[refactor] Do not specify redundant None as second argument in dict.get()

4 files changed, 10 insertions, 10 deletions

diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py
index 444d412d9..144d8c6b6 100644
--- a/youtube_dl/extractor/common.py
+++ b/youtube_dl/extractor/common.py
@@ -636,7 +636,7 @@ class InfoExtractor(object):
         downloader_params = self._downloader.params
 
         # Attempt to use provided username and password or .netrc data
-        if downloader_params.get('username', None) is not None:
+        if downloader_params.get('username') is not None:
             username = downloader_params['username']
             password = downloader_params['password']
         elif downloader_params.get('usenetrc', False):
@@ -663,7 +663,7 @@ class InfoExtractor(object):
             return None
         downloader_params = self._downloader.params
 
-        if downloader_params.get('twofactor', None) is not None:
+        if downloader_params.get('twofactor') is not None:
             return downloader_params['twofactor']
 
         return compat_getpass('Type %s and press [Return]: ' % note)
@@ -744,7 +744,7 @@ class InfoExtractor(object):
             'mature': 17,
             'restricted': 19,
         }
-        return RATING_TABLE.get(rating.lower(), None)
+        return RATING_TABLE.get(rating.lower())
 
     def _family_friendly_search(self, html):
         # See http://schema.org/VideoObject
@@ -759,7 +759,7 @@ class InfoExtractor(object):
             '0': 18,
             'false': 18,
         }
-        return RATING_TABLE.get(family_friendly.lower(), None)
+        return RATING_TABLE.get(family_friendly.lower())
 
     def _twitter_search_player(self, html):
         return self._html_search_meta('twitter:player', html,
diff --git a/youtube_dl/extractor/smotri.py b/youtube_dl/extractor/smotri.py
index 30210c8a3..015ef75f3 100644
--- a/youtube_dl/extractor/smotri.py
+++ b/youtube_dl/extractor/smotri.py
@@ -170,7 +170,7 @@ class SmotriIE(InfoExtractor):
             'getvideoinfo': '1',
         }
 
-        video_password = self._downloader.params.get('videopassword', None)
+        video_password = self._downloader.params.get('videopassword')
         if video_password:
             video_form['pass'] = hashlib.md5(video_password.encode('utf-8')).hexdigest()
 
@@ -356,7 +356,7 @@ class SmotriBroadcastIE(InfoExtractor):
 
         url = 'http://smotri.com/broadcast/view/url/?ticket=%s' % ticket
 
-        broadcast_password = self._downloader.params.get('videopassword', None)
+        broadcast_password = self._downloader.params.get('videopassword')
         if broadcast_password:
             url += '&pass=%s' % hashlib.md5(broadcast_password.encode('utf-8')).hexdigest()
 
diff --git a/youtube_dl/extractor/vimeo.py b/youtube_dl/extractor/vimeo.py
index 6a8f9b49d..c7df6b0c5 100644
--- a/youtube_dl/extractor/vimeo.py
+++ b/youtube_dl/extractor/vimeo.py
@@ -232,7 +232,7 @@ class VimeoIE(VimeoBaseInfoExtractor):
             return mobj.group(1)
 
     def _verify_video_password(self, url, video_id, webpage):
-        password = self._downloader.params.get('videopassword', None)
+        password = self._downloader.params.get('videopassword')
         if password is None:
             raise ExtractorError('This video is protected by a password, use the --video-password option', expected=True)
         token, vuid = self._extract_xsrft_and_vuid(webpage)
@@ -252,7 +252,7 @@ class VimeoIE(VimeoBaseInfoExtractor):
             'Verifying the password', 'Wrong password')
 
     def _verify_player_video_password(self, url, video_id):
-        password = self._downloader.params.get('videopassword', None)
+        password = self._downloader.params.get('videopassword')
         if password is None:
             raise ExtractorError('This video is protected by a password, use the --video-password option')
         data = urlencode_postdata(encode_dict({'password': password}))
@@ -516,7 +516,7 @@ class VimeoChannelIE(VimeoBaseInfoExtractor):
         if not login_form:
             return webpage
 
-        password = self._downloader.params.get('videopassword', None)
+        password = self._downloader.params.get('videopassword')
         if password is None:
             raise ExtractorError('This album is protected by a password, use the --video-password option', expected=True)
         fields = self._hidden_inputs(login_form)
diff --git a/youtube_dl/extractor/youku.py b/youtube_dl/extractor/youku.py
index 49687371a..5c1f84a09 100644
--- a/youtube_dl/extractor/youku.py
+++ b/youtube_dl/extractor/youku.py
@@ -214,7 +214,7 @@ class YoukuIE(InfoExtractor):
 
             return raw_data['data']
 
-        video_password = self._downloader.params.get('videopassword', None)
+        video_password = self._downloader.params.get('videopassword')
 
         # request basic data
         basic_data_url = "http://play.youku.com/play/get.json?vid=%s&ct=12" % video_id