Question

Python 2. Please ensure you run the tests in idle

Write a function orderPizza that allows the user input to build a pizza. It then prints a thank you message, the cost of the pizza and then returns the Pizza that was built.

>>> orderPizza()

Welcome to Python Pizza!

What size pizza would you like (S,M,L): M

Type topping to add (or Enter to quit): mushroom

Type topping to add (or Enter to quit): onion

Type topping to add (or Enter to quit): garlic

Type topping to add (or Enter to quit):

Thanks for ordering!

Your pizza costs $14.299999999999999

Pizza('M',{'mushroom', 'onion', 'garlic'})

>>> orderPizza()

Welcome to Python Pizza!

What size pizza would you like (S,M,L): L

Type topping to add (or Enter to quit): calamari

Type topping to add (or Enter to quit): garlic

Type topping to add (or Enter to quit):

Thanks for ordering!

Your pizza costs $16.65

Pizza('L',{'garlic', 'calamari'})

>>> p=orderPizza()

Welcome to Python Pizza!

What size pizza would you like (S,M,L): S

Type topping to add (or Enter to quit):

Thanks for ordering!

Your pizza costs $6.25

>>> p

Pizza('S',set())

>>>

please run this tests in idle to ensure it is correct

##### orderPizza #####

>>> orderPizza()==Pizza('M',{'garlic', 'onion', 'mushroom'})

Welcome to Python Pizza!

What size pizza would you like (S,M,L): Type topping to add (or Enter to quit): Type topping to add (or Enter to quit): Type topping to add (or Enter to quit): Type topping to add (or Enter to quit): Thanks for ordering!

Your pizza costs $14.299999999999999

True

>>> orderPizza()==Pizza('L',{'calamari', 'garlic'})

Welcome to Python Pizza!

What size pizza would you like (S,M,L): Type topping to add (or Enter to quit): Type topping to add (or Enter to quit): Type topping to add (or Enter to quit): Thanks for ordering!

Your pizza costs $16.65

True

>>> orderPizza()==Pizza('S',set())

Welcome to Python Pizza!

What size pizza would you like (S,M,L): Type topping to add (or Enter to quit): Thanks for ordering!

Your pizza costs $6.25

True

##### stdin back #####

put stdin back to original, again, shouldnt cause error

>>> sys.stdin = si # return stdin

Answer 1

class Pizza:

def __init__(self, builder):

self.builder = builder

self.pizzaObj = self.__ComputeCost__(builder)

def getPizzaObj(self):

return self.pizzaObj

def __ComputeCost__(self, builder):

cost = builder.pizzaBase[1]

items = []

if builder.mushroom[0]:

cost = cost + builder.mushroom[1]

items.append("mushroom")

if builder.garlic[0]:

cost = cost + builder.garlic[1]

items.append("garlic")

if builder.onion[0]:

cost = cost + builder.onion[1]

items.append("onion")

if builder.calamari[0]:

cost = cost + builder.calamari[1]

items.append("calamari")

return (cost, items)

class PizzaBuilder:

def __init__(self, size, basePrice):

self.pizzaBase = (size, basePrice) # 10 is the base cost

self.mushroom, self.onion = (False, 0), (False, 0)

self.garlic, self.calamari = (False, 0), (False, 0)

def AddMushroom(self):

self.mushroom = (True, 2)

return self

def AddGarlic(self):

self.garlic = (True, 2)

return self

def AddOnion(self):

self.onion = (True, 1)

return self

def AddCalamari(self):

self.calamari = (True, 3)

return self

def Build(self):

return Pizza(self)

if __name__ == '__main__':

pizzaSize = 'start'

while pizzaSize != "q":

print("Welcome To Python Pizza")

pizzaSize = input("Please Select the Size of the Pizza (S, M, L):").strip()

if pizzaSize == 'S' or pizzaSize == 's':

cost = 10

elif pizzaSize == 'M' or pizzaSize=='m':

cost = 15

elif pizzaSize == 'L' or pizzaSize == 'l':

cost = 20

else:

print("Invalid Choice", pizzaSize, " " , "(Available Sizes are: S, M, L) Try Again. To Quit (Type q to quit" )

continue

pizzaObj = PizzaBuilder(pizzaSize, cost)

topping = -1

while topping !=0:

topping = int(input("Please Choose the Topping Available (Mushroom(1), Garlic(2), Onion(3), Calamari(4), To Place Order(0): ").strip())

if topping == 1:

pizzaObj = pizzaObj.AddMushroom()

elif topping == 2:

pizzaObj = pizzaObj.AddGarlic()

elif topping == 3:

pizzaObj = pizzaObj.AddOnion()

elif topping == 4:

pizzaObj = pizzaObj.AddCalamari()

pizza = pizzaObj.Build()

obj = pizza.getPizzaObj()

print("Your Pizza Costs: ", obj[0] )

print(f'Your Pizza({pizzaSize, obj[1]})')