Question

Does Python have extension methods like C#? Is it possible to call a method like:

MyRandomMethod() 

on existing types like int?

myInt.MyRandomMethod() 

Answer 1

You can add whatever methods you like on class objects defined in Python code (AKA monkey patching):

>>> class A(object): >>>     pass   >>> def stuff(self): >>>     print self  >>> A.test = stuff >>> A().test() 

This does not work on builtin types, because their __dict__ is not writable (it’s a dictproxy).

So no, there is no ‘real’ extension method mechanism in Python.