shopping_list_4.py

shopping_list = []

def remove_item(idx):
    index = idx - 1
    item = shopping_list.pop(index)
    print("Remove {}.".format(item))

def show_help():
    print("\nSeparate each item with a comma.")
    print("Type DONE to quit, SHOW to see the current list, "
        "REMOVE to delete an item, 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 things you want 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
    elif new_stuff == "REMOVE":
        show_list()
        idx = input("Which item? Tell me the number. ")
        remove_item(int(idx))
        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.\n".format(len(shopping_list)))
        if index:
            try:
                spot = int(index) - 1
                for item in new_list:
                    shopping_list.insert(spot, item.strip())
                    spot += 1
            except ValueError:
                print("{} is not a number. Please enter your item again.".format(index))
        else:
            for item in new_list:
                shopping_list.append(item.strip())