Final Project: Shopping Cart

You've learned printing, variables, types, strings, math, lists, if/else, and loops. That's genuinely enough to build something real. Let's make a tiny shopping cart program that ties it all together.

What it will do

• Hold a list of items, each with a name and a price.
• Loop through them, printing each one with an f-string.
• Add up the total cost as it goes.
• Use an if to give a discount when the total is high.

The program

cart = [
    ["apple", 1.20],
    ["bread", 2.50],
    ["cheese", 4.00],
]

total = 0
for item in cart:
    name = item[0]
    price = item[1]
    print(f"{name}: {price}")
    total = total + price

print("-" * 20)
print(f"Total: {total}")

if total >= 5:
    print("You earned a 10% discount!")
    total = total * 0.9
    print(f"New total: {total}")
else:
    print("Spend more to earn a discount.")

Every piece here is something you already know. Each item is a small list of [name, price], so item[0] is the name and item[1] is the price. The loop prints each item and grows the total. Then a single if decides whether to apply a discount.

The line "-" * 20 is a fun trick: multiplying a string by a number repeats it, giving a line of 20 dashes as a separator.

Your turn

Run it, then make it yours: add a new item to the cart, change the prices, or change the discount threshold from 5 to something else. Experiment freely "" you can't break anything, and running again always gives a fresh start. Congratulations: you're writing programs.