What would be this encoding's name?

smb://nas/music/_lib/v/voivod/voivod-rrr%C3%B6%C3%B6%C3%B6aaarrr/01%20-%20voivod%20-%20rrr%C3%B6%C3%B6%C3%B6aaarrr%20-%20korg%C3%BCll_the_exterminator.mp3

I would like to convert such string to unicode using Python.  How would I do that?
That's URL-encoded UTF-8. URL-decode it, then decode it as UTF-8.
unknown encoding to unicode