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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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It does not. In fact, this is not even necessary - you can just do
for age, handicap in data.The (x, y) syntax in these sort of loops will perform tuple unpacking.
This is same sort of syntax as:
a, b = [1, 2], or(a, b) = [1, 2].because you're not supposed to use it in a list comprehension! That's all the purpose of it.