Question

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..

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)

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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

menuProcess
a - add item
r - Delete item
c - Change item value quanty
i - Output items' descrip
o - result cart_shopping
q - exit

Choose an option: a

ADD ITEM
please Enter item name: Biscuit

please Enter the item descrpt: With added flavour and maida

please Enter the item price: 10

please Enter the item quanty: 5

menuProcess
a - add item
r - Delete item
c - Change item value quanty
i - Output items' descrip
o - result cart_shopping
q - exit

Choose an option: a

ADD ITEM
please Enter item name: Chocolate

please Enter the item descrpt: With milk

please Enter the item price: 14

please Enter the item quanty: 2

menuProcess
a - add item
r - Delete item
c - Change item value quanty
i - Output items' descrip
o - result cart_shopping
q - exit

Choose an option: o

OUTPUT
Michael Merk's cart_shopping - 12/01/2015
Numb of Items: 7

Biscuit 5 @ $10 = $50
Chocolate 2 @ $14 = $28

Total: $78

menuProcess
a - add item
r - Delete item
c - Change item value quanty
i - Output items' descrip
o - result cart_shopping
q - exit

Choose an option: r

REMOVE ITEM
please Enter name to delete: Chocolate

menuProcess
a - add item
r - Delete item
c - Change item value quanty
i - Output items' descrip
o - result cart_shopping
q - exit

Choose an option: o

OUTPUT
Michael Merk's cart_shopping - 12/01/2015
Numb of Items: 5

Biscuit 5 @ $10 = $50

Total: $50

menuProcess
a - add item
r - Delete item
c - Change item value quanty
i - Output items' descrip
o - result cart_shopping
q - exit

Choose an option: c

CHANGE QUANTITY
please Enter name: Biscuit
please Enter quantity: 7

menuProcess
a - add item
r - Delete item
c - Change item value quanty
i - Output items' descrip
o - result cart_shopping
q - exit

Choose an option: o

OUTPUT
Michael Merk's cart_shopping - 12/01/2015
Numb of Items: 7

Biscuit 7 @ $10 = $70

Total: $70

menuProcess
a - add item
r - Delete item
c - Change item value quanty
i - Output items' descrip
o - result cart_shopping
q - exit

Choose an option: i

OUTPUT values' DESCRIPTIONS
Michael Merk's cart_shopping - 12/01/2015

Item desrip
Biscuit: With added flavour and maida

menuProcess
a - add item
r - Delete item
c - Change item value quanty
i - Output items' descrip
o - result cart_shopping
q - exit

Choose an option: q

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