Question

Is it possible to add a method to an object class, and use it on all objects?

Answer 1

In Python attributes are implemented using a dictionary :

>>> t = test()
>>> t.__dict__["foo"] = "bla"
>>> t.foo
'bla'

But for “object”, it uses a ‘dictproxy’ as an interface to prevent such assignement :

>>> object.__dict__["test"] = "test"
TypeError: 'dictproxy' object does not support item assignment

So no, you can’t.

NB : you can’t modify the metaclass Type directly neither. But as Python is very flexible, I am sure a Guru could find a way to achieve what you want. Any black wizard around here 🙂 ?