How do I use method overloading in Python?

Question

I want to implement function overloading in Python:

class A:

    def fun1(self):    

        print 'first method'

    def fun1(self, i):

        print 'second method', i

ob=A()

ob.fun1(2)

but the result is second method 2; similarly:

class A:

    def fun(self):    

        print 'first method'

    def fun(self, i):

        print 'second method', i

ob=A()

ob.fun()

#gives

Traceback (most recent call last):

  File "my.py", line 9, in <module>

    ob.fun()

TypeError: fun() takes exactly 2 arguments (1 given)

How do I make this implement?

Answer 1

Please be informed that it is method overloading, not method overriding. And in Python, you can perform it all in one function:

class A:

    def fun(self, i='some_default_value'):

        print 'only method'

ob=A()

ob.fun(2)

ob.fun()

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