+ if not video_info:
+ unavailable_message = extract_unavailable_message()
+ if not unavailable_message:
+ unavailable_message = 'Unable to extract video data'
+ raise ExtractorError(
+ 'YouTube said: %s' % unavailable_message, expected=True, video_id=video_id)
+
+ token = video_info.get('token') or video_info.get('account_playback_token')
+ if not token: