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Python Python Basics (2015) Shopping List App Refactor

victor E
victor E
19,145 Points
Posted by victor E
victor E
19,145 Points

i HAVE ZERO CLUE ON WHATS GOING ON HERE!

so what do I need to do here?

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

show_help()

# make a list to hold onto our items
shopping_list = []

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

    # be able to quit the app
    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)
Konstantin Krumov
Konstantin Krumov
3,117 Points

Hello,

the task states:

  1. Create a new function named main that doesn't take any arguments.
  2. Move everything from line 22 (show_help()) and below into your new function. You shouldn't have any code that isn't inside of a function.

Create a function using the def keyword and then put all the core below line 22 inside the new function you have created. Pay attention to the indentation ! You must indent the code properly in order for it to work.