noordean:

LOL

ymee:
I beg make una help me out o time dey go. here is my problem

HST2: OBJECT ORIENTED PROGRAMMING LAB

Create a class called ShoppingCart.

Create a constructor that takes no arguments and sets the total attribute to zero, and initializes an empty dict attribute named items.

Create a method add_item that requires item_name, quantity and price arguments. This method should add the cost of the added items to the current value of total. It should also add an entry to the items dict such that the key is the item_name and the value is the quantity of the item.

Create a method remove_item that requires similar arguments as add_item. It should remove items that have been added to the shopping cart and are not required. This method should deduct the cost of the removed items from the current total and also update the items dict accordingly.

If the quantity of an item to be removed exceeds the current quantity of that item in the cart, assume that all entries of that item are to be removed.

Create a method checkout that takes in cash_paid and returns the value of balance from the payment. If cash_paid is not enough to cover the total, return "Cash paid not enough".

Create a class called Shop that has a constructor which takes no arguments and initializes an attribute called quantity at 100.

Make sure Shop inherits from ShoppingCart.

In the Shop class, override the remove_item method, such that calling Shop's remove_item with no arguments decrements quantity by one.

gudchyld:
@voltz.....Its the keyerror(mango,) thingy

my guess it has to do with removing items completely...I dont reaaly know how

voltz:
What error are you getting?

voltz:
add_item:
add total price of quantity to total instance variable
if the item is in the dict
then add quantity to the value of the item in the list.
else add item to the dict with value as quantity

remove_item:
if item is in the dictionary then:
***if quantity > items[item_name] then
deduct (price * item[item_name]) from total
delete item from dictionary
***else deduct (price * quantity) from total
deduct quantity from item[item_name]

gudchyld:
Yeah!!! 100% completed.................okay bring it on

voltz:
say, how long does it take for the interview invite after one completes the test?

voltz:

Nice and extra time to spare!

gudchyld:
Yeah!!! 100% completed.................okay bring it on

OSI7:

Havin issues with shopping cart's hidden test. Tips ?

voltz:

still need help?

kemus:


Please having same issues. Would appreciate some help

class ShoppingCart(object):

def __init__(self):
self.total = 0
self.items = {}

def add_item(self,item_name,quantity,price):

self.items[item_name] = quantity
self.total += price*quantity



def remove_item(self,item_name,quantity,price):
if quantity < self.items[item_name] and quantity >= 0:
self.total -= price*quantity
self.items[item_name] -= quantity
elif quantity >= self.items[item_name] :
del self.items[item_name]

def checkout(self,cash_paid):
if cash_paid >= self.total:
return cash_paid - self.total
else:
return "Cash paid not enough"

class Shop(ShoppingCart):

def __init__(self):
self.quantity = 100

def remove_item(self):
self.quantity -= 1

voltz:

still need help?

OSI7:


Thanks Brother @voltz, not anymore, gudchyld helped me out. looking thru your code @ kemus

gudchyld:
Yeah!!! 100% completed.................okay bring it on

phililp:
u all here begging for how to do it... if u cant walk through that test on your own then andela probably isnt a place for you.

aint you guys asking urself how people who did it managed to do it?.... stop begging for anwers. go study well and all this stuffs will be a piece of
shit. if u suceed in bypassing this what will u do in the next phase... i bet u cant do same.

so common mern! for once challenge urself and go upgrade ur skills... take ur time and come back to become a boss... dont beg for how to do it
here.. andela dont need people who cant fix this.

voltz:

Very true, i read all the 132 pages and i understand the boot-camp is a grinding machine! so if you don't have good problem solving skill right now then you'll be wasting your time and money going to the boot-camp if you're called.

Bahddo:
exactly! Some people copy and paste code just to make it to the interviews and then sweet-talk their interviewers, only to struggle badly with first week tasks in the Bootcamp. What's the use?

Bootcamp is even child's play compared with the simulations that one would face in the first 3 months of fellowship.

The truth is that Andela is tough, and it's not a humanitarian organization seeking to teach you stuff just like that. It's a business organization looking for the brightest minds to do their work for them. The earlier one realizes that and works on his skills, the better.

phililp:
i even wonder why they said one doesn't need a coding experience to apply...from my observation its either a blunt truth of a fat lie.







by the way; does anybody know how much they pay fellows monthly?

#meanwhile::: am am right here in "learnpyhon.org" still fixing myself for the next application.. anyone have ideas when it'll start??

kposedaddy:
please i am really stuck and frustrated.....and tomorrow is the deadline...can someone please help me look at this code and tell me what is wrong................this is message it gives me

######### CHANGES MADE ###############
THERE IS AN ERROR/BUG IN YOUR CODE
Results:


Please re-read the instructions and check your code for non-implemented features.

Make sure to complete all of them before submitting.

Here is the relevant part of the stack trace:

KeyError('Mango',),







This is my code here........

class ShoppingCart(object):
def __init__(self):
self.total = 0
self.items = {}

def add_item(self, item_name, quantity, price):
# changed
if item_name in self.ltems:
self.items[item_name] += quantity
else:
self.items[item_name] = quantity
cost = quantity * price
self.total = (self.total + cost)

def remove_item(self, item_name, quantity, price):
if quantity > self.items[item_name]:
self.total -= (self.items[item_name] * price)
if item_name in self.items:
del self.items[item_name]
else:
self.total -= (quantity * price)
if item_name in self.items:
# changed
self.items[item_name] -= quantity

def checkout(self, cash_paid):
# changed
if cash_paid < self.total:
return "Cash paid not enough"
else:
return cash_paid - self.total

class Shop(ShoppingCart):
def __init__(self):
# changed
super(Shop, self).__init__()
self.quantity = 100

def remove_item(self):
# changed
self.quantity -= 1


ASSISTED......

voltz:
[/quote][quote author=kposedaddy post=55563963]please i am really stuck and frustrated.....and tomorrow is the deadline...can someone please help me look at this code and tell me what is wrong................this is message it gives me

THERE IS AN ERROR/BUG IN YOUR CODE
Results:


Please re-read the instructions and check your code for non-implemented features.

Make sure to complete all of them before submitting.

Here is the relevant part of the stack trace:

KeyError('Mango',),







This is my code here........

class ShoppingCart(object):
def __init__(self):
self.total = 0
self.items = {}

def add_item(self, item_name, quantity, price):
self.products = self.items[item_name] = quantity
self.cost = quantity * price
self.total = (self.total + self.cost)

def remove_item(self, item_name, quantity, price):
if quantity > self.items[item_name]:
self.total -= (self.items[item_name] * price)
if item_name in self.items:
del self.items[item_name]
else:
self.total -= (quantity * price)
if item_name in self.items:
del self.items[item_name]

def checkout(self, cash_paid):

if cash_paid < self.total:
return "Cash paid not enough"
else:
self.balance = cash_paid - self.total
self.total = 0
self.items = {}
return self.total

class Shop(ShoppingCart):
def __init__(self, quantity=100):
super(Shop, self).__init__()
self.quantity = quantity

def remove_item(self):
self.quantity -= 1
return self.quantity


PLEASE ASSIST......