Problem description: Write python application to simulate an online clothing system. The purpose of this assignment is

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Question:

Problem description: Write python application to simulate an online clothing system. The purpose of this assignment is to gain experience in Python dictionary structure, create basic Python functions and import a module.

Design solution: The template file contains a list of clothes item sold, each item in the list contains the item id, name of the item and the prices. The program will generate an items_dict where each key is the item id of the cloth and the values will be a list of item name and price information. A customer will be presented with a main menu with 4 different options: display all items, add an item to cart, checkout and exit the program. A customer can buy an item by entering the ID of the item. This program implements a dictionary called cart, where each key is the item id and the values are the list of name, price and quantity that user chooses to purchase. The program keeps repeating by displaying the main menu to user until user hits the quit button. If user hits the checkout option, the program will display all the items in the cart and display the total amount purchased.

Implementation:
1. This program will require to use two .py files: utility and application files. utility filecontains all the helper functions. The application file contains the main functionality ofthe program. One helpful example can be: how to import a module.
2. This program requires to implement two dictionaries: items_dict and cart. items_dictwill be populated from the given list of clothes at the beginning of the program. Eachkey will be the item id and the value will be a list of item name and price. cart dictionarywill be a subset of items_dict that contains all the items user wants to purchase. Thestructure will be same as items_dict except the value list will contain name, price andquantity of the item.
3. The application file will contain a main function. main function implements the usermenu and calls all the functions from the utility file. Hint: How to import a function fromone file to another?
4. Utility file will contain the following function definitions. All these function call will bemade from application file.a. build_dict(items): Returns items_dict from items list. items list is provided in thetemplate file. This function is defined in the utility file and will be called from theapplication file at the beginning of the program.

b. checkout(cart): Returns the total amount purchased using the user cart. Thisfunction will be called when user chooses to checkout for option 3. cart containsall the items user is purchasing. checkout function will get the price and quantityof an item from the cart dictionary and returns the total amount by multiplyingprice with quantity. Hint: price of an item is the -2 index and quantity at -1 indexfrom the cart's value list.

c. display_all_items(d): Takes any dictionary d and display all the items in thedictionary. This function will be called for menu option 1 and option 3. Hint: Howto print a dictionary?
d. add_to_cart(item_id, cart, items_dict): Add an item to cart from the items_dict if item id exists in the items_dict. For menu option 2, user will provide the itemid. If id exists then item will be added to the cart. Upon successful addition thefunction will return True otherwise returns False.