title: Get video information from a list of playlist with youtube-dl
body: <p>I'm tryng to get some informations from a list of playlists in youtube with youtube-dl. I've written this code but what it takes is not the video's informations but the playlist informations (e.g. the playlist title instead of the video title in the playlist). I can't understand why.</p>
  
  <pre><code>input_file = open("url")
  for video in input_file:
      print(video)
  ydl_opts = {
      'ignoreerrors': True
  }
      with youtube_dl.YoutubeDL(ydl_opts) as ydl: 
                  info_dict = ydl.extract_info(video, download=False)
                  for i in info_dict:
                      video_thumbnail = info_dict.get("thumbnail"),
                      video_id = info_dict.get("id"),
                      video_title = info_dict.get("title"),
                      video_description = info_dict.get("description"),
                      video_duration = info_dict.get("duration")
  </code></pre>
  
  <p>Any help will be appreciated.</p>