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discount applied

You needed to change the coffee bar POS program to apply the 10%
discount to everything that’s sold. You had three tasks.

1 Start by creating a new module called promotion.py containing
one function:
Multiplying the price by 0.9
def discount(price):
return 0.9 * price will give you a 10% discount..

2 Complete the code in the above function so that it returns 90% of the price it is
given.

3 This is the latest version of the coffee_pos.py module. Modify it so that it
uses the new module to cut the price of everything that’s sold.

You need to import the code
from transactions import * from the “promotion.py” module.
from promotion import *

items = ["DONUT", "LATTE", "FILTER", "MUFFIN"]
prices = [1.50, 2.20, 1.80, 1.20]
running = True

while running:
option = 1
for choice in items:
print(str(option) + ". " + choice)
option = option + 1
print(str(option) + ". Quit")
choice = int(input("Choose an option: "))
if choice == option:
running = False
Your code should
call the “discount()”
else:
credit_card = input("Credit card number: ") function.
new_price=discount(prices[choice - 1])

save_transaction(prices[choice - 1], credit_card, items[choice - 1])
new_price “new_price” is the discounted value of the price.

202 Chapter 6