fix bug from #245

youtube_dlc/extractor/youtube.py

@@ -3257,7 +3257,7 @@ class YoutubeTabIE(YoutubeBaseInfoExtractor):
         video_id = qs.get('v', [None])[0]
         playlist_id = qs.get('list', [None])[0]
 
-        if is_home.group('not_channel') is not None and is_home.group('not_channel').startswith('watch') and not video_id:
+        if is_home is not None and is_home.group('not_channel') is not None and is_home.group('not_channel').startswith('watch') and not video_id:
             if playlist_id:
                 self._downloader.report_warning('%s is not a valid Youtube URL. Trying to download playlist %s' % (url, playlist_id))
                 url = 'https://www.youtube.com/playlist?list=%s' % playlist_id