diff --git a/homeassistant/components/eddystone_temperature/sensor.py b/homeassistant/components/eddystone_temperature/sensor.py
index 2084e307029..22d3533d32f 100644
--- a/homeassistant/components/eddystone_temperature/sensor.py
+++ b/homeassistant/components/eddystone_temperature/sensor.py
@@ -10,11 +10,7 @@ https://home-assistant.io/components/sensor.eddystone_temperature/
 import logging
 
 # pylint: disable=import-error
-from beacontools import (
-    BeaconScanner,
-    EddystoneFilter,
-    EddystoneTLMFrame,
-)
+from beacontools import BeaconScanner, EddystoneFilter, EddystoneTLMFrame
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA
diff --git a/homeassistant/components/efergy/sensor.py b/homeassistant/components/efergy/sensor.py
index 43c3b67457a..3be962fea2f 100644
--- a/homeassistant/components/efergy/sensor.py
+++ b/homeassistant/components/efergy/sensor.py
@@ -5,7 +5,7 @@ import requests
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA
-from homeassistant.const import CONF_CURRENCY, POWER_WATT, ENERGY_KILO_WATT_HOUR
+from homeassistant.const import CONF_CURRENCY, ENERGY_KILO_WATT_HOUR, POWER_WATT
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
diff --git a/homeassistant/components/elkm1/alarm_control_panel.py b/homeassistant/components/elkm1/alarm_control_panel.py
index 1e1a8eba9e0..de1cb62234c 100644
--- a/homeassistant/components/elkm1/alarm_control_panel.py
+++ b/homeassistant/components/elkm1/alarm_control_panel.py
@@ -3,8 +3,8 @@ from elkm1_lib.const import AlarmState, ArmedStatus, ArmLevel, ArmUpState
 import voluptuous as vol
 
 from homeassistant.components.alarm_control_panel import (
-    AlarmControlPanel,
     FORMAT_NUMBER,
+    AlarmControlPanel,
 )
 from homeassistant.components.alarm_control_panel.const import (
     SUPPORT_ALARM_ARM_AWAY,
@@ -29,13 +29,13 @@ from homeassistant.helpers.dispatcher import (
 )
 
 from . import (
-    create_elk_entities,
     DOMAIN,
-    ElkEntity,
     SERVICE_ALARM_ARM_HOME_INSTANT,
     SERVICE_ALARM_ARM_NIGHT_INSTANT,
     SERVICE_ALARM_ARM_VACATION,
     SERVICE_ALARM_DISPLAY_MESSAGE,
+    ElkEntity,
+    create_elk_entities,
 )
 
 SIGNAL_ARM_ENTITY = "elkm1_arm"
diff --git a/homeassistant/components/elv/__init__.py b/homeassistant/components/elv/__init__.py
index b6097737414..b776c7f5453 100644
--- a/homeassistant/components/elv/__init__.py
+++ b/homeassistant/components/elv/__init__.py
@@ -4,8 +4,8 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.helpers import discovery
 from homeassistant.const import CONF_DEVICE
+from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/elv/switch.py b/homeassistant/components/elv/switch.py
index 362424c7fac..a77d21cf173 100644
--- a/homeassistant/components/elv/switch.py
+++ b/homeassistant/components/elv/switch.py
@@ -4,7 +4,7 @@ import logging
 import pypca
 from serial import SerialException
 
-from homeassistant.components.switch import SwitchDevice, ATTR_CURRENT_POWER_W
+from homeassistant.components.switch import ATTR_CURRENT_POWER_W, SwitchDevice
 from homeassistant.const import EVENT_HOMEASSISTANT_STOP
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/emoncms/sensor.py b/homeassistant/components/emoncms/sensor.py
index 5f9d31697b8..34063e4c253 100644
--- a/homeassistant/components/emoncms/sensor.py
+++ b/homeassistant/components/emoncms/sensor.py
@@ -2,23 +2,23 @@
 from datetime import timedelta
 import logging
 
-import voluptuous as vol
 import requests
+import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
     CONF_API_KEY,
-    CONF_URL,
-    CONF_VALUE_TEMPLATE,
-    CONF_UNIT_OF_MEASUREMENT,
     CONF_ID,
     CONF_SCAN_INTERVAL,
-    STATE_UNKNOWN,
+    CONF_UNIT_OF_MEASUREMENT,
+    CONF_URL,
+    CONF_VALUE_TEMPLATE,
     POWER_WATT,
+    STATE_UNKNOWN,
 )
-from homeassistant.helpers.entity import Entity
 from homeassistant.helpers import template
+import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/emoncms_history/__init__.py b/homeassistant/components/emoncms_history/__init__.py
index 3b30a29960b..fd38da1cac1 100644
--- a/homeassistant/components/emoncms_history/__init__.py
+++ b/homeassistant/components/emoncms_history/__init__.py
@@ -1,20 +1,20 @@
 """Support for sending data to Emoncms."""
-import logging
 from datetime import timedelta
+import logging
 
 import requests
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
 from homeassistant.const import (
     CONF_API_KEY,
-    CONF_WHITELIST,
-    CONF_URL,
-    STATE_UNKNOWN,
-    STATE_UNAVAILABLE,
     CONF_SCAN_INTERVAL,
+    CONF_URL,
+    CONF_WHITELIST,
+    STATE_UNAVAILABLE,
+    STATE_UNKNOWN,
 )
 from homeassistant.helpers import state as state_helper
+import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.event import track_point_in_time
 from homeassistant.util import dt as dt_util
 
diff --git a/homeassistant/components/envirophat/sensor.py b/homeassistant/components/envirophat/sensor.py
index 2aaeefa48cf..ce1f154f911 100644
--- a/homeassistant/components/envirophat/sensor.py
+++ b/homeassistant/components/envirophat/sensor.py
@@ -1,12 +1,12 @@
 """Support for Enviro pHAT sensors."""
+from datetime import timedelta
 import importlib
 import logging
-from datetime import timedelta
 
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA
-from homeassistant.const import TEMP_CELSIUS, CONF_DISPLAY_OPTIONS, CONF_NAME
+from homeassistant.const import CONF_DISPLAY_OPTIONS, CONF_NAME, TEMP_CELSIUS
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
diff --git a/homeassistant/components/epson/media_player.py b/homeassistant/components/epson/media_player.py
index f3428602fad..b39722c39f3 100644
--- a/homeassistant/components/epson/media_player.py
+++ b/homeassistant/components/epson/media_player.py
@@ -1,8 +1,7 @@
 """Support for Epson projector."""
 import logging
 
-import voluptuous as vol
-
+import epson_projector as epson
 from epson_projector.const import (
     BACK,
     BUSY,
@@ -19,15 +18,15 @@ from epson_projector.const import (
     POWER,
     SOURCE,
     SOURCE_LIST,
-    TURN_ON,
     TURN_OFF,
-    VOLUME,
+    TURN_ON,
     VOL_DOWN,
     VOL_UP,
+    VOLUME,
 )
-import epson_projector as epson
+import voluptuous as vol
 
-from homeassistant.components.media_player import MediaPlayerDevice, PLATFORM_SCHEMA
+from homeassistant.components.media_player import PLATFORM_SCHEMA, MediaPlayerDevice
 from homeassistant.components.media_player.const import (
     SUPPORT_NEXT_TRACK,
     SUPPORT_PREVIOUS_TRACK,
@@ -48,6 +47,7 @@ from homeassistant.const import (
 )
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
+
 from .const import (
     ATTR_CMODE,
     DATA_EPSON,
diff --git a/tests/components/efergy/test_sensor.py b/tests/components/efergy/test_sensor.py
index cbba49d0ed0..18a00005dd5 100644
--- a/tests/components/efergy/test_sensor.py
+++ b/tests/components/efergy/test_sensor.py
@@ -5,7 +5,7 @@ import requests_mock
 
 from homeassistant.setup import setup_component
 
-from tests.common import load_fixture, get_test_home_assistant
+from tests.common import get_test_home_assistant, load_fixture
 
 token = "9p6QGJ7dpZfO3fqPTBk1fyEmjV1cGoLT"
 multi_sensor_token = "9r6QGF7dpZfO3fqPTBl1fyRmjV1cGoLT"