diff --git a/homeassistant/components/device_tracker/linksys_ap.py b/homeassistant/components/device_tracker/linksys_ap.py
index 29246f79fc5..fc8f9f96a37 100644
--- a/homeassistant/components/device_tracker/linksys_ap.py
+++ b/homeassistant/components/device_tracker/linksys_ap.py
@@ -14,11 +14,10 @@ import voluptuous as vol
 
 import homeassistant.helpers.config_validation as cv
 from homeassistant.components.device_tracker import DOMAIN, PLATFORM_SCHEMA
-from homeassistant.const import (CONF_HOST, CONF_PASSWORD, CONF_USERNAME,
-                                 CONF_VERIFY_SSL)
+from homeassistant.const import (
+    CONF_HOST, CONF_PASSWORD, CONF_USERNAME, CONF_VERIFY_SSL)
 from homeassistant.util import Throttle
 
-# Return cached results if last scan was less then this time ago.
 MIN_TIME_BETWEEN_SCANS = timedelta(seconds=5)
 INTERFACES = 2
 DEFAULT_TIMEOUT = 10
@@ -59,7 +58,7 @@ class LinksysAPDeviceScanner(object):
         # Check if the access point is accessible
         response = self._make_request()
         if not response.status_code == 200:
-            raise ConnectionError('Cannot connect to Linksys Access Point')
+            raise ConnectionError("Cannot connect to Linksys Access Point")
 
     def scan_devices(self):
         """Scan for new devices and return a list with found device IDs."""
@@ -83,7 +82,7 @@ class LinksysAPDeviceScanner(object):
         from bs4 import BeautifulSoup as BS
 
         with self.lock:
-            _LOGGER.info('Checking Linksys AP')
+            _LOGGER.info("Checking Linksys AP")
 
             self.last_results = []
             for interface in range(INTERFACES):
diff --git a/homeassistant/components/device_tracker/sky_hub.py b/homeassistant/components/device_tracker/sky_hub.py
index 9c61b47593e..647731d8485 100644
--- a/homeassistant/components/device_tracker/sky_hub.py
+++ b/homeassistant/components/device_tracker/sky_hub.py
@@ -1,10 +1,8 @@
 """
 Support for Sky Hub.
 
-# Example configuration.yaml entry
-device_tracker:
-  - platform: sky_hub
-    host: 192.168.1.254
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/device_tracker.sky_hub/
 """
 import logging
 import re
@@ -20,13 +18,11 @@ from homeassistant.components.device_tracker import (
 from homeassistant.const import CONF_HOST
 from homeassistant.util import Throttle
 
-# Return cached results if last scan was less then this time ago.
-MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
-
 _LOGGER = logging.getLogger(__name__)
-
 _MAC_REGEX = re.compile(r'(([0-9A-Fa-f]{1,2}\:){5}[0-9A-Fa-f]{1,2})')
 
+MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
+
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_HOST): cv.string
 })
@@ -45,7 +41,7 @@ class SkyHubDeviceScanner(DeviceScanner):
 
     def __init__(self, config):
         """Initialise the scanner."""
-        _LOGGER.info('Initialising Sky Hub')
+        _LOGGER.info("Initialising Sky Hub")
         self.host = config.get(CONF_HOST, '192.168.1.254')
 
         self.lock = threading.Lock()
@@ -86,7 +82,7 @@ class SkyHubDeviceScanner(DeviceScanner):
             return False
 
         with self.lock:
-            _LOGGER.info('Scanning')
+            _LOGGER.info("Scanning")
 
             data = _get_skyhub_data(self.url)
 
diff --git a/homeassistant/components/device_tracker/tado.py b/homeassistant/components/device_tracker/tado.py
index 5cb1f8fcbd2..9127ef4fad2 100644
--- a/homeassistant/components/device_tracker/tado.py
+++ b/homeassistant/components/device_tracker/tado.py
@@ -1,8 +1,8 @@
 """
 Support for Tado Smart Thermostat.
 
-Device tracker platform that supports presence detection.
-The detection is based on geofencing enabled devices used with Tado.
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/device_tracker.tado/
 """
 import logging
 from datetime import timedelta
@@ -17,15 +17,14 @@ import voluptuous as vol
 from homeassistant.const import CONF_USERNAME, CONF_PASSWORD
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
-from homeassistant.components.device_tracker import \
-    DOMAIN, PLATFORM_SCHEMA, DeviceScanner
+from homeassistant.components.device_tracker import (
+    DOMAIN, PLATFORM_SCHEMA, DeviceScanner)
 from homeassistant.helpers.aiohttp_client import async_create_clientsession
 
-# Return cached results if last scan was less then this time ago
-MIN_TIME_BETWEEN_SCANS = timedelta(seconds=30)
-
 _LOGGER = logging.getLogger(__name__)
 
+MIN_TIME_BETWEEN_SCANS = timedelta(seconds=30)
+
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Required(CONF_PASSWORD): cv.string,
     vol.Required(CONF_USERNAME): cv.string
diff --git a/homeassistant/components/light/avion.py b/homeassistant/components/light/avion.py
index 4a53697ccf4..929b2bc33ac 100644
--- a/homeassistant/components/light/avion.py
+++ b/homeassistant/components/light/avion.py
@@ -55,7 +55,7 @@ class AvionLight(Light):
 
         self._name = device['name']
         self._address = device['address']
-        self._key = device["key"]
+        self._key = device['key']
         self._brightness = 255
         self._state = False
         self._switch = avion.avion(self._address, self._key)
diff --git a/homeassistant/components/lutron.py b/homeassistant/components/lutron.py
index 0c9458ff3f6..d5512e9e5b6 100644
--- a/homeassistant/components/lutron.py
+++ b/homeassistant/components/lutron.py
@@ -1,9 +1,9 @@
 """
 Component for interacting with a Lutron RadioRA 2 system.
 
-Uses pylutron (http://github.com/thecynic/pylutron).
+For more details about this component, please refer to the documentation at
+https://home-assistant.io/components/lutron/
 """
-
 import logging
 
 from homeassistant.helpers import discovery
@@ -13,7 +13,7 @@ from homeassistant.loader import get_component
 REQUIREMENTS = ['https://github.com/thecynic/pylutron/archive/v0.1.0.zip#'
                 'pylutron==0.1.0']
 
-DOMAIN = "lutron"
+DOMAIN = 'lutron'
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -38,7 +38,7 @@ def setup(hass, base_config):
     )
     hass.data[LUTRON_CONTROLLER].load_xml_db()
     hass.data[LUTRON_CONTROLLER].connect()
-    _LOGGER.info("Connected to Main Repeater @ %s", config['lutron_host'])
+    _LOGGER.info("Connected to Main Repeater at %s", config['lutron_host'])
 
     group = get_component('group')
 
diff --git a/homeassistant/components/notify/discord.py b/homeassistant/components/notify/discord.py
index 34fb2a1770a..e6c4b3bad96 100644
--- a/homeassistant/components/notify/discord.py
+++ b/homeassistant/components/notify/discord.py
@@ -1,4 +1,9 @@
-"""Discord platform for notify component."""
+"""
+Discord platform for notify component.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/notify.discord/
+"""
 import logging
 import asyncio
 import voluptuous as vol
diff --git a/homeassistant/components/sensor/wsdot.py b/homeassistant/components/sensor/wsdot.py
index a3230a88eb3..fecff260716 100644
--- a/homeassistant/components/sensor/wsdot.py
+++ b/homeassistant/components/sensor/wsdot.py
@@ -1,7 +1,8 @@
 """
 Support for Washington State Department of Transportation (WSDOT) data.
 
-Data provided by WSDOT is documented at http://wsdot.com/traffic/api/
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/sensor.wsdot/
 """
 import logging
 import re
@@ -17,7 +18,6 @@ from homeassistant.const import (
 from homeassistant.helpers.entity import Entity
 import homeassistant.helpers.config_validation as cv
 
-
 _LOGGER = logging.getLogger(__name__)
 
 CONF_TRAVEL_TIMES = 'travel_time'
@@ -109,7 +109,7 @@ class WashingtonStateTravelTimeSensor(WashingtonStateTransportSensor):
 
         response = requests.get(self.RESOURCE, params, timeout=10)
         if response.status_code != 200:
-            _LOGGER.warning('Invalid response from WSDOT API.')
+            _LOGGER.warning("Invalid response from WSDOT API")
         else:
             self._data = response.json()
         self._state = self._data.get(ATTR_CURRENT_TIME)
diff --git a/homeassistant/components/tts/amazon_polly.py b/homeassistant/components/tts/amazon_polly.py
index fe63d72b632..e40c10f5e14 100644
--- a/homeassistant/components/tts/amazon_polly.py
+++ b/homeassistant/components/tts/amazon_polly.py
@@ -2,7 +2,7 @@
 Support for the Amazon Polly text to speech service.
 
 For more details about this component, please refer to the documentation at
-https://home-assistant.io/components/tts/amazon_polly/
+https://home-assistant.io/components/tts.amazon_polly/
 """
 import logging
 import voluptuous as vol
diff --git a/homeassistant/components/zabbix.py b/homeassistant/components/zabbix.py
index 3418bad6c9c..adbf34a474c 100644
--- a/homeassistant/components/zabbix.py
+++ b/homeassistant/components/zabbix.py
@@ -18,7 +18,7 @@ REQUIREMENTS = ['pyzabbix==0.7.4']
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_SSL = False
-DEFAULT_PATH = "zabbix"
+DEFAULT_PATH = 'zabbix'
 
 DOMAIN = 'zabbix'