Loading collection data...
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.
Hey! Your code looks pretty nice, but it could use for more whitespace (e.g. around operators) to make it more readable.
Eval is probably inadvisable because it puts a pretty bad security issue in your code.
Get rid of the [], you don't need them, sum() can take a generator expression, which improves speed by not pointlessly generating a list.
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