This tutorial will help you download youtube video or audio with python using pafy library. Pafy library is used to retrieve YouTube content and metadata.
Features of Pafy
(i) Retrieve metadata such as viewcount, duration, rating, author, thumbnail, keywords.
(ii) Download video or audio at requested resolution / bitrate / format / filesize
(iii) Command line tool (ytdl) for downloading directly from the command line
(iv) Download video only (no audio) in m4v or webm format
(v) Download audio only (no video) in ogg or m4a format
(vi) Works with Python 2.6+ and 3.3+
(vii) Optionally depends on youtube-dl (recommended; more stable)
Installation
virtualenv venv pip install pafy
Library Imported
import pafy
Example1:
Retrieve metadata such as viewcount, duration, rating, author, description.
import pafy # url of video # instant created video = pafy.new(url) # print title print(video.title) # print rating print(video.rating) # print viewcount print(video.viewcount) # print author & video length print(video.author, video.length) # print duration, likes, dislikes & description print(video.duration, video.likes, video.dislikes, video.description) |
Output:
Dynamic Programming | Set 3 (Longest Increasing Subsequence) | Lazyroar 4.30275249481 57739 Lazyroar 396 00:06:36 180 38 Explanation for the article: https://www.geeksforgeeks.org/dynamic-programming-set-3-longest-increasing-subsequence/
Example2:
Download best resolution video regardless of extension
import pafy video = pafy.new(url) streams = video.streams for i in streams: print(i) # get best resolution regardless of format best = video.getbest() print(best.resolution, best.extension) # Download the video best.download() |
Output:
normal:3gp@176x144 normal:3gp@320x180 normal:webm@640x360 normal:mp4@640x360 normal:mp4@1280x720 1280x720 mp4 25, 707, 969 Bytes [100.00%] received. Rate: [ 506 KB/s]. ETA: [0 secs]
Example3:
Download video of a particular format specified (let say .3gp)
import pafy video = pafy.new(url) streams = video.streams for i in streams: print(i) # get best resolution of a specific format # set format out of(mp4, webm, flv or 3gp) best = video.getbest(preftype ="3gp") best.download() |
Output:
normal:3gp@176x144 normal:3gp@320x180 normal:webm@640x360 normal:mp4@640x360 normal:mp4@1280x720 6, 049, 643 Bytes [100.00%] received. Rate: [ 241 KB/s]. ETA: [0 secs]
Example4:
Download a specific format audio.
import pafy video = pafy.new(url) audiostreams = video.audiostreams for i in audiostreams: print(i.bitrate, i.extension, i.get_filesize()) audiostreams[3].download() |
Output:
160k webm 1365668 160k webm 1811815 160k m4a 3470205 160k webm 3301003 160k webm 3588746
Example5:
Download the bestaudio
import pafy video = pafy.new(url) bestaudio = video.getbestaudio() bestaudio.download() |
Output:
References:
https://pypi.python.org/pypi/pafy
