text: def discount(price):
    return 0.9 * price
  
  from trans.log import *
  
  items = ["DONUT", "LATTE", "FILTER", "MUFFIN"]
  prices = [1.50, 2.0, 1.80, 1.20]
  
  running = True
  while running:
    option = 1
    for choice in items:
      print(str(option) + ". " + choice)
      option = option + 1
  
      print(str(option) + ". Quit")
      choice = int(input("Choose an option: "))
  
      if choice == option:
        running = False
      else:
        credit_card = input("Credit card number: ")
        save_transaction(prices[choice - 1], credit_card, items[choice - 1])