title: How to add tqdm to show progress bar when downloading you tube video with pytube?
body: <p>I am learning <code>pytube</code> to download Youtube video and tried <code>tqdm</code> on top of it to show progress bar but it shows various error and also I could not understand what is happening when I download video with <code>pytube</code> and showing progress bar which is the reason for me to not able to add <code>tqdm</code> in it.</p>
  
  <p>The code I have written with <code>pytube</code> runs well, this is the code:</p>
  
  <pre class="lang-py prettyprint-override"><code>from pytube import YouTube
  
  
  url = str(input("Enter the video link: "))
  yt = YouTube(url)
  videos = yt.streams.filter(file_extension='mp4').all()
  
  filename = yt.title
  
  
  s = 1
  for v in videos:
      print(str(s)+". "+str(v))
      s += 1
  
  n = int(input("Enter the number of the video: "))
  vid = videos[n-1]
  
  vid.download("C:/Users/user/Downloads/")
  
  print(yt.title,"\nHas been successfully downloaded")
  
  </code></pre>
  
  <p>I need <code>tqdm</code> to be added to the code to show a progress bar.</p>