After entering an item such as apples, I do not get the "Added! Last has x items" message.

Question

Create a new empty list named shopping_list
shopping_list = []
Create a function named addtolist that declares a parameter named item
def addtolist(item):
       # Add the item to the list
    shoppinglist.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(shoppinglist)))
def show_help():
    print("What should we pick up at the store?")
    print("""
Enter 'DONE' to stop adding items.
Enter 'HELP' for this help.
""")
showhelp()
while True:
    newitem = input("> ")
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)

Brandon White · Accepted Answer

Hi Adem Gun,
I think you're wanting to call add_to_list(new_item) within an else block. The way your code is currently written, that calling of the addtolist(new_item) function is unreachable by the interpreter. If the user types 'DONE' then the while loop is broken, and if they type 'HELP' it shows the help menu, then skips back to the start of the while loop, but if the user types anything else there's no code to account for that, so the loop starts over.
If you place that function call inside of an else block, then your program should work as expected.

Gonzalo Diaz · Answer

Hi all, 
I had the same issue but in my case it was because when editing, the "continue" was at the same line as elif rather than just underneath "showhelp()". That is why it skipped the "addto_list message".
Hope this helps!

Adem Gun · Answer

Thanks Brandon White!

Bienvenido a la Comunidad de Treehouse

¿Buscas aprender algo nuevo?

Adem Gun

Adem Gun

Después de ingresar un elemento como manzanas, no recibo el mensaje "¡Agregado! La lista tiene x elementos".

Crear una nueva lista vacía nombrada shopping_list

Crea una función llamada add_to_list que declare un parámetro llamado item

3 Respuestas

Brandon White

Brandon White

Adem Gun

Adem Gun

Gonzalo Diaz

Gonzalo Diaz