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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.
I am sorry but I really think that that should be mentioned explicitly in the task decription.
urllib.parse is disabled in this kata, try to write your own algorithm.