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Python Python Basics (2015) Shopping List App Refactor

Peter Falcone
PLUS
Peter Falcone
Courses Plus Student 1,108 Points
Posted by Peter Falcone
Peter Falcone
Courses Plus Student 1,108 Points

shopping_list issue

in the challenge, we're told to create a function and put all of the code below it inside of it. I did just that, played around with the spacing, but still haven't gotten it.

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()
    shopping_list = []
    while True:
    # ask for new items
        new_item = input("> ")
        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)

2 Answers

Krishna Pratap Chouhan
Krishna Pratap Chouhan
15,203 Points

Indentation Error: In

elif new_item="HELP" and

elif new_item=="SHOW"

See the code for more details.

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()
    shopping_list = []
    while True:
    # ask for new items
        new_item = input("> ")
        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)