ItemToPurchase.py

class ItemToPurchase:
	# Parameterized constructor with default values helping to act like a default constructor.
	def __init__(self, item_name: str = "none", item_price: float = 0, item_quantity: int = 0, item_description = "none"):
		self.item_name = item_name
		self.item_price = item_price
		self.item_quantity = item_quantity
		self.item_description = item_description

	# Method to calculate total cost.
	def get_item_cost(self):
                return self.item_price * self.item_quantity
	
	# Method to calculate and print the cost.
	def print_item_cost(self):
		print('{: ^100}'.format(f"{self.item_name} {self.item_quantity} @ ${self.item_price:.0f} = ${(self.get_item_cost()):.0f}"))

	# Method to print item description.
	def print_item_description(self):
                print('{: ^100}'.format(f"{self.item_name}: {self.item_description}"))

	# Method to calculate and print the total cost.
	def print_total(self, other_item):
		print("\nTOTAL COST\n")
		self.print_item_cost()
		other_item.print_item_cost()
		print(f"Total: ${((self.get_item_cost()) + (other_item.get_item_cost())):.0f}")

	# Method to update quantity.
	def update_quantity(self, quantity):
                self.item_quantity = quantity


if __name__ == "__main__":
        # Taking user's input for creating two items.
        print("\nItem1\n")
        item1 = ItemToPurchase(input("\nEnter the item name:\n"), float(input("\nEnter the item price:\n")), int(input("\nEnter the item quantity:\n")))

        print("\nItem2\n")
        item2 = ItemToPurchase(input("\nEnter the item name:\n"), float(input("\nEnter the item price:\n")), int(input("\nEnter the item quantity:\n")))

        # Printing total
        item1.print_total(item2)