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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.
fixed by latest fork
Approved
python new test framework is required. updated in this fork
Nice! How do you bench such things? Can you give an indstruction on how you did this particular case?
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Good kata
Thanks, very nice kata. I learned something new.
Noicee kata!
you're actually returning a new string object here, while the problem description is asking you to return the same string in a mutated form.
You can simply add '!' to do that.
Nice solution though!
God bless Stephen Cole Kleene, the inventor of regular expressions!
The parameter name has the same name as a built-in library in Python.
Nice.Everyday I get more proof that regular expressions are really powerful.
Your check for validity is allowing non-strings, which cause problems in the random tests.
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