You are tasked with creating a text-based program for simulating a supermarket self-service checkout...

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You are tasked with creating a text-based program for simulating a supermarket self-service checkout using the Python 3 programming language. The assignment is broken up into four main components: 1.) Design and model two classes: Product and CheckoutRegister, 2.) Create an activity chart which describes the behaviour of the checkout system, 3.) Create a computer program that allows a user to interactively check out a number of products, then provides an opportunity to enter some virtual money to pay for the products and finally and prints out a receipt for the user (to the screen, not on paper), and finally 4.) Explain and integrate some code into your checkout program that places the products purchased into virtual shopping bags. Your submission should consist of one Microsoft Word or LibreOffice document containing the first two parts of the assignment, and three Python scripts that implement the computer program (checkoutregister.py, product.py and main.py). The main.py script runs the main logic of the program and will use instances of the CheckoutRegister and Product classes to simulate checking out of the supermarket. You are provided with a Microsoft Word template to help you complete the first two parts of this assignment. Towards the end of this document you will also be provided with the output of a simulated run of the completed computer program which may help you with this assignment.School of Science, Engineering and Information Technology	 ITECH1400 – Foundations of Programming School of Science, Engineering and Information Technology ITECH1400 - Assignment 1 – Supermarket Self-Service Checkout Student Name:							Student ID: Assignment Part 1 Details – Class Design Insert your list/table of possible product properties here… Product Properties (All) 	 	 	 	 	 	 	 	 	 	 	 	 Insert your list/table of key product properties here… Product Properties (Key) 	 	 	 	 Complete the class diagram of your final Product class here… Product Class Diagram CheckoutRegister Class Diagram Complete the class diagram of your final CheckoutRegister class here… Assignment Part 2 – Activity Flowchart Insert your activity flowchart of the supermarket checkout process here… If your flowchart is large then place it on the following page. Assignment Part 3 – Software Implementation Do not place your code here – provide the code as separate .py files submitted with this document. Assignment Part 4 – Code Explanation and Use Update the below code to insert comments describing what the code is doing – for each line starting with a hash symbol (#) you should write your code comments after the hash. You may add a second line of comments if you require more space. # Function to: ___________________________ def get_float(prompt):     # ____________________________________     value = float(0.0)     # ____________________________________     while True:         try:             # ____________________________________             value = float(input(prompt))             # ____________________________________             if value  MAX_BAG_WEIGHT:             product_list.remove(product)             non_bagged_items.append(product)     # ____________________________________     current_bag_contents = []     current_bag_weight = 0.0     # ____________________________________     while len(product_list) > 0:         # ____________________________________         temp_product = product_list[0]         product_list.remove(temp_product)         # ____________________________________         if current_bag_weight + temp_product.weight  0):         output = 'Non-bagged items: '         # ____________________________________         for item in non_bagged_items:             output += item + '	'         print(output,'
') Assignment 1 – FedUni Checkout Student name: 	Student ID:  	Part 	Assessment Criteria 	Weight 	Mark 	1a 	Identification of properties of a typical supermarket Product. 	10 * 0.5 = 5 marks 	 	1b 	Application of abstraction to identify key properties of a typical supermarket Product as well as creation of a suitable Class Diagram. 	4 marks 	 	1c 	Identification of the key properties of a CheckoutRegister as well as creation of a suitable Class Diagram which uses those properties, plus the four method signatures provided. 	4 marks 	 	2 	Creation of an activity flowchart which clearly indicates how the program should operate, using the correct symbols for elements such as start/end points, processes and decisions/branches 	10 marks 	 	3 	Programming of the product checkout simulation so that it: i) Creates a small number of Product instances that may be purchased, ii) Accepts simulated ‘scanning’ of a Product to identify it (including refusal to identify products which do not exist), iii) Adds a scanned Product to the CheckoutRegister’s list of products being purchased, iv) Allows the checkout of multiple products, v) Accepts ‘virtual money’ to pay for those products (you must pay enough to cover the cost of the items checked out), and vi) Prints a final receipt of the products purchased, along with the total cost, total paid and any change given. 	5 + 5 + 5 + 5 + 5 + 5 = 30 marks. 	i) ii) iiI) iv) v) vi) Total: 	4a 	Analysis and documentation via code comments of the two functions provided. 	(8 * 0.5) + (16 * 0.5) = 12 marks 	 	4b 	Incorporation of the two functions provided into your main submission so that the program does not crash when an illegal money value is provided, and also virtually ‘bags up’ the products purchased. 	2 	 	 	 	 	 	 	Assignment total (out of 65 marks) 	 	 	 	Contribution to grade (out of 20 marks) 	 	 Comments:  	CRICOS Provider No. 00103D 	Insert file name here 	Page 6 of 8 	CRICOS Provider No. 00103D 	 	Page 8 of 8   ITECH1400 – Foundations of Programming  School of Science, Engineering and Information Technology CRICOS Provider No. 00103D  Page 1 of 7  ITECH1400 - Assignment 1 – Supermarket Self-Service Checkout  Due Date: 5pm, Friday of Week 7  This assignment will test your skills in designing and programming applications to specification and is worth  20% of your non-invigilated (type A) marks for this course. This is an INDIVIDUAL ASSIGNMENT – and while  you may discuss it with your fellow students, you must not share designs or code or you will be in breach of  the university plagiarism rules. This assignment should take you approximately 20 hours to complete.  Assignment Overview You are tasked with creating a text-based program for simulating a supermarket self-service checkout using  the Python 3 programming language.   The assignment is broken up into four main  components:  1.) Design and model two classes: Product  and CheckoutRegister,    2.) Create an activity chart which describes  the behaviour of the checkout system,     3.) Create a computer program that allows  a user to interactively check out a  number of products, then provides an  opportunity to enter some virtual money to pay for the products and finally and prints out a receipt for  the user (to the screen, not on paper), and finally    4.) Explain and integrate some code into your checkout program that places the products purchased into  virtual shopping bags.  Your submission should consist of one Microsoft Word or LibreOffice document containing the first two parts  of the assignment, and three Python scripts that implement the computer program (checkoutregister.py,  product.py and main.py).  The main.py script runs the main logic of the program and will use instances of the CheckoutRegister and  Product classes to simulate checking out of the supermarket.  You are provided with a Microsoft Word template to help you complete the first two parts of this assignment.  Towards the end of this document you will also be provided with the output of a simulated run of the completed  computer program which may help you with this assignment. ITECH1400 – Foundations of Programming  School of Science, Engineering and Information Technology CRICOS Provider No. 00103D  Page 2 of 7  Assignment Part 1 Details – Class Design  Think of a product that you can buy from a supermarket, like maybe a can of soup or an apple.   Start by listing all the properties of that object that you can think of – try to come up with at least ten general  properties of a Product and write these down in your Assignment_Part_1_ Microsoft  Word document.  Next, use the process of abstraction to cut the number of properties back to only four ‘key’ properties – write  these down in the next section of your Word document. Take a look at the week 2 lecture slides if you need a  reminder on how to go about this.  Now, fill in the class diagram for your Product class in the Word document template provided. Your product  class does not have to have any methods (i.e. functions) associated with it to perform any actions other than a  constructor which takes and set the four key properties that you’ve identified.  Next we’ll move on to CheckoutRegister class – think about what information the checkout

Abr Writing · Accepted Answer

Supermarket Self-Service Checkout.html
  
    
In [1]:
    
%run main.py
----- Welcome to FedUni checkout! -----
Please enter the barcode of the product: 123
Milk 2.0
Would you like to scan another product? (Y/N)y
Please enter the barcode of the product: 456
Coffee 3.0
Would you like to scan another product? (Y/N)y
Please enter the barcode of the product: 999
This product does not exist in our inventory.
Would you like to scan another product? (Y/N)n
Payment due:  5.0
Please enter an amount to pay: 1
5.0
1.0
Payment due:  4.0
Please enter an amount to pay: -3
We don't accept negative money!
Please enter an amount to pay: 5
4.0
5.0
----- Final Receipt ----- 
Milk 2.0
Coffee 3.0
Total amount due:  5.0
Amount received:  6.0
Change given:  1.0
Thank you for shopping at FedUni!
(N)ext customer, or (Q)uit?q

main.py
from CheckoutRegister import CheckoutRegister
# If the final option of (N)ext customer is chosen, the program runs again
moreCustomer = True
while moreCustomer:
	print('----- Welcome to FedUni checkout! -----')
	register = CheckoutRegister()
	# 
	while True:
		# Taking user input: barcode of the product
		barcode = float(input('Please enter the barcode of the product: '))
		# Scanning the product using the function scan_item
		register.scan_item(barcode)
		# Taking user input: More products or not?
		prod = input('Would you like to scan another product? (Y/N)')
		# Taking decision based on customer's input
		if prod.lower() == "n":
			# Calculating the amount due by the customer
			register.due()
			due = 0
			for idx in register.itemList:
				due += register.product.price[idx]
			print('Payment due: ', register.total)
			total = register.total
			# 
			while True:
				tmp = register.accept_payment(float(input('Please enter an amount to pay: ')))
				if tmp == "negative"	:
					continue
				print(total)
				print(register.pay[-1])
				if total > register.pay[-1]:
					print('Payment due: ', total - register.pay[-1])
					total = total - register.pay[-1]
				else:
					break
			
			# Printing the receipt
			register.print_receipt()			
			break
		else: 
			continue
			
	# Taking user input: More customers?
	next = input('(N)ext customer, or (Q)uit?')	
	if next.lower == 'n':
		continue
	else:
		moreCustomer = False
Product.py
import pandas as pd
class Product:
	def __init__(self):
		fileName = 'products.csv'
		# reading product data from fileName (.CSV file)
		df = pd.read_csv(fileName)
		self.barcode = list(df.barcode)
		self.name = list(df.name)
		self.price = list(df.price)
products.csv
barcode,name,price
123,Milk,2
212,Bread,3
456,Coffee,3
923,Sugar,5.5
Supermarket Self-Service Checkout.ipynb
{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "----- Welcome to FedUni checkout! -----
",
      "Please enter the barcode of the product: 123
",
      "Milk 2.0
",
      "Would you like to scan another product?

You are tasked with creating a text-based program for simulating a supermarket self-service checkout using the Python 3 programming language. The assignment is broken up into four main components: 1.)...

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