py_stepik/chekout_menu.py

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goods = {
"пицца": 250,
"роллы": 300,
"чипсы": 100,
"чай": 50,
}
menu = [*zip(range(1, len(goods) + 1), *zip(*goods.items()))]
selection = {i: name for i, name, *_ in menu}
cart = {}
def show_menu():
print("Меню:")
for i, name, price in menu:
print(f"{i} - {name} {price} руб.")
print(f"{menu[-1][0] + 1} - выход\n")
def show_cart():
print("Ваша корзина:")
total = 0
for name, count in cart.items():
pos_sum = goods[name] * count
print(f"{name} - {count} шт. - {pos_sum} руб.")
total += pos_sum
print(" - - - - - - ")
print(f"Итого: {total} руб.\n")
def ask_user():
show_menu()
i = int(input("Ваш выбор: "))
while not 0 < i <= len(menu) + 1:
show_menu()
i = int(input("Ваш выбор: "))
if i <= len(menu):
return selection[i]
print("Добро пожаловать в сервис заказа еды")
for name in iter(ask_user, None):
cart.setdefault(name, 0)
cart[name] += 1
print()
show_cart()