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Python Python Basics (2015) Shopping List App Refactor

Posted by annikaheflin
annikaheflin
577 Points

So I need to create a function i think on line 22 and include everything below it but i did that and it didn't work.

please help

shopping_list.py 
def show_help():
    # print out instructions on how to use the app
    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 your current list.
""")

def show_list(shopping_list):
    # print out the list
    print("Here's your list:")

    for item in shopping_list:
        print(item)

def add_to_list(shopping_list, new_item):
    # add new items to our list
    shopping_list.append(new_item)
    print("Added {}. List now has {} items.".format(new_item, len(shopping_list)))
    return shopping_list

 def main():
    show_help()

# make a list to hold onto our items
    shopping_list = []

       while True:
    # ask for new items
        new_item = input("> ")

    # be able to quit the app
        if new_item == 'DONE':
            break
        elif new_item == 'HELP':
        show_help()
            continue
        elif new_item == 'SHOW':
        show_list(shopping_list)
            continue
    add_to_list(shopping_list, new_item)

show_list(shopping_list)

1 Answer

Amanda Allison
Amanda Allison
9,104 Points

Nearly there! You'll want to make sure that everything after line 22 that you've moved into your new main function is included in that function:

def show_help():
    # print out instructions on how to use the app
    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 your current list.
""")

def show_list(shopping_list):
    # print out the list
    print("Here's your list:")

    for item in shopping_list:
        print(item)

def add_to_list(shopping_list, new_item):
    # add new items to our list
    shopping_list.append(new_item)
    print("Added {}. List now has {} items.".format(new_item, len(shopping_list)))
    return shopping_list

def main():
    show_help()

    # make a list to hold onto our items
    shopping_list = []

    while True:
        # ask for new items
        new_item = input("> ")

        # be able to quit the app
        if new_item == 'DONE':
            break
        elif new_item == 'HELP':
            show_help()
            continue
        elif new_item == 'SHOW':
            show_list(shopping_list)
            continue
        add_to_list(shopping_list, new_item)

    show_list(shopping_list)