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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.
Ok, I see where is my problem. I wrote solution for Python3, where range() function returns range object. In python2 that function returns list. Thanks for help
how does this work? This function returns range object instead of list. Am I missing something?