# Functions go here def string_check(question, valid_answers=('yes', 'no'), num_letters=1): """Checks that users enter the full word or the 'n' letter/s of a word from a list of valid responses""" while True: response = input(question).lower() for item in valid_answers: # check if the response is the entire word if response == item: return item # check if it's the first letter elif response == item[:num_letters]: return item print(f"Please choose an option from {valid_answers}") # Main routine goes here while True: yes_no_list = ["yes", "no"] like_pizza = string_check("Would you like pizza? ", yes_no_list) print(f"You chose {like_pizza}")