Shopping basket with a discount code

Mediumclasslist attributemethodsround· 20 XP

An online shop's basket holds items and their prices, and a discount code takes a percentage off the total.

Write a class Basket with:

add(name, price, qty=1) that adds an item
subtotal() that returns the sum of price × quantity for all items
apply_code(code) that stores a discount: "SAVE10" is 10% off and "SAVE25" is 25% off; any other code raises ValueError("unknown code")
total() that returns the subtotal after the discount, rounded to 2 decimals

How it's checked

Your code runs, then the check below runs and its printed output is compared with ours.

Hints, the later steps and the answer come with Pro.

class Basket:
    def __init__(self):
        ...