11.25 LAB*: Program: Online shopping cart (Part 2) This program extends the earlier "Online shopping cart" program. (Consider first saving your earlier program). (1) Extend the Item To Purchase class to contain a new attribute. (2 pts) item_description (string) - Set to "none" in default constructor Implement the following method for the ItemToPurchase class. print_item_description() - Prints item_description attribute for an Item To Purchase object. Has an ItemToPurchase parameter. Ex. of print_item_description() output: Bottled Water: Deer Park, 12 oz. (2) Build the Shopping Cart class with the following data attributes and related methods. Note: Some can be method stubs (empty methods) initially, to be completed in later steps. Parameterized constructor which takes the customer name and date as parameters (2 pts) Attributes o customer_name (string) - Initialized in default constructor to "none" o current_date (string) - Initialized in default constructor to "January 1, 2016" o cart_items (list) Methods o add_item Adds an item to cart_items list. Has parameter ItemToPurchase. Does not return anything. o remove_item Removes item from cart_items list. Has a string (an item's name) parameter. Does not return anything. If item name cannot be found output this message: Item not found in cart. Nothing removed. o modify_item Modifies an item's quantity. Has parameter Item ToPurchase. Does not return anything. If item can be found (by name) in cart, modify item in cart. If item cannot be found (by name) in cart, output this message: Item not found in cart. Nothing modified. o get_num_items_in_cart() (2 pts) Returns quantity of all items in cart. Has no parameters. o get_cost_of_cart() (2 pts) Determines and returns the total cost of items in cart. Has no parameters. o print_totalo - Outputs total of objects in cart. If cart is empty, output this message: SHOPPING CART IS EMPTY o print_descriptions() Outputs each item's description. Ex. of print_total output: John Doe's Shopping Cart Number of Items: 8 February 1, 2016 Nike Romaleos 2 @ $189 = $378 Chocolate Chips 5 @ $3 = $15 Powerbeats 2 Headphones 1 @ $128 = $128 Total: $ 521 Ex. of print_descriptions() output: John Doe's Shopping Cart February 1, 2016 Item Descriptions Nike Romaleos: Volt color, Weightlifting shoes Chocolate Chips: Semi-sweet Powerbeats 2 Headphones: Bluetooth headphones (3) In main section of your code, prompt the user for a customer's name and today's date. Output the name and date. Create an object of type Shopping Cart. (1 pt) Ex. Enter customer's name: John Doe Enter today's date: February 1, 2016 Customer name: John Doe Today's date: February 1, 2016 (4) In the main section of your code, implement the print_menu() function, print_menu() has a Shopping Cart parameter, and outputs a menu of options to manipulate the shopping cart. Each option is represented by a single character. Build and output the menu within the function. If the an invalid character is entered, continue to prompt for a valid choice. Hint: Implement Quit before implementing other options. Call print_menu() in the main() function. Continue to execute the menu until the user enters q to Quit. (3 pts) Ex: r - MENU Add item to cart Remove item from cart Change item quantity i Output items' descriptions Output shopping cart Quit 0 Choose an option: (5) Implement Output shopping cart menu option. (3 pts) Ex: OUTPUT SHOPPING CART John Doe's Shopping Cart Number of Items: 8 February 1, 2016 Nike Romaleos 2 @ $189 = $378 Chocolate Chips 5 @ $3 = $15 Powerbeats 2 Headphones 1 @ $128 = $128 Total: $521 (6) Implement Output item's description menu option. (2 pts) Ex. OUTPUT ITEMS' DESCRIPTIONS John Doe's Shopping Cart February 1, 2016 Item Descriptions Nike Romaleos: Volt color, Weightlifting shoes Chocolate Chips: Semi-sweet Powerbeats 2 Headphones: Bluetooth headphones (7) Implement Add item to cart menu option. (3 pts) Ex: ADD ITEM TO CART Enter the item name: Nike Romaleos Enter the item description: Volt color, Weightlifting shoes Enter the item price: 189 Enter the item quantity: 2 (8) Implement remove item menu option. (4 pts) Ex: REMOVE ITEM FROM CART Enter name of item to remove: Chocolate Chips (9) Implement Change item quantity menu option. Hint: Make new Item To Purchase object before using Modifyltem() method. (5 pts) Ex: CHANGE ITEM QUANTITY Enter the item name: Nike Romaleos Enter the new quantity: 3 main.py Load default template... 1 # Type code here 2 11.25 LAB*: Program: Online shopping cart (Part 2) This program extends the earlier "Online shopping cart" program. (Consider first saving your earlier program). (1) Extend the Item To Purchase class to contain a new attribute. (2 pts) item_description (string) - Set to "none" in default constructor Implement the following method for the ItemToPurchase class. print_item_description() - Prints item_description attribute for an Item To Purchase object. Has an ItemToPurchase parameter. Ex. of print_item_description() output: Bottled Water: Deer Park, 12 oz. (2) Build the Shopping Cart class with the following data attributes and related methods. Note: Some can be method stubs (empty methods) initially, to be completed in later steps. Parameterized constructor which takes the customer name and date as parameters (2 pts) Attributes o customer_name (string) - Initialized in default constructor to "none" o current_date (string) - Initialized in default constructor to "January 1, 2016" o cart_items (list) Methods o add_item Adds an item to cart_items list. Has parameter ItemToPurchase. Does not return anything. o remove_item Removes item from cart_items list. Has a string (an item's name) parameter. Does not return anything. If item name cannot be found output this message: Item not found in cart. Nothing removed. o modify_item Modifies an item's quantity. Has parameter Item ToPurchase. Does not return anything. If item can be found (by name) in cart, modify item in cart. If item cannot be found (by name) in cart, output this message: Item not found in cart. Nothing modified. o get_num_items_in_cart() (2 pts) Returns quantity of all items in cart. Has no parameters. o get_cost_of_cart() (2 pts) Determines and returns the total cost of items in cart. Has no parameters. o print_totalo - Outputs total of objects in cart. If cart is empty, output this message: SHOPPING CART IS EMPTY o print_descriptions() Outputs each item's description. Ex. of print_total output: John Doe's Shopping Cart Number of Items: 8 February 1, 2016 Nike Romaleos 2 @ $189 = $378 Chocolate Chips 5 @ $3 = $15 Powerbeats 2 Headphones 1 @ $128 = $128 Total: $ 521 Ex. of print_descriptions() output: John Doe's Shopping Cart February 1, 2016 Item Descriptions Nike Romaleos: Volt color, Weightlifting shoes Chocolate Chips: Semi-sweet Powerbeats 2 Headphones: Bluetooth headphones (3) In main section of your code, prompt the user for a customer's name and today's date. Output the name and date. Create an object of type Shopping Cart. (1 pt) Ex. Enter customer's name: John Doe Enter today's date: February 1, 2016 Customer name: John Doe Today's date: February 1, 2016 (4) In the main section of your code, implement the print_menu() function, print_menu() has a Shopping Cart parameter, and outputs a menu of options to manipulate the shopping cart. Each option is represented by a single character. Build and output the menu within the function. If the an invalid character is entered, continue to prompt for a valid choice. Hint: Implement Quit before implementing other options. Call print_menu() in the main() function. Continue to execute the menu until the user enters q to Quit. (3 pts) Ex: r - MENU Add item to cart Remove item from cart Change item quantity i Output items' descriptions Output shopping cart Quit 0 Choose an option: (5) Implement Output shopping cart menu option. (3 pts) Ex: OUTPUT SHOPPING CART John Doe's Shopping Cart Number of Items: 8 February 1, 2016 Nike Romaleos 2 @ $189 = $378 Chocolate Chips 5 @ $3 = $15 Powerbeats 2 Headphones 1 @ $128 = $128 Total: $521 (6) Implement Output item's description menu option. (2 pts) Ex. OUTPUT ITEMS' DESCRIPTIONS John Doe's Shopping Cart February 1, 2016 Item Descriptions Nike Romaleos: Volt color, Weightlifting shoes Chocolate Chips: Semi-sweet Powerbeats 2 Headphones: Bluetooth headphones (7) Implement Add item to cart menu option. (3 pts) Ex: ADD ITEM TO CART Enter the item name: Nike Romaleos Enter the item description: Volt color, Weightlifting shoes Enter the item price: 189 Enter the item quantity: 2 (8) Implement remove item menu option. (4 pts) Ex: REMOVE ITEM FROM CART Enter name of item to remove: Chocolate Chips (9) Implement Change item quantity menu option. Hint: Make new Item To Purchase object before using Modifyltem() method. (5 pts) Ex: CHANGE ITEM QUANTITY Enter the item name: Nike Romaleos Enter the new quantity: 3 main.py Load default template... 1 # Type code here 2