pizza.py

class pizza:

    regular={1:('Pepperoni',300),2:('Farmhouse',250),3:('Margherita',200),4:('Peri-Peri Chicken',300),5:('Chicken Dominator',350)}
    addons={1:('mushrooms',30),2:('olives',25),3:('bbq chicken',50),4:('extra cheese',40),5:('None',0)}
    size={1:'8"',2:'10"'}

    def __init__(self,n,e,s):   # n = pizza serial no , e = extra addons , s = size
        self.n=n
        self.e=e
        self.s=s


    @classmethod
    def order(cls):
        print("choose your pizza: ")    # pizza type ( n )
        for k in pizza.regular:
            print(str(k)+"-"+pizza.regular[k][0]+" Rs "+str(pizza.regular[k][1])+"/-")
        n=int(input())

        print("choose pizza.addons:\n")     # addons ( e )
        for k in pizza.addons:
            print(str(k)+"-"+pizza.addons[k][0]+" Rs "+str(pizza.addons[k][1])+"/-")
        print()
        e=input().split()
        e=list(map(int,e))

        print("Choose size\n")          # size ( s )
        for k in pizza.size:
            print(str(k)+"- "+pizza.size[k])
        print('50%  extra price for 10" pizza')
        s=int(input())

        return cls(n,e,s)

    def price(self):
        p=pizza.regular[self.n][1]
        for i in self.e:
            p=p+pizza.addons[i][1]
        if self.s==2:
            p=p*1.5
        return p

    def __str__(self):
        l=[]
        for i in self.e:
            l.append(pizza.addons[i][0])
        return pizza.regular[self.n][0]+", size = "+pizza.size[self.s]+", Addons - "+", ".join(l)+" , Rs - "+str(self.price())

pizzas=[]
print("\nWelcome to Papa Pizza\n")
while True:
    i=int(input("What would you like to do?\n\n1 = order pizza\n2 = get bill\n3 = exit\n"))
    print()
    if i == 1:
        pizzas.append(pizza.order())
    elif i == 2:
        if pizzas==[]:
            print("No pizzas ordered\n")
        else:
            for obj in pizzas:
                print(obj)
            print()
    else:
        break