School of Science, Engineering and Information Technology ITECH1400 – Foundations of Programming – SEM3/18 School of Science, Engineering and Information Technology ITECH1400 - Assignment 1 –...

4/.DS_Store
__MACOSX/4/._.DS_Store
4/1/recyclingmachine.py
from recyclableItem import RecyclableItem
class RecyclingMachine(object):
"""
Class Implementation of Recycling Machine
"""
#Constructor
def __init__(self):
self.weight_list = {
"can": 0.10,
"bottle": 0.20,
"paper": 0.02,
"bag": 0.02,
}
self.total_balance = 0
self.items = []
def select_product(self):
"""
Function to display menu to the customer
"""
while True:
name = input("Please select a product: (Bag, Bottle, Paper, Can, Stop) ".\
format(self.total_balance))
if name.lower() == "stop":
break
else:

quantity = int(input("How many %s do you have? "%name))
print ("Please place {} {} into the machine".format(quantity, name))

self.items.append(RecyclableItem(name, quantity))
print ("{} Added".format(name))

def accept_product(self):
"""
Function to accept items
"""
self.select_product()

def identify_product(self):
"""
Function to identify items which are accepted
"""
i = 0
while i < len(self.items):
if self.items[i].name not in self.weight_list.keys():

print ("Item %s cant be recycled."%self.items[i].name)
#Removing items which arent accepted
self.items.pop(i)
else:
#Pricing based on weight and quantity
self.items[i].price = self.weight_list[self.items[i].name.lower()]*self.items[i].quantity
i +=1
def payment(self, amount):
"""
Assuming payment is by cash
"""
def get_float(prompt):
#Accept valid pay
value = float(0.0)
while True:
try:
value = float(input(prompt))
if value < 0.0:
print("We don't accept negative money!")
continue
break
except ValueError:
print('Please enter a valid decimal value.')
return value
cash = get_float("Please put your dollars: ")
print ("You paid ${}. Change: ${}".format(cash, cash-self.total_balance))
def print_receipt(self):
"""
Print receipt and accept payment
"""
print ("\n----- Final Reciept -----\n")
for item in self.items:
print ("{} {}(s) \t {}".format(item.quantity, item.name, item.price))
self.total_balance += item.price
print ("Number of Items: {}".format(len(self.items)))
print ("Total Amount for your items: {}".format(self.total_balance))

print ("Thank you for recycling at FedUni!")
4/1/.DS_Store
__MACOSX/4/1/._.DS_Store
4/1/recyclableItem.py
class RecyclableItem(object):
def __init__(self, name, quantity,weight=0,):
#Constructor
self.name = name
self.weight = weight
self.quantity = quantity
4/1/student1.docx
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 RecycleableItem properties here…
RecycleableItem Properties (All)
        Strength
        Toughness
        Odour
        Colour
        Material
        Age
        Appearance
        Weight
        Use
        Price
        Quantity
        Eco friendly
Insert your list/table of key product properties here…
RecycleableItem Properties (Key)
        Weight
        Price
        Use
        Quantity
Complete the class diagram of your final RecycleableItem class here…
RecycleableItem Class Diagram
RecyclableItem
Name: str
Qty: int
Price: float
No methods
RecyclingMachine Class Diagram
Complete the class diagram of your final Recycling class here…
RecyclingMachine
Balance: float
total_items: int
max_items: int
select_product()
accept_product()
payout(amount)
print_receipt()
identify_product()
Assignment Part 2 – Activity Flowchart
Insert your activity flowchart of the recycling machine 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: accept positive integer value
def get_int(prompt):
# set value to 0
value = int(0)
# infinite loop
while True:
try:
# converting user input to integer
value = int(input(prompt))
# checking negative value
if value < 0:
print("We don't accept a negative number of items!")
continue
# out of loop
break
# handling non-int values
except ValueError:
print('Please enter a valid integer value.')
# returns value accepted
return value
# Function to: accept items into machine
def accept_item(item_list):

# initialising variables
item_list = []
non_accepted_items = []
MAX_WEIGHT = 15.0
# looping over item_list
for item in item_list:
# check If item weight more than bag weight
if item.weight > MAX_BAG_WEIGHT:
item_list.remove(item)
non_accepted_items.append(item)
# setting current variables
current_contents = []
current_weight = 0.0
# loop till item_list finishes
while len(item_list) > 0:
# handle item in temp and remove from item_list
temp_item = item _list[0]
item_list.remove(temp_item)
# check if bag’s current weight+ item weight exceeds max weight
if current_weight + temp_item.weight < MAX_WEIGHT:
# appending to bag
current_contents.append(temp_item)
current_weight += temp_item.weight

# append to products when list finishes
if (len(item_list) == 0):
products_item.append(current_contents)

# bag full condition
else:
item_list.append(current_contents)
# reset current variables
current_contents = []
current_weight = 0.0
# loop over bags in machine
for index, bag in enumerate(machine_list):
output = 'Machine ' + str(index + 1) + ' contains: '
# print all items to user
for item in items:
output += item.name + '\t'
print(output, '\n')
# if non accepted items exist
if (len(non_accepted_items) > 0):
output = 'Non-bagged items: '
# print all non-accepted items
for item in non_accepted_items:
output += item + '\t'
print(output,'\n')
Assignment 1 – FedUni Checkout
Student name:     Student ID:
        Part
        Assessment Criteria
        Weight
        Mark
        1a
        Identification of properties of a typical item that can be recycled – RecycleableItem.
        10 * 0.5 = 5 marks
        
        1b
        Application of abstraction to identify key properties of a typical RecycleableItem as well as creation of a suitable Class Diagram.
        4 marks
        
        1c
        Identification of the key properties of a RecyclingMachine 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 RecycleableItem instances that may be accepted,
ii) Accepts simulated ‘deposting’ of a RecycleableItem after being identified from a list by the user,
iii) Adds a RecycleableItem to the RecyclingMachine list of products being purchased,
iv) Allows the deposit of multiple items,
v) Provides ‘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 items deposited, along with the number of items and amount for each item, along with the total paid out.
        4 + 4 + 4 + 4 + 4 + 4 = 24 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
        
        Overall
        Overall code standard including comments, formatting, variable names
        9
        
        
        Assignment total (out of 70 marks)
        
        
        
        Contribution to grade (out of 20 marks)
        
        
Comments:
CRICOS Provider No. 00103D        Page of
__MACOSX/4/1/._student1.docx
4/1/main.py
from recyclingmachine_ import RecyclingMachine
def run():
vm = RecyclingMachine()
next_customer = True
while next_customer:
vm.accept_product()
vm.identify_product()
vm.return_receipt()
while True:
answer = input("\n(N)ext customer, or (Q)uit?")
answer = answer.upper()
if answer == "N":
    
break
elif answer == "Q":
exit()
else:
print("Invalid Response")
if __name__ == '__main__':
run()
4/4/.DS_Store
__MACOSX/4/4/._.DS_Store
4/4/main 3.py
from recyclingmachine import RecyclingMachine
def run():
vm = RecyclingMachine()
next_customer = True
while next_customer:
vm.select_product()
vm.print_receipt()
while True:
answer = input("\n(N)ext customer, or (Q)uit?")
answer = answer.upper()
if answer == "N":
    
break
elif answer == "Q":
exit()
else:
print("Invalid Response")
if __name__ == '__main__':
run()
__MACOSX/4/4/._main 3.py
4/4/recyclableItem_copy.py
class WaterBottle(object):
def __init__(self, name,quantity,weight=0,):
#Constructor
self.name = name
self.weight = weight
self.quantity = quantity
4/4/student7.docx
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 RecycleableItem properties here…
RecycleableItem Properties (All)
        Plasticity
        green
        natural
        Hygenic
        Strong
        Long lasting
        Cost effective
        Quantity
        Weight
        Use case
        reusable
        Price
Insert your list/table of key product properties here…
RecycleableItem Properties (Key)
        quantity
        price
        age
        Weight
Complete the class diagram of your final RecycleableItem class here…
RecycleableItem Class Diagram
RecyclableItem    
Qty:int
Price:float
Nothing
RecyclingMachine Class Diagram
Complete the class diagram of your final Recycling class here…
RecyclingMachine
Balance:float
select_product()
accept_product()
identify_product()
receipt()
Assignment Part 2 – Activity Flowchart
Insert your activity flowchart of the recycling machine process here… If your flowchart is large then place it on the...