>>> yt = YouTube('http://youtube.com/watch?v=2lAe1cqCOXo')

​

 from pytube import Playlist

 pl = Playlist("https://www.youtube.com/watch?v=Edpy1szoG80&list=PL153hDY-y1E00uQtCVCVC8xJ25TYX8yPU")

 for video in pl.videos:

     video.streams.first().download()

​

 from pytube import Playlist

 ps = Playlist("https://www.youtube.com/watch?v=R6wQmWMDiB4&list=PLYmlEoSHldN4nV-Js4x7domjygiBkeatC")

 for video in ps.videos:

     video.streams.first().download()

>>> from pytube import YouTube

>>> YouTube('https://youtu.be/9bZkp7q19f0').streams.first().download()

>>> yt = YouTube('http://youtube.com/watch?v=9bZkp7q19f0')

>>> yt.streams

... .filter(progressive=True, file_extension='mp4')

... .order_by('resolution')

... .desc()

... .first()

... .download()

​

#here is a indept video 

#https://www.youtube.com/watch?v=vEQ8CXFWLZU&list=WL&index=3

​

from pytube import YouTube

from sys import argv

​

link=input("Video: ")

​

    argv.append(link)

    #[0] is the code for argv

    #[1] is the video you just inputed on the 7th line of code

    link=argv[1]

    youtube=YouTube(link)

    #here is you can experiment and see how to get costum definition

    you_download=youtube.streams.get_highest_resolution()

    #inside download choose a folder were you want to save said video

    you_download.download()

$ pip install pytube

​

>>> from pytube import YouTube

​