Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Python Introducing Lists Build an Application Add Items

Can anyone help me what's wrong with my program

# Create a new empty list named shoping_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 that the item was added, and state the number of items in the list currently
    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.
""")
show_help()
while True:
    new_item = ("> ")
    if new_item == "DONE":
        break
    elif new_item == "HELP":
        show_help()
        continue
    # Call add_to_list with new_item as an argument
    add_to_list(new_item)

When I run it in the console suspicious type of result found.

1 Answer

Seth Kroger
Seth Kroger
56,406 Points

It looks like you got some typo-blindness going on. Everyone gets it at some point. On the line inside the loop you forgot to type "input" for the input function. So you are simply adding the same string to the list in an infinite loop.

thanks