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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.
vi mode mixes tabs and spaces, making writing python very hard due to indentation runtime errors. For example inserting a newline, the indent is spaces. Pressing the tab character inserts a tab character.