create a new empty list called shopping_list

shopping_list = []

create a function named add_to_list that declares a parameter named item

def add_to_list(item): # add the item to the list shopping_list.append(item) # notify user of total items in list print("Added! List has {} items.".format(len(shopping_list)))

def show_help(): print("What should we pick up at the store?") print(""" Enter 'DONE' to stop adding items. Enter 'HELP' for this help. Enter 'SHOW' to see the whole list. """) print(show_help())

def show_list(): for item in shopping_list: print("Here's your list:") for item in shopping_list: print(item)

while True: new_item = input("> ") # prompts for new data to be added to list

if new_item == 'DONE':  # terminates prompt when DONE is entered
    break               # breaks the loop
elif new_item == 'HELP':
    show_help()
    continue
elif new_item == 'SHOW':
    show_list()
    continue

    # call add_to_list with new_item as an argument
add_to_list(new_item)

print(show_list())

the word "none" keeps showing up in my lists, and my list repeats twice when I use "DONE" command