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Python Python Basics (2015) Shopping List App Shopping List Introduction

Grigorij Schleifer
Grigorij Schleifer
10,365 Points
Posted by Grigorij Schleifer
Grigorij Schleifer
10,365 Points

Shopping list code problem:

Hello folks,

I trying to code a shopping list programm by myself and have a little problem.

My code is:

shopping_list = []

print ("Type in your items and STOP if you want to quit")

list_item = input("> ")

while True:
    if list_item == 'STOP':
        print("See you later")
        break

    shopping_list.append(list_item)

print("Your shopping list:")

for x in shopping_list:
    print(x)

I can see the prompt and can type an item but if I press enter I see this error:

Type in your items and STOP if you want to quit
> cool
Traceback (most recent call last):
  File "test.py", line 5, in <module>
    list_item = input("> ")
  File "<string>", line 1, in <module>
NameError: name 'cool' is not defined

Why is my item not defined? Can someone help me ?

Grigorij

2 Answers

Grigorij Schleifer
Grigorij Schleifer
10,365 Points
Grigorij Schleifer
Grigorij Schleifer
10,365 Points

Hi Carlos,

thank you for your reply :)

I figured out that I am using python 2 in my console and not python 3.

So I have changed input to raw_input and the error disappeared.

Thank you again

Grigorij

Carlos Federico Puebla Larregle
Carlos Federico Puebla Larregle
21,073 Points
Carlos Federico Puebla Larregle
Carlos Federico Puebla Larregle
21,073 Points

I would recommend you to put the:

list_item = input("> ")

Inside of the:

while True:
    if list_item == 'STOP':
        print("See you later")
        break

Because if you don't put "STOP" in the first place you are never going to be able to get out of that while loop. Besides of that I can't see why is throwing at you that "NameError".

I hope that helps a little bit.