Python API for YouTube - Download videos and retrieve metadata from YouTube.

- Retreive metadata such as viewcount, duration, rating, author, thumbnail, etc 
- Download video or audio at requested resolution / bitrate / format / filesize
- Command line tool (ytdl) for downloading directly from the command line
- Retrieve the URL to stream the video in a player such as vlc or mplayer
- Works with age-restricted videos and non-embeddable videos
- Small, standalone, single importable module file (pafy.py)
- Select highest quality stream for download or streaming
- Download audio only (no video) in ogg or m4a format
- Download video only (no audio) in m4v format