Modified code to account for extractors that do not specify field names.

youtube_dl/extractor/common.py

@@ -968,11 +968,17 @@ class InfoExtractor(object):
             urls, playlist_id=playlist_id, playlist_title=playlist_title)
 
     @staticmethod
-    def playlist_result(entries, **kwargs):
+    def playlist_result(entries, playlist_id=None, playlist_title=None, playlist_description=None, **kwargs):
         """Returns a playlist"""
         video_info = {'_type': 'playlist',
-                      'entries': entries,
-                      **kwargs}
+                      'entries': entries}
+        video_info.update(kwargs)
+        if playlist_id:
+            video_info['id'] = playlist_id
+        if playlist_title:
+            video_info['title'] = playlist_title
+        if playlist_description is not None:
+            video_info['description'] = playlist_description
         return video_info
 
     def _search_regex(self, pattern, string, name, default=NO_DEFAULT, fatal=True, flags=0, group=None):

youtube_dl/extractor/youtube.py

@@ -2806,8 +2806,8 @@ class YoutubeTabIE(YoutubeBaseInfoExtractor):
             self._entries(selected_tab, item_id, webpage),
             playlist_id=playlist_id, playlist_title=title,
             playlist_description=description,
-            playlist_view_count=view_count,
-            playlist_last_update=last_updated)
+            view_count=view_count,
+            last_update=last_updated)
         playlist.update(self._extract_uploader(data))
         return playlist