CMPSC 206 Ch 9 Program Online shopping Cart Python Assignment
CMPSC 206 Ch 9 Program Online shopping Cart Python Assignment
LAB
ACTIVITY
16.23.1: Ch 9 Program: Online shopping cart (continued) (Python 3)
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main.py
Load default template…
class ItemToPurchase:
def __init__(self, item_name= ‘none’, item_price=0, item_quantity=0, item_description = ‘none’):
self.item_name = item_name
self.item_price = item_price
self.item_quantity = item_quantity
self.item_description = item_description
def print_item_cost(self):
string = ‘{} {} @ ${} = ${}’.format(self.item_name, self.item_quantity, self.item_price, (self.item_quantity
* self.item_price))
cost = self.item_quantity * self.item_price
return string, cost
def print_item_description(self):
string = ‘{}: {}’.format(self.item_name, self.item_description)
print(string, end=’ ‘)
return string
class ShoppingCart:
def __init__(self,customer_name= None ,current_date=’January 1,2016′,cart_items=[]):
self.customer_name = customer_name
self.current_date = current_date
self.cart_items = cart_items
def add_item(self,):
print(‘nADD ITEM TO CART’, end=’n’)
#prompt the name and description of item,price and Quentity
item_name = str(input(‘Enter the item name:’));
item_description = str(input(‘nEnter the item description:’));
item_price = int(input(‘nEnter the item price:’));
item_quantity = int(input(‘nEnter the item quantity:n’))
#Append the above values in to the list
self.cart_items.append(ItemToPurchase(item_name, item_price, item_quantity, item_description))
#Implement the method to delete the item in the cart
def remove_item(self):
print()
print(‘REMOVE ITEM FROM CART’, end=’n’)
#prompt the item to remove the list
string = str(input(‘Enter name of item to remove:n’))
i = 0
#Using for-loop to iterate every item
for item in self.cart_items:
#If item found delete in the list
if(item.item_name == string):
del self.cart_items[i]
i += 1
#set the flag value to true
#break from the list
flag=True
break
#Otherwiese set value to false
else:
flag=False
#IF the value not found
if(flag==False):
#print the message
print(‘Item not found in cart. Nothing removed.’)
def modify_item(self):
print(‘nCHANGE ITEM QUANTITY’, end=’n’)
#Prompt the input item
name = str(input(‘Enter the item name:’))
#Using for-loop to iterate every item
for item in self.cart_items:
#If item found update Quantity in the list
if(item.item_name == name):
quantity = int(input(‘Enter the new quantity:’))
item.item_quantity = quantity
#set the flag value to true
#break from the list
flag=True
break
#Otherwiese set value to false
else:
flag=False
#IF the value not found
if(flag==False):
#print the message
print(‘Item not found in cart. Nothing modified.’)
#implement method to compute total number of items in the cart
def get_num_items_in_cart(self):
num_items = 0
#Using for-loop to iterate the cart
for item in self.cart_items:
#ADD the Quantities
num_items += item.item_quantity
#return the num_Items
return num_items
#Implement the method
def get_cost_of_cart(self):
total_cost = 0
cost = 0
#Using for-loop to iterate the list
#mulitply the price and Quantity
#add value to the Total_Cost
for item in self.cart_items:
cost = (item.item_quantity * item.item_price)
total_cost += cost
#return the value
return total_cost
#Implement the method to print the total
def print_total():
total_cost = self.get_cost_of_cart()
if (total_cost == 0):
print(‘SHOPPING CART IS EMPTY’)
else:
output_cart()
#Implement the method to print_descriptions
def print_descriptions(self):
print(‘OUTPUT ITEMS’ DESCRIPTIONS’)
print(‘{}’s Shopping Cart – {}’.format(self.customer_name, self.current_date),end=’n’)
print(‘nItem Descriptions’, end=’n’)
for item in self.cart_items:
print(‘{}: {}’.format(item.item_name, item.item_description), end=’n’)
#Implement the method output_cart()
def output_cart(self):
new=ShoppingCart()
print(‘OUTPUT SHOPPING CART’, end=’n’)
print(‘{}’s Shopping Cart – {}’.format(self.customer_name, self.current_date),end=’n’)
print(‘Number of Items:’, new.get_num_items_in_cart(), end=’nn’)
self.total_cost = self.get_cost_of_cart()
if (self.total_cost == 0):
print(‘SHOPPING CART IS EMPTY’)
else:
pass
tc = 0
for item in self.cart_items:
print(‘{} {} @ ${} = ${}’.format(item.item_name, item.item_quantity,
item.item_price, (item.item_quantity * item.item_price)), end=’n’)
tc += (item.item_quantity * item.item_price)
print(‘nTotal: ${}’.format(tc), end=’n’)
#Implement the method print_menu
def print_menu(new_cart):
customer_Cart = newCart
string=”
#declare the string menu
menu = (‘nMENUn’
‘a – Add item to cartn’
‘r – Remove item from cartn’
‘c – Change item quantityn’
‘i – Output items’ descriptionsn’
‘o – Output shopping cartn’
‘q – Quitn’)
command = ”
#Using while loop
#to iterate until user enters q
while(command != ‘q’):
string=”
print(‘nMENUn’
‘a – Add item to cartn’
‘r – Remove item from cartn’
‘c – Change item quantityn’
‘i – Output items’ descriptionsn’
‘o – Output shopping cartn’
‘q – Quitn’, end=’n’)
#Prompt the Command
command = input(‘Choose an option:’)
print()
#repeat the loop until user enters a,i,r,c,q commands
while(command != ‘a’ and command != ‘o’ and command != ‘i’ and command != ‘r’ and command != ‘c’ and command != ‘q’):
command = input(‘Choose an option:n’)
#If the input command is a
if(command == ‘a’):
#call the method to the add elements to the cart
customer_Cart.add_item()
#If the input command is o
if(command == ‘o’):
#call the method to the display the elements in the cart
customer_Cart.output_cart()
#If the input command is i
if(command == ‘i’):
#call the method to the display the elements in the cart
customer_Cart.print_descriptions()
#If the input command is i
if(command == ‘r’):
customer_Cart.remove_item()
if(command == ‘c’):
customer_Cart.modify_item()
# Type main section of code here
if __name__ == “__main__”:
# Type main section of code here
customer_name = str(input(‘Enter customer’s name:’))
current_date = str(input(‘nEnter today’s date:’))
print()
print()
print(‘Customer name:’, customer_name, end=’n’)
print(‘Today’s date:’, current_date, end=’n’)
newCart = ShoppingCart(customer_name, current_date)
print_menu(newCart)
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