Question

in python

Write a class named RetaiI_Item that holds data about an item in a retail store. The class should store the following data in attributes:

• Item Number • Item Description • Units in Inventory • Price

Create another class named Cash_Register that can be used with the Retail_Item class. The Cash_Register class should be able to internally keep a list of Retail_Item objects. The class should include the following methods:

• A method named purchase_item that accepts a Retail_Item object as an argument. Each time the purchase_item method is called, the Retail_Item that is passed as an argument should be added to the list. • A method named get_total that returns the total price of all the Retail_Items objects stored in the Cash_Register’s internal list. • A method named show_items that displays data about the Retail_Item objects stored in the Cash_Register object’s internal list. • A method named clear_items that should clear the Cash_Register object’s internal list.

Write a main function that uses the Cash_Register class to allow the user to select several items for purchase. When the user is ready to check out, the program should display a list of all the items he or she has selected for purchase, as well as the total price, taxes, and the final price.

You will not get credit if the program is not written or does not work as expected.

Initial Inventory

Item Number Description Units in Inventory Price 1000 Pants 10 19.99 2000 Jeans 2 25.95 3000 Shirt 15 12.50 4000 Dress 3 79.00 5000 Socks 50 1.98 6000 Sweater 5 49.99 7000 Jacket 1 85.95


Program Menu

1. Pants 2. Jeans 3. Shirt 4. Dress 5. Socks 6. Sweater 7. Jacket 8. Clear Cash Register 9. Show Inventory 10. Check Out

Answer 1

def main():
    retail = Retail_Item()
    test = Cash_Register()
    test.data(retail.get_item_number(),\
              retail.get_description(),\
              retail.get_unit_in_inventory(),\
              retail.get_price())
    answer = 'n'

    while answer == 'n' or answer == 'N':
        test.Menu()
        print()
        print()
        Number = int(input("Enter the menu number of the item \
you would like to purchase: "))
        if Number == 8:
            test.show_items()
        else:
            test.purchase_item(Number)
        answer = input("Are you ready to check out <Y/N>?")
        x = 1
        while x == 1:
            if answer == 'y' or answer == 'n':
                x = 0
            else:
                print("Invalid input!")
                answer = input("Are you ready to check out <Y/N>?")
      
    else:
        test.get_total()
        test.clear()

class Retail_Item:

    def __init__(self):
        self.__item_number = [1000,2000,3000,4000,5000,6000,7000]
        self.__description = ['Pants','Jeans','Shirt',\
                             'Dress','Socks','Sweater','Jacket']
        self.__unit_in_inventory = [10,2,15,3,50,5,1]
        self.__price = [19.99, 25.95, 12.50, 79.00, 1.98, 49.99, 85.95]

    def get_item_number(self):
        return self.__item_number

    def get_description(self):
        return self.__description

    def get_unit_in_inventory(self):
        return self.__unit_in_inventory

    def get_price(self):
        return self.__price

class Cash_Register:

    def __init__(self):
        self.__item_number_list = []
        self.__description_list = []
        self.__unit_list = []
        self.__price = []
        self.__total_item_number = []
        self.__total_des = []
        self.__total_price = []
        self.__sub_total = 0

    def data(self,list1,list2,list3,list4):
        self.__item_number_list = list1
        self.__description_list = list2
        self.__unit_list = list3
        self.__price = list4

    def Menu(self):
        print("1. Pants")
        print("2. Jeans")
        print("3. Shirt")
        print("4. Dress")
        print("5. Socks")
        print("6. Sweater")
        print("7. Jacket")
        print("8. Show Inventory")

    def purchase_item(self,Number):
        self.__total_item_number.append(self.__item_number_list[Number-1])
        self.__total_des.append(self.__description_list[Number-1])
        self.__total_price.append(self.__price[Number-1])
        if self.__unit_list[Number-1] - 1 >= 0:
            self.__unit_list[Number-1] = self.__unit_list[Number-1] - 1
        else:
            print("The item is out of stock")
              
    def show_items(self):
        print('Item Number','{:>18}'.format('Description'),\
              '{:>24}'.format('Units in inventory'),\
              '{:>11}'.format('Price'))
        for a in range(0,7):
            print('   ','{:<17}'.format(self.__item_number_list[a]),\
                  '{:<20}'.format(self.__description_list[a]),\
                  '{:<15}'.format(self.__unit_list[a]),\
                  '{:>8}'.format(format(self.__price[a],'.2f')))

    def get_total(self):
        print('Item Number','{:>18}'.format('Description'),\
              '{:>19}'.format('Price'))
        for a in range(0,len(self.__total_item_number)):
            print('   ','{:<17}'.format(self.__total_item_number[a]),\
                  '{:<18}'.format(self.__total_des[a]),\
                  '{:>9}'.format(format(self.__total_price[a],'.2f')))
        print()
        print()
        self.__sub_total = sum(self.__total_price)
        tax = self.__sub_total * 0.0825
        total_price = self.__sub_total * 1.0825
        print('{:<12}'.format('Sub Total:'),\
              '{:>10}'.format(format(self.__sub_total,'.2f')))
        print('{:<12}'.format('Tax:'),\
              '{:>10}'.format(format(tax,'.2f')))
        print('{:<12}'.format('Total Price:'),\
              '{:>10}'.format(format(total_price,'.2f')))
      
      
    def clear(self):
        self.__total_item_number = []
        self.__total_des = []
        self.__total_price = []
        input('Press any key to continue')

main()