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Python Python Basics (2015) Shopping List App Refactor

Help with the position pls

I don't understand why it's wrong..i put def main() in 22, everything is under the faction but doesn't work.

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)
main()
show_list(shopping_list)

2 Answers

Sean T. Unwin
Sean T. Unwin
28,690 Points

Hi Michele,

Along with adding, def main(), we also have add the colon (:) after that on the same line to make it a function declaration. We also have to indent all the code following that, including the last line, so that the indented code becomes part of the function body.

Happy coding! :-)

Sry Sean I tried a lot of time but the indentation is never correct, i tried everything but does not work.

Sean T. Unwin
Sean T. Unwin
28,690 Points

I missed this before, but remove the second last line, where you are calling main(). We don't need that at this stage. Only the function declaration. Also, make sure that the last line, show_list(shopping_list), is indented as well.