I want to be able to print out the name, quantity, item and price but "format" isn't working.

class HousemateHelper: def __init__(self): pass def addPurchase(self,Name=input("What is your name:"),Item=input("What did you buy:"),Quantity=input("How much did you buy:"),Cost=float(input("How much was the cost:"))): self.name= Name self.item=Item self.quatity=Quantity self.cost=Cost print("{},{},{} and {}".format(self.name,self.item,self.quantity.self.cost))

#def getInventory(self,items):

f= HousemateHelper()