•  download all videos by user id 下载指定用户的所有视频
• download all videos by playlist id 下载指定播放列表的所有视频
• skip the previously downloaded files 跳过已下载视频

Usage:

1. pip install rabbit–youtube
2. set google api key
3. ready to use:

   rabbit-youtube.py -u ChromeDevelopers /tmp/test/

for more details:  http://guoliang-dev.github.io/rabbit-youtube/