Shopping list 3

shopping_list = []


def show_help():
    print("\nSeparate each item with a comma.")
    print("Type DONE to quit, SHOW to see your current list and HELP yo see this message.")


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

print("Can you provide me a list with items you want to buy, please?")
show_help()

while True:
    new_stuff = input("> ")

    if new_stuff == "DONE".lower():
        print("\nHere's your list:")
        show_list()
        break
    elif new_stuff == "HELP".lower():
        show_help()
        continue
    elif new_stuff == "SHOW".lower():
        show_list()
        continue
    else:
        new_list = new_stuff.split(",")
        index = input("Add this at the 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())