What you need Basics of python knowledge on Dictionary and functions knowledge on Classes and objects. OK!! HERE IS THE CODE 😊 import random import string def create_shortURL(link): chars = string.ascii_lowercase # chars = ['a','c','z'] short_url = ''.join(random.choice(chars) for i in range ( 5 )) d = {} URL = 'https://www.plc.ly/' + short_url # PLC = Python Learn Camp d[URL] = link # This is optional if URL in d: print ( 'Your URL:' ,d[URL]) print ( 'Shorten URL:' ,URL) ...