slugify strings with pure regex and python

slugify.py

import re


def slugify(s: str) -> str:
    s_after_basic_replacement = re.sub("[^a-zA-Z0-9]", "-", s)
    s_with_no_continues_dash = re.sub("[-]+", "-", s_after_basic_replacement)
    s_with_no_ending_dash = re.sub("-$", "", s_with_no_continues_dash)
    return s_with_no_ending_dash


if __name__ == '__main__':
    print(slugify("is this a good title? "))
    # is-this-a-good-title