Yo, this is a badass answer. Well done.

Your formatted exception is cool, but the logic wouldn't make sense for negative numbers.

Something like -> raise Exception("insert list index {} is invalid".format(index)) would though!

you're a wild one

really nice solution

this wall of code is atrocious! hahaha

You are right my friend, not sure why i didnt copy to a variable. Thanks for the heads up!

Nice use of list comprehensions! A unique answer

I like your use of space delineation!

alphabet could be replaced by the use of char.isalpha()!

I prefer answers like this over the regex imports, more creative imo