Overriding "__setattr__" of a module - possible?

[Lie Ryan]

On 06/16/10 12:43, John Nagle wrote:
>   Is it possible to override "__setattr__" of a module?  I
> want to capture changes to global variables for debug purposes.
> 
>   None of the following seem to have any effect.
> 
>     modu.__setattr__ = myfn
> 
>     setattr(modu, "__setattr__", myfn)
> 
>     delattr(modu, "__setattr__")
> 
>                 John Nagle

I doubt this is what you wanted, but...

import itertools
module = type(itertools)

class FakeModule(module):
    def __init__(self, module):
        super(FakeModule, self).__init__(module.__name__, module.__doc__)
        self.__module = module
    def __getattr__(self, attr):
        return getattr(self.__module, attr)
    def __setattr__(self, attr, val):
        print self, attr, val
        super(FakeModule, self).__setattr__(attr, val)