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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
it times out in python 3 for me
I'm just wondering why you would say it only works for 2.7? Change the xrange to range and <in John Maddon voice> boom, instant compatibility.
It's not cheating if tests are poorly written and allow things that shouldn't pass the tests to pass. You should raise an issue to the kata instead ;-)