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

Posted by ibrahim Warsame
ibrahim Warsame
7,803 Points

Shopping list program.

Hi! This is my shopping list program, before watching the video.

 shoopping_list = []

def general_info():
    print("Add an one item to your list at a time.")
    print("Type DONE in all upper case letters to exit")
    print("Type SHOW in all upper case letters to see your current list.")


def user_input(inpUt):
    if inpUt.isalpha():
        shoopping_list.append(inpUt)
    else:
        print("Invalid")



loop = True
while loop:
    general_info()
    inpUt = input()

    if inpUt == "DONE":
        break
    elif inpUt == "SHOW":
        print(shoopping_list)

    user_input(inpUt)


print(shoopping_list)

What do you guys think about the program. I will thank you for any kind of feedback :)

1 Answer

Martin Cornejo Saavedra
Martin Cornejo Saavedra
18,132 Points
Martin Cornejo Saavedra
Martin Cornejo Saavedra
18,132 Points

Never modify a variable from the global scope inside a function, that's not a good practice, makes hard to check errors later. Group functionalities to reuse code later.

def general_info():
    print("Add an one item to your list at a time.")
    print("Type DONE in all upper case letters to exit")
    print("Type SHOW in all upper case letters to see your current list.")


def user_input(inpUt):
        if inpUt.isalpha():
            return True

        return False

def show(shoopping_list):
    print("----------------------------------")

    for item in shoopping_list:
        print(item)

    print("----------------------------------")


def createList():
    shoopping_list = []
    while True:

        general_info()    
        inpUt = input()

        if inpUt.lower() == "DONE".lower():
            break

        elif inpUt.lower() == "SHOW".lower():
            show(shoopping_list)
            continue

        elif not user_input(inpUt):
            print("Invalid")
            continue

        shoopping_list.append(inpUt)

    return shoopping_list


def main():
    shoopping_list = createList()
    show(shoopping_list)


main()
ibrahim Warsame
ibrahim Warsame
7,803 Points

Thanks for the feedback! i will try to do what you just said.