ShoppingList.py

class ShoppingList:
  cart = {}
  
  def __init__(self):
    pass
  def add_item(self,name,price):
    self.cart[name] = price
  def remove_item(self,name):
    if name in self.cart:
      del(self.cart[name])
  def get_total(self):
    s = 0
    for items in self.cart:
      s+=self.cart[items]
    return s

walmart = ShoppingList()
walmart.add_item("shampoo",5)
walmart.add_item("banana",2)
walmart.add_item("bicycle",100)
print walmart.get_total()
walmart.remove_item("banana")
print walmart.get_total()