Can I convert a namespace object from mutable to immutable?

Question

I receive a namespace object from command line arguments. And I don\'t want to modify it. Can I do that or do you have some ideas?

# -*- coding: utf-8 -*-

impo         


        

Answer 1

You can redefine __setattr__ in your mutable_namespace:

class NotMutableException(Exception):pass

class SomeObject(object):
    def init(self):
        self.x = 10
        self.y = 20

some_obj = SomeObject()
some_obj.z = 30

def not_setattr(self, name, value):
    raise NotMutableException

type(some_obj).__setattr__ = not_setattr

some_obj.a = 1000