[alixander]

I'm not exactly sure if it doesn't work on Python3, I had only tested it on 2.7 so it mightt (there aren't any external dependencies). I'll probably test it on Python3 and safely include that in the supported versions soon.

[tschuy]

It wasn't too bad, looks like you had a couple of calls to xrange() (now just range()) and were using the result of a filter as a list. I've submitted a PR to add 3.4 support to it, and to add it to Travis.