B
import youtube_dl
video_url = "some_url"
max_filesize = "file_size"
ydl_opts = {'outtmpl': name.mp4,
'preferredcodec': 'mp4',
'max_filesize': max_filesize}
with youtube_dl.YoutubeDL(ydl_opts) as ydl:
ydl.extract_info(video_url)
