Python3 programming help needed LAB*: Program: Online shopping cart (continued) Need the below code edited to run prope...

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Question

Python3 programming help needed LAB*: Program: Online shopping cart (continued) Need the below code edited to run prope...

Python3 programming help needed LAB*: Program: Online shopping cart (continued)

Need the below code edited to run properly for the lab..

class ItemPurchase:

def __init__(self, nameitem='none', item_prc=0, item_quntity=0, item_descrp = 'none'):

self.nameitem = nameitem

self.item_prc = item_prc

self.item_quntity = item_quntity

self.item_descrp = item_descrp

def print_itemvaluecost(self):

string = '{} {} @ ${} = ${}'.format(self.nameitem, self.item_quntity, self.item_prc(self.item_quntity * self.item_prc))

valuecost = self.item_quntity * self.item_prc

return string, valuecost

def print_itemdescription(self):

string = '{}: {}'.format(self.nameitem, self.item_descrp)

print(string , end='\n')

return string

class Shopping_Cart:

#Parameter Constructor

def __init__(self, cust_name = 'none', currentdate = 'January 1, 2017', cartitems = []):

self.cust_name = cust_name

self.currentdate = currentdate

self.cartitems = cartitems

def additem(self, string):

print('\nADD ITEM ' , end='\n')

nameitem = str(input('please Enter item name: '))

item_descrp = str(input('\n please Enter the item descrpt: '))

item_prc = int(input('\nplease Enter the item price: '))

item_quntity = int(input('\n please Enter the item quanty: '))

self.cartitems.append(ItemPurchase(nameitem, item_prc, item_quntity, item_descrp))

def removeitem(self):

print('\nREMOVE ITEM ',end='\n')

string = str(input('please Enter name to delete: '))

i1 = 0

for item1 in self.cartitems:

if(item1.nameitem == string):

del self.cartitems[i1]

i1 += 1

flagvalue=True

break

else:

flagvalue=False

if(flagvalue==False):

print('Item could not found . Nothing removed')

def modifiedtem(self):

print('\nCHANGE QUANTITY' , end='\n')

name1 = str(input('please Enter name: '))

for item1 in self.cartitems:

if(item1.nameitem == name1):

quantity1 = int(input('please Enter quantity: '))

item1.item_quntity = quantity1

flagvalue=True

break

else:

flagvalue=False

if(flagvalue==False):

print('do not be modified')

def get_numberitems_cart(self):

numitems=0

for item1 in self.cartitems:

numitems= numitems+item1.item_quntity

return numitems

def get_valuecost_of_cart(self):

total_valuecost = 0

valuecost = 0

for item1 in self.cartitems:

valuecost = (item1.item_quntity * item1.item_prc)

total_valuecost += valuecost

return total_valuecost

def displaytotal():

total_valuecost = get_valuecost_of_cart()

if (total_valuecost == 0):

print('empty cart')

else:

result_cart()

def printdescrip(self):

print('\nOUTPUT values\' DESCRIPTIONS')

print('{}\'s cart_shopping - {}'.format(self.cust_name, self.currentdate) , end='\n')

print('\nItem desrip' , end='\n')

for item1 in self.cartitems:

print('{}: {}'.format(item1.nameitem, item1.item_descrp) , end='\n')

def result_cart(self):

new1=Shopping_Cart()

print('\nOUTPUT', end='\n')

print('{}\'s cart_shopping - {}'.format(self.cust_name, self.currentdate))

print('Numb of Items:', new1.get_numberitems_cart(), end='\n\n')

tc1 = 0

for item1 in self.cartitems:

print('{} {} @ ${} = ${}'.format(item1.nameitem, item1.item_quntity,

item1.item_prc, (item1.item_quntity * item1.item_prc)))

tc1 += (item1.item_quntity * item1.item_prc)

print('\nTotal: ${}'.format(tc1),end='\n')

def display_menuProcess(Shopping_Cart):

customerCart = newCart

string=''

menuProcess = ('\nmenuProcess\n'

'a - add item \n'

'r - Delete item \n'

'c - Change item value quanty\n'

'i - Output items\' descrip\n'

'o - result cart_shopping\n'

'q - exit\n')

cmd = ''

while(cmd != 'q'):

string=''

print(menuProcess , end='\n')

cmd = input('Choose an option: ')

while(cmd != 'a' and cmd != 'o' and cmd != 'i' and cmd != 'r'and cmd != 'c' and cmd != 'q'):

cmd = input('Choose an choice: ')

if(cmd == 'a'):

customerCart.additem(string)

if(cmd == 'o'):

customerCart.result_cart()

if(cmd == 'i'):

customerCart.printdescrip()

if(cmd == 'r'):

customerCart.removeitem()

if(cmd == 'c'):

customerCart.modifiedtem()

cust_name = str(input('please Enter cust\'s name: \n'))

currentdate = str(input('\nplease Enter today\'s date: \n'))

print('Customer name:', cust_name , end='\n')

print('Today date:', currentdate , end='\n')

newCart = Shopping_Cart(cust_name, currentdate)

display_menuProcess(newCart)

That is what I have so far.. it only passes the first three.. the rest get errored out..

engineering Computer-Science

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Answer 1

Answer #1

Screenshot

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Program

#Create a class Item purchase
class ItemPurchase:
    #Constructor
    def __init__(self, nameitem='none', item_prc=0, item_quntity=0, item_descrp = 'none'):
        self.nameitem = nameitem
        self.item_prc = item_prc
        self.item_quntity = item_quntity
        self.item_descrp = item_descrp
    #Print item details
    def print_itemvaluecost(self):
        string = '{} {} @ ${} = ${}'.format(self.nameitem, self.item_quntity, self.item_prc(self.item_quntity * self.item_prc))
        valuecost = self.item_quntity * self.item_prc
        return string, valuecost
    #To print item description
    def print_itemdescription(self):
        string = '{}: {}'.format(self.nameitem, self.item_descrp)
        print(string , end='\n')
        return string
#Create a shopping cart class
class Shopping_Cart:
    #Parameter Constructor
    def __init__(self, cust_name = 'none', currentdate = 'January 1, 2017', cartitems = []):
        self.cust_name = cust_name
        self.currentdate = currentdate
        self.cartitems = cartitems
    #Add an item
    def additem(self, string):
        print('\nADD ITEM ' , end='\n')
        nameitem = str(input('please Enter item name: '))
        item_descrp = str(input('\n please Enter the item descrpt: '))
        item_prc = int(input('\nplease Enter the item price: '))
        item_quntity = int(input('\n please Enter the item quanty: '))
        self.cartitems.append(ItemPurchase(nameitem, item_prc, item_quntity, item_descrp))
    #remove from cart
    def removeitem(self):
        print('\nREMOVE ITEM ',end='\n')
        string = str(input('please Enter name to delete: '))
        i1 = 0
        #loop through the cart
        for item1 in self.cartitems:
            if(item1.nameitem == string):
                del self.cartitems[i1]
                flagvalue=True
                break
            else:
                i1 += 1
                flagvalue=False
        #If not found
        if(flagvalue==False):
            print('Item could not found . Nothing removed')
    #Method to modify quantity of cart
    def modifiedtem(self):
        print('\nCHANGE QUANTITY' , end='\n')
        name1 = str(input('please Enter name: '))
        #Loop through the cart
        for item1 in self.cartitems:
            if(item1.nameitem == name1):
                quantity1 = int(input('please Enter quantity: '))
                item1.item_quntity = quantity1
                flagvalue=True
                break
            else:
                flagvalue=False

        #If not found
        if(flagvalue==False):
            print('do not be modified')
     #Method to find number of items in cart
    def get_numberitems_cart(self):
        numitems=0
        for item1 in self.cartitems:
            numitems= numitems+item1.item_quntity
        return numitems
    #Method to get price of the cart
    def get_valuecost_of_cart(self):
        total_valuecost = 0
        valuecost = 0
        for item1 in self.cartitems:
            valuecost = (item1.item_quntity * item1.item_prc)
            total_valuecost += valuecost
        return total_valuecost
    #Display total
    def displaytotal():
        total_valuecost = get_valuecost_of_cart()
        if (total_valuecost == 0):
            print('empty cart')
        else:
            result_cart()
    #Method to print description of items in cart
    def printdescrip(self):
        print('\nOUTPUT values\' DESCRIPTIONS')
        print('{}\'s cart_shopping - {}'.format(self.cust_name, self.currentdate) , end='\n')
        print('\nItem desrip' , end='\n')
        for item1 in self.cartitems:
            print('{}: {}'.format(item1.nameitem, item1.item_descrp) , end='\n')
    #Print cart
    def result_cart(self):
        new1=Shopping_Cart()
        print('\nOUTPUT', end='\n')
        print('{}\'s cart_shopping - {}'.format(self.cust_name, self.currentdate))
        print('Numb of Items:', new1.get_numberitems_cart(), end='\n\n')
        tc1 = 0
        for item1 in self.cartitems:
            print('{} {} @ ${} = ${}'.format(item1.nameitem, item1.item_quntity,
                                             item1.item_prc, (item1.item_quntity * item1.item_prc)))
            tc1 += (item1.item_quntity * item1.item_prc)
        print('\nTotal: ${}'.format(tc1),end='\n')
#to display menu for user
def display_menuProcess(Shopping_Cart):
    customerCart = newCart
    string=''
    menuProcess = ('\nmenuProcess\n'
    'a - add item \n'
    'r - Delete item \n'
    'c - Change item value quanty\n'
    'i - Output items\' descrip\n'
    'o - result cart_shopping\n'
    'q - exit\n')
    cmd = ''
    while(cmd != 'q'):
        string=''
        print(menuProcess , end='\n')
        cmd = input('Choose an option: ')
        while(cmd != 'a' and cmd != 'o' and cmd != 'i' and cmd != 'r'and cmd != 'c' and cmd != 'q'):
            cmd = input('Choose an choice: ')
        if(cmd == 'a'):
            customerCart.additem(string)
        if(cmd == 'o'):
            customerCart.result_cart()
        if(cmd == 'i'):
            customerCart.printdescrip()
        if(cmd == 'r'):
            customerCart.removeitem()
        if(cmd == 'c'):
            customerCart.modifiedtem()
#User input for customer name and date
cust_name = str(input('please Enter cust\'s name: \n'))
currentdate = str(input('\nplease Enter today\'s date: \n'))
print('Customer name:', cust_name , end='\n')
print('Today date:', currentdate , end='\n')
newCart = Shopping_Cart(cust_name, currentdate)
#Call method for menu
display_menuProcess(newCart)

----------------------------------------------------------------------------------

Output

please Enter cust's name:
Michael Merk

please Enter today's date:
12/01/2015
Customer name: Michael Merk
Today date: 12/01/2015