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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.
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The Python test suite used the standard library function randint() without importing it. Please fix it.
Move the explanation from code area to text area (i.e. "as follows: ...". It's confusing especially since "as" is a python keyword.