Web Reference: Codewars is where developers achieve code mastery through challenge. Train on kata in the dojo and reach your highest potential. Testing 1-2-3 Your team is writing a fancy new text editor and you've been tasked with implementing the line numbering. Write a function which takes a list of strings and returns each line prepended by the correct number. The numbering starts at 1. The format is n: string. Notice the colon and space in between. Examples To run Python tests, Codewars currently uses a custom test framework, published and available in this GitHub repository. The test framework provides facilities to create named, hierarchical groups of tests, as well as individual test cases.
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