Cant seem to see what is wrong?

shopping_list = []


def show_help():
  print('\nSeperate each item with a comma.')
  print('Type DONE to quit, SHOW to see the current list, and HELP to get this message.')

def show_list():
  count = 1
  for item in shopping_list:
    print("{}: {}".format(count, item))
    count += 1

print("Give me a list of thing you need to shop for.")

show_help()

while True:
  new_stuff = input("> ")

  if new_stuff == "DONE":
    print("\nHere's your list:")
    show_list()
    break
  elif new_stuff == "HELP":
    show_help()
    continue
  elif new_stuff == "SHOW":
    show_list()
    continue
  else:
    new_list = new_stuff.split(",")
    index = input("Add this at a certain spot? Press enter for the end of the list, "
                  "or give me a number. Currently {} items in the list.".format(
        len(shopping_list)))

    if index:
        spot = int(index) - 1
        for item in new_list:
            shopping_list.insert(spot, item.strip())
            spot += 1
    else:
        for item in new_list:
            shopping_list.append(item.strip())