A Python library for downloading YouTube videos.
pytube is a lightweight, dependency-free Python library (and command-line utility) for downloading YouTube Videos.
A call for contributors
With pytube and python-lambda both continuing to gain momentum, I’m calling for contributors to help build out new features, review pull requests, fix bugs, and maintain overall code quality. If you’re interested, please email me at nficano[at]gmail.com.
YouTube is the most popular video-sharing platform in the world and as a hacker you may encounter a situation where you want to script something to download videos. For this I present to you pytube.
pytube is a lightweight library written in Python. It has no third party dependencies and aims to be highly reliable.
pytube makes zero assumptions, meaning there is no built-in method to get say the “best” quality video, pytube simply exposes all the available formats and resolutions, giving you the developer the power to define what “best” is.
pytube also makes pipelining easy, allowing you to specify callback functions for different download events, such as on progress or on complete.
Finally pytube also includes a command-line utility, allowing you to quickly download videos right from terminal.
Download using pip via pypi.
pip install pytube
from pytube import YouTube # not necessary, just for demo purposes. from pprint import pprint yt = YouTube("http://www.youtube.com/watch?v=Ik-RsDGPI5Y") # Once set, you can see all the codec and quality options YouTube has made # available for the particular video by printing videos. print(yt.get_videos()) # [<Video: MPEG-4 Visual (.3gp) - 144p>, # <Video: MPEG-4 Visual (.3gp) - 240p>, # <Video: Sorenson H.263 (.flv) - 240p>, # <Video: H.264 (.flv) - 360p>, # <Video: H.264 (.flv) - 480p>, # <Video: H.264 (.mp4) - 360p>, # <Video: H.264 (.mp4) - 720p>, # <Video: VP8 (.webm) - 360p>, # <Video: VP8 (.webm) - 480p>] # The filename is automatically generated based on the video title. You # can override this by manually setting the filename. # view the auto generated filename: print(yt.filename) # Pulp Fiction - Dancing Scene [HD] # set the filename: yt.set_filename('Dancing Scene from Pulp Fiction') # You can also filter the criteria by filetype. print(yt.filter('flv')) # [<Video: Sorenson H.263 (.flv) - 240p>, # <Video: H.264 (.flv) - 360p>, # <Video: H.264 (.flv) - 480p>] # Notice that the list is ordered by lowest resolution to highest. If you # wanted the highest resolution available for a specific file type, you # can simply do: print(yt.filter('mp4')[-1]) # <Video: H.264 (.mp4) - 720p> # You can also get all videos for a given resolution print(yt.filter(resolution='480p')) # [<Video: H.264 (.flv) - 480p>, # <Video: VP8 (.webm) - 480p>] # To select a video by a specific resolution and filetype you can use the get # method. video = yt.get('mp4', '720p') # NOTE: get() can only be used if and only if one object matches your criteria. # for example: print(yt.videos) #[<Video: MPEG-4 Visual (.3gp) - 144p>, # <Video: MPEG-4 Visual (.3gp) - 240p>, # <Video: Sorenson H.263 (.flv) - 240p>, # <Video: H.264 (.flv) - 360p>, # <Video: H.264 (.flv) - 480p>, # <Video: H.264 (.mp4) - 360p>, # <Video: H.264 (.mp4) - 720p>, # <Video: VP8 (.webm) - 360p>, # <Video: VP8 (.webm) - 480p>] # Since we have two H.264 (.mp4) available to us... now if we try to call get() # on mp4... video = yt.get('mp4') # MultipleObjectsReturned: 2 videos met criteria. # In this case, we'll need to specify both the codec (mp4) and resolution # (either 360p or 720p). # Okay, let's download it! (a destination directory is required) video.download('/tmp/')
You can download a video by simply passing the -e (or --extension=) switch and setting it to the desired filetype:
$ pytube -e mp4 http://www.youtube.com/watch?v=Ik-RsDGPI5Y
Same thing for specifying a resolution:
$ pytube -r 720p http://www.youtube.com/watch?v=Ik-RsDGPI5Y
When run without a resolution or extension, it shows a list of available formats to download
$ pytube http://www.youtube.com/watch?v=Ik-RsDGPI5Y Resolution Extension ---------------------------- 0 3gp 144p 1 3gp 240p 2 mp4 360p 3 mp4 720p 4 webm 360p Enter choice:
You can see a list of available formats by passing the -s (or --show-available) flag
$ pytube -s http://www.youtube.com/watch?v=Ik-RsDGPI5Y
You can also specify a download file path (-p or --path=):
$ pytube -e mp4 -p ~/Downloads/ http://www.youtube.com/watch?v=Ik-RsDGPI5Y
and/or optionally choose the filename (-f or --filename=):
$ pytube -e mp4 -f "Dancing Scene from Pulp Fiction" http://www.youtube.com/watch?v=Ik-RsDGPI5Y
Development of this happens on GitHub, patches including tests, documentation are very welcome, as well as bug reports and feature contributions are welcome! Also please open an issue if this tool does not function as you’d expect.
How to release updates
If this is the first time you’re releasing to pypi, you’ll need to run: pip install -r tests/dev_requirements.txt.
Once complete, execute the following commands:
$ git checkout master $ bumpversion [major|minor|patch] $ $ python setup.py sdist bdist_wheel upload $ $ bumpversion --no-tag patch $ git push origin master --tags
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