CodeWars Python Solutions

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

number([]) # => []
number(["a", "b", "c"]) # => ["1: a", "2: b", "3: c"]

def number(lines):
    pass

def number(lines):
    return ["{}: {}".format(str(i+1), c) for i,c in enumerate(lines)]