Callable modules?

[Alex Martelli]

Martin v. Loewis wrote:

> Paul Rubin <phr-n2002b at NOSPAMnightsong.com> writes:
> 
>> Is there a way to do that?
> 
> You can put a callable object in sys.modules. Module objects
> themselves are not callable.

Right.  E.g., the module could be:

import sys

class Callamod(object):
    def __call__(self): print "see, I'm callable!"
    def __getattr__(self, name):
        if name[:1].lower()=='x': return hex(name[1:])
        raise AttributeError, name

sys.modules[__name__] = Callamod()


This shows off the possibility of having dynamic get-attr
functionality, as well as callability, in what every other
piece of code accesses as "a module".

Only limitation I know of -- no reload() on this kind of
"module"... reload(x) needs x to be a module object.  Not
sure if you could inherit Callamod from the module type
to work around this.


Alex