Download all youtube favorites with youtube-dl script

[Bill]

I have been using the script youtube-dl http://rg3.github.io/youtube-dl/

And I was wondering if there is a way to download all of a user's 
favorites or uploads.

The script has a functionality to download all videos in a txt file. So 
if there is a way using the youtube API or JSON (none of which I am 
familiar with) to bring up a list of all these videos then it'd be a 
simple case putting these urls into a file.

The problem is youtube displays favorites or user uploads in pages or 
infinite scroll. So it is difficult to access them by the BeautifulSoup 
module.


What do you suggest?