# Created on savesnippets.com · https://savesnippets.com/RlAXhANk4Jzq0U
import re
import unicodedata

def slugify(text: str, sep: str = "-") -> str:
    text = unicodedata.normalize("NFKD", text)
    text = "".join(c for c in text if not unicodedata.combining(c))   # strip accents
    text = text.lower()
    text = re.sub(r"[^a-z0-9]+", sep, text)
    text = re.sub(rf"{re.escape(sep)}{{2,}}", sep, text)
    return text.strip(sep)

slugify("Hello, World!")                  # 'hello-world'
slugify("Café au lait — délicieux")        # 'cafe-au-lait-delicieux'
slugify("Python 3.12 & Beyond")           # 'python-3-12-beyond'