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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.
Lambda is an anynoums function. It is an antipattern assigning lambda function into a variable: https://www.python.org/dev/peps/pep-0008/#programming-recommendations
Not really best practice, since in this approach
ord('a') -1is computed for every char in string. Might be stored in some variable.It's a working solution, but pep8 will complain about undescriptive variable name.
As @eightyeightyeyes mentioned - it's not 'pythonic' way to shadow names like
str,idetc.This comment is hidden because it contains spoiler information about the solution