import pytube

url="https://www.youtube.com/playlist?list=PL7yh-TELLS1FDEQmmfzwSKOqFMEPLtz6_"

playlist = pytube.Playlist(url)
print(playlist)
for url in playlist:
    video = pytube.YouTube(url)
    stream = video.streams.get_by_itag(22)
    stream.download()
print("Done")