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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.
Hrm, it works fine for me when I cast the zip object to a list, and actually I can't see why that wouldn't work -- there weren't any fundamental changes to zip() between 2 and 3 besides its return type.
It does not work in Python 3.
This solution no longer seems to work when I tested it. Returns error zip object not subscriptable. I tried adding in another list() around the zip but this didn't help. Not sure exactly what the problem is.