Shopping list 3

Question

shopping_list = []

def show_help(): print("\nSeperate each item with a comma.") print("Type DONE to quit, SHOW to see current list, and HELP to get this message")

def show_list(): count = 1 for item in shopping_list: print("{}: {}".format(count, item)) count += 1

print("Give me the list of things you want to shop for.")
show_help()

show_list()

while True: new_stuff = input("> ")

if new_stuff == "DONE":
    print("\nHere is your list:")
    show_list()
    break
elif new_stuff == "SHOW":
    show_list()
    continue
elif new_stuff == "HELP":
    show_help()
    continue
else:
    new_list = new_stuff.split(",")
    index = input("\nAdd this at a certain spot? \nPress enter to close,"
                      "or give me a number. \nCurently {} items in the list".format(len(shopping_list)))

    if index:
      spot = int(index) - 1
      for item in new_list:
        shopping_list.insert(spot, item.strip())
        spot += 1

    else:
      for item in new_list:
        shopping_list.append((item.strip()))

ValueError: invalid literal for int() with base 10: 'DONE'

Answer 1 · 2016-10-26T09:14:09Z

October 26, 2016 9:14am

what am i doing wronf ?

Answer 2 · 2016-11-08T23:00:11Z

November 8, 2016 11:00pm

I noticed a few things, When you enter something other than a number, at this part of your code spot = int(index) - 1, it would try to convert it to a number and that's where you would get the ValueError, you want to do a try except to catch the value error.

Also at the end it, you should also increment spot when you append a new item to the list. hope that helps.

Welcome to the Treehouse Community

Looking to learn something new?

Igor Bochenek

Igor Bochenek

Shopping list 3

2 Answers

Igor Bochenek

Igor Bochenek

Brian Zhang

Brian Zhang