/components/mqtt/__init__.py b/homeassistant/components/mqtt/__init__.py
index ad9166e2410..d8dc584ae30 100644
--- a/homeassistant/components/mqtt/__init__.py
+++ b/homeassistant/components/mqtt/__init__.py
@@ -1,6 +1,5 @@
 """Support for MQTT message handling."""
 import asyncio
-import sys
 from functools import partial, wraps
 import inspect
 from itertools import groupby
@@ -10,6 +9,7 @@ from operator import attrgetter
 import os
 import socket
 import ssl
+import sys
 import time
 from typing import Any, Callable, List, Optional, Union
 
@@ -32,9 +32,9 @@ from homeassistant.const import (
 )
 from homeassistant.core import Event, ServiceCall, callback
 from homeassistant.exceptions import (
+    ConfigEntryNotReady,
     HomeAssistantError,
     Unauthorized,
-    ConfigEntryNotReady,
 )
 from homeassistant.helpers import config_validation as cv, template
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
@@ -47,16 +47,16 @@ from homeassistant.util.logging import catch_log_exception
 # Loading the config flow file will register the flow
 from . import config_flow, discovery, server  # noqa: F401 pylint: disable=unused-import
 from .const import (
+    ATTR_DISCOVERY_HASH,
     CONF_BROKER,
     CONF_DISCOVERY,
-    DEFAULT_DISCOVERY,
     CONF_STATE_TOPIC,
-    ATTR_DISCOVERY_HASH,
-    PROTOCOL_311,
+    DEFAULT_DISCOVERY,
     DEFAULT_QOS,
+    PROTOCOL_311,
 )
 from .discovery import MQTT_DISCOVERY_UPDATED, clear_discovery_hash
-from .models import PublishPayloadType, Message, MessageCallbackType
+from .models import Message, MessageCallbackType, PublishPayloadType
 from .subscription import async_subscribe_topics, async_unsubscribe_topics
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/mqtt/camera.py b/homeassistant/components/mqtt/camera.py
index f3ae36c5746..831c47c3621 100644
--- a/homeassistant/components/mqtt/camera.py
+++ b/homeassistant/components/mqtt/camera.py
@@ -7,7 +7,7 @@ import voluptuous as vol
 
 from homeassistant.components import camera, mqtt
 from homeassistant.components.camera import PLATFORM_SCHEMA, Camera
-from homeassistant.const import CONF_NAME, CONF_DEVICE
+from homeassistant.const import CONF_DEVICE, CONF_NAME
 from homeassistant.core import callback
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
diff --git a/homeassistant/components/mqtt/climate.py b/homeassistant/components/mqtt/climate.py
index 9b46057a414..a51590e0b59 100644
--- a/homeassistant/components/mqtt/climate.py
+++ b/homeassistant/components/mqtt/climate.py
@@ -20,14 +20,14 @@ from homeassistant.components.climate.const import (
     HVAC_MODE_FAN_ONLY,
     HVAC_MODE_HEAT,
     HVAC_MODE_OFF,
+    PRESET_AWAY,
+    PRESET_NONE,
     SUPPORT_AUX_HEAT,
     SUPPORT_FAN_MODE,
     SUPPORT_PRESET_MODE,
     SUPPORT_SWING_MODE,
     SUPPORT_TARGET_TEMPERATURE,
-    PRESET_AWAY,
     SUPPORT_TARGET_TEMPERATURE_RANGE,
-    PRESET_NONE,
 )
 from homeassistant.components.fan import SPEED_HIGH, SPEED_LOW, SPEED_MEDIUM
 from homeassistant.const import (
diff --git a/homeassistant/components/mqtt/device_tracker.py b/homeassistant/components/mqtt/device_tracker.py
index d25d7ce21d3..bcc969f0354 100644
--- a/homeassistant/components/mqtt/device_tracker.py
+++ b/homeassistant/components/mqtt/device_tracker.py
@@ -5,9 +5,9 @@ import voluptuous as vol
 
 from homeassistant.components import mqtt
 from homeassistant.components.device_tracker import PLATFORM_SCHEMA, SOURCE_TYPES
+from homeassistant.const import CONF_DEVICES, STATE_HOME, STATE_NOT_HOME
 from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
-from homeassistant.const import CONF_DEVICES, STATE_NOT_HOME, STATE_HOME
 
 from . import CONF_QOS
 
diff --git a/homeassistant/components/mqtt/models.py b/homeassistant/components/mqtt/models.py
index 46aaa23732f..cfdecd3383d 100644
--- a/homeassistant/components/mqtt/models.py
+++ b/homeassistant/components/mqtt/models.py
@@ -1,5 +1,5 @@
 """Modesl used by multiple MQTT modules."""
-from typing import Union, Callable
+from typing import Callable, Union
 
 import attr
 
diff --git a/tests/components/mqtt/test_binary_sensor.py b/tests/components/mqtt/test_binary_sensor.py
index 28f1a7e9720..3e8f342ea94 100644
--- a/tests/components/mqtt/test_binary_sensor.py
+++ b/tests/components/mqtt/test_binary_sensor.py
@@ -1,7 +1,6 @@
 """The tests for the  MQTT binary sensor platform."""
 from datetime import datetime, timedelta
 import json
-
 from unittest.mock import ANY, patch
 
 from homeassistant.components import binary_sensor, mqtt
diff --git a/tests/components/mqtt/test_camera.py b/tests/components/mqtt/test_camera.py
index 70b5e941fe3..0e7d8ada759 100644
--- a/tests/components/mqtt/test_camera.py
+++ b/tests/components/mqtt/test_camera.py
@@ -1,6 +1,6 @@
 """The tests for mqtt camera component."""
-from unittest.mock import ANY
 import json
+from unittest.mock import ANY
 
 from homeassistant.components import camera, mqtt
 from homeassistant.components.mqtt.discovery import async_start
diff --git a/tests/components/mqtt/test_climate.py b/tests/components/mqtt/test_climate.py
index 648448a6494..2db368d0311 100644
--- a/tests/components/mqtt/test_climate.py
+++ b/tests/components/mqtt/test_climate.py
@@ -11,19 +11,19 @@ from homeassistant.components import mqtt
 from homeassistant.components.climate import DEFAULT_MAX_TEMP, DEFAULT_MIN_TEMP
 from homeassistant.components.climate.const import (
     DOMAIN as CLIMATE_DOMAIN,
-    SUPPORT_AUX_HEAT,
-    SUPPORT_PRESET_MODE,
-    SUPPORT_FAN_MODE,
-    SUPPORT_SWING_MODE,
-    SUPPORT_TARGET_TEMPERATURE,
     HVAC_MODE_AUTO,
     HVAC_MODE_COOL,
-    HVAC_MODE_HEAT,
     HVAC_MODE_DRY,
     HVAC_MODE_FAN_ONLY,
-    SUPPORT_TARGET_TEMPERATURE_RANGE,
-    PRESET_NONE,
+    HVAC_MODE_HEAT,
     PRESET_ECO,
+    PRESET_NONE,
+    SUPPORT_AUX_HEAT,
+    SUPPORT_FAN_MODE,
+    SUPPORT_PRESET_MODE,
+    SUPPORT_SWING_MODE,
+    SUPPORT_TARGET_TEMPERATURE,
+    SUPPORT_TARGET_TEMPERATURE_RANGE,
 )
 from homeassistant.components.mqtt.discovery import async_start
 from homeassistant.const import STATE_OFF, STATE_UNAVAILABLE
diff --git a/tests/components/mqtt/test_cover.py b/tests/components/mqtt/test_cover.py
index bb734d2c03d..b15518961a4 100644
--- a/tests/components/mqtt/test_cover.py
+++ b/tests/components/mqtt/test_cover.py
@@ -16,11 +16,11 @@ from homeassistant.const import (
     SERVICE_SET_COVER_POSITION,
     SERVICE_SET_COVER_TILT_POSITION,
     SERVICE_STOP_COVER,
+    SERVICE_TOGGLE,
+    SERVICE_TOGGLE_COVER_TILT,
     STATE_CLOSED,
     STATE_OPEN,
     STATE_UNAVAILABLE,
-    SERVICE_TOGGLE,
-    SERVICE_TOGGLE_COVER_TILT,
     STATE_UNKNOWN,
 )
 from homeassistant.setup import async_setup_component
diff --git a/tests/components/mqtt/test_discovery.py b/tests/components/mqtt/test_discovery.py
index 860ef52a98a..2b6c65b919e 100644
--- a/tests/components/mqtt/test_discovery.py
+++ b/tests/components/mqtt/test_discovery.py
@@ -1,7 +1,6 @@
 """The tests for the MQTT discovery."""
 from pathlib import Path
 import re
-
 from unittest.mock import patch
 
 from homeassistant.components import mqtt
diff --git a/tests/components/mqtt/test_init.py b/tests/components/mqtt/test_init.py
index 6f2a87d1caa..3d8e261fdb2 100644
--- a/tests/components/mqtt/test_init.py
+++ b/tests/components/mqtt/test_init.py
@@ -15,8 +15,8 @@ from homeassistant.const import (
     EVENT_HOMEASSISTANT_STOP,
 )
 from homeassistant.core import callback
-from homeassistant.setup import async_setup_component
 from homeassistant.exceptions import ConfigEntryNotReady
+from homeassistant.setup import async_setup_component
 
 from tests.common import (
     MockConfigEntry,
diff --git a/tests/components/mqtt/test_sensor.py b/tests/components/mqtt/test_sensor.py
index cd55a08482d..4e8e5f9bfd0 100644
--- a/tests/components/mqtt/test_sensor.py
+++ b/tests/components/mqtt/test_sensor.py
@@ -14,8 +14,8 @@ import homeassistant.util.dt as dt_util
 from tests.common import (
     MockConfigEntry,
     async_fire_mqtt_message,
-    async_mock_mqtt_component,
     async_fire_time_changed,
+    async_mock_mqtt_component,
     mock_registry,
 )
 
diff --git a/tests/components/mqtt/test_state_vacuum.py b/tests/components/mqtt/test_state_vacuum.py
index 7919e07767d..eb3071eb120 100644
--- a/tests/components/mqtt/test_state_vacuum.py
+++ b/tests/components/mqtt/test_state_vacuum.py
@@ -26,9 +26,9 @@ from homeassistant.components.vacuum import (
 from homeassistant.const import (
     CONF_NAME,
     CONF_PLATFORM,
+    ENTITY_MATCH_ALL,
     STATE_UNAVAILABLE,
     STATE_UNKNOWN,
-    ENTITY_MATCH_ALL,
 )
 from homeassistant.setup import async_setup_component