python 购物

# -*- coding: utf-8 -*-
import sys
salary = int(raw_input('Please input your salary:'))
products = [
    ['Iphone', 5800],
    ['MacPro', 12000],
    ['NB Shoes', 680],
    ['Cigarate', 48],
    ['MX4', 2500],
]

list = []
for i in products:
    list.append(i[1])
if salary < min(list):
    print "工资太低，买不起任何东西"
    sys.exit()
low = min(list)
print low
shoplist = []
sum = 0

while True:
    for p in products:
        print products.index(p) ,p[0], p[1]
    choice = int(raw_input("Please choice sth to buy:"))
    if salary > products[choice][1]:
        balance = salary - products[choice][1]
        salary = balance
        print '你选择 %s 价格是 %s 您的余额是 %s '% (products[choice][0] ,products[choice][1] ,balance)
        shoplist.append(products[choice][0])
        sum = sum + products[choice][1]
    else:
        if salary > low:
            print "请选择有能力购买的商品。"
            continue
        print "金额不足，买不到东西了！\n您现在的购物车 %s 总额 %s" % (shoplist ,sum)
        sys.exit()