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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.
The square brackets are actually unnecessary here, without the square brackets you would have what's called a generator expression which works as an iterator on its own. The square brackets are only required when you need to use list functionality, for instance len().
Just thought I'd tell you because I also did this for quite some time before I learned that you can go without it.
I suppose numpy magic improves performance.
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I get this error when trying to submit. Server side.
File "", line 42
secret1 = "whatisup"
^
SyntaxError: invalid syntax
I cannot make it work with python3....