Methods with the same name in one class in Python

Question

How can I declare a few methods with the same name, but with different numbers of parameters or different types in one class?

What must I change in the following class?

Answer 1

Python is nothing like Java.

There are not really types, just objects with methods.

There is a way to test if a passed object is from a class, but it is mainly bad practices.

However, the code you want to produce for the two first methods should be something like

class MyClass(object):
    def my_method(self, str1, str2=None):
        print str1
        if str2: print str2

For the third, well... Use a different name...