subprocess.call('pip install -U yt-dlp' , shell=True)

with YoutubeDL({'quiet': True}) as ydl :
        res = ydl.extract_info(url , download=False)

ydl_opts = {'outtmpl': title + '.%(ext)s' , 'quiet' : True}
with YoutubeDL(ydl_opts) as ydl :
        ydl.download(url)

subprocess.call('ffmpeg -i ' + title + '.webm ' + title + '.mp4' , shell=True)