[docs,cleanup] Fix linter and misc cleanup

Closes #2419

yt_dlp/extractor/abc.py

@@ -300,7 +300,7 @@ class ABCIViewShowSeriesIE(InfoExtractor):
             unescapeHTML(webpage_data).encode('utf-8').decode('unicode_escape'), show_id)
         video_data = video_data['route']['pageData']['_embedded']
 
-        highlight = try_get(video_data, lambda x: ['highlightVideo']['shareUrl'])
+        highlight = try_get(video_data, lambda x: x['highlightVideo']['shareUrl'])
         if not self._yes_playlist(show_id, bool(highlight), video_label='highlight video'):
             return self.url_result(highlight, ie=ABCIViewIE.ie_key())
 

yt_dlp/extractor/archiveorg.py

@@ -440,7 +440,7 @@ class YoutubeWebArchiveIE(InfoExtractor):
         }, {
             'url': 'ytarchive:BaW_jenozKc:20050214000000',
             'only_matching': True
-        },{
+        }, {
             'url': 'ytarchive:BaW_jenozKc',
             'only_matching': True
         },

yt_dlp/extractor/litv.py

@@ -65,7 +65,7 @@ class LiTVIE(InfoExtractor):
         return self.playlist_result(all_episodes, content_id, episode_title)
 
     def _real_extract(self, url):
-        url, data = unsmuggle_url(url, {})
+        url, smuggled_data = unsmuggle_url(url, {})
 
         video_id = self._match_id(url)
 

yt_dlp/extractor/orf.py

@@ -22,7 +22,6 @@ from ..utils import (
     unified_strdate,
     unsmuggle_url,
     url_or_none,
-    urljoin,
 )