iTunes URL to podcast RSS URL

Python library to obtain RSS feed URL from iTunes link

Usage

extract_feed_url(url)

example:

extract_feed_url('https://itunes.apple.com/us/podcast/digitalculture.la/id533614895?mt=2&ign-mpt=uo%3D4')

should return http://feeds.soundcloud.com/users/soundcloud:users:11019408/sounds.rss