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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.
Dang. Looking at the top solutions I realize now I could have just done all of this in list comprehension. Oh well, more practice with lambdas I guess :P
That's so slick! I was planning on using list comprehension myself but I couldn't figure out how to get past the empty strings left over from .split(). I'll definitely need to use this trick in the future. :) Great job!