30-seconds-of-code/snippets/slugify.md

title, tags, expertise, firstSeen, lastUpdated

title	tags	expertise	firstSeen	lastUpdated
String to slug	string,regexp	intermediate	2020-10-05T21:57:34+03:00	2020-10-25T12:43:20+02:00

Converts a string to a URL-friendly slug.

• Use str.lower() and str.strip() to normalize the input string.
• Use re.sub() to to replace spaces, dashes and underscores with - and remove special characters.

import re

def slugify(s):
  s = s.lower().strip()
  s = re.sub(r'[^\w\s-]', '', s)
  s = re.sub(r'[\s_-]+', '-', s)
  s = re.sub(r'^-+|-+$', '', s)
  return s

slugify('Hello World!') # 'hello-world'