Is there a way to remove all characters except letters in a string in Python?

Question

I call a function that returns code with all kinds of characters ranging from ( to ", and , and numbers.

Is there an elegant way to remove all of these so I end up with nothing but letters?

Answer 1

Well, I use this for myself in this kind of situations

Sorry, if it's outdated :)

string = "The quick brown fox jumps over the lazy dog!"
alphabet = "abcdefghijklmnopqrstuvwxyz"

def letters_only(source):
    result = ""
    for i in source.lower():
        if i in alphabet:
            result += i
    return result

print(letters_only(string))