import pickle


class Goods:
    def __init__(self, id, name, price):
        self.id = id
        self.name =name
        self.price = price

    def Read_info_goods(self):
        self.id = int(input("enter goods id: "))
        self.name = input("enter goods name: ")
        self.price = float(input("enter goods price: "))

    def Show_info(self):
        print("goods features:  ", self.id, " , ", self.name, " , ", self.price)


def write_file(list_goods1, n):
    file = open('D:\\Goods', 'wb')
    for i in range(n):
        pickle.dump(list_goods1[i], file)
    file.close()


def Read_file(n):
    list_goods1 = []
    file = open('D:\\Goods', 'rb')
    for i in range(n):
        list_goods1.append(pickle.load(file))
    file.close()
    return list_goods1


def sort(list_goods, n):
    for i in range(n):
        for j in range(n):
            if list_goods[i].name < list_goods[j].name:
                temp = list_goods[i]
                list_goods[i] = list_goods[j]
                list_goods[j] = temp
    return list_goods


list_goods = []
for i in range(0, 3):
    goods = Goods(0, "", 0.0)
    goods.Read_info_goods()
    list_goods.append(goods)

list_goods=sort(list_goods,3)
write_file(list_goods, 3)
list_goods = Read_file(3)

for i in range(0, 3):
    list_goods[i].Show_info()