Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Python Basics (2015) Shopping List App Refactor

Oscar Chong
PLUS
Oscar Chong
Courses Plus Student 292 Points

Pls help me out

Here is the question:

Create a new function named main that doesn't take any arguments.

Move everything from line 22 (show_help()) and below into your new function. You shouldn't have any code that isn't inside of a function.

Can you tell me what is wrong with my code and how can i correct it? Thanks

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

Steven Parker
Steven Parker
231,275 Points

It looks like the lines in the new "main" function were not all indented by the same amount. In particular, the very last line and the line 4 lines above it.