Define a class with optional argument in Python

Question

class class1():
    def setdata(self,value1, value2):
    self.data = value1+value2
def display(self):
    print(self.data)

For the above code, when I

Answer 1

class class1:    
    def setdata(self,value1, value2=456):
        self.data = value1+value2
    def display(self):
        print(self.data)

may be this solves your problem