[Pyobjc-dev] aspect/advice -- wrapping methods

[ytrewq1 <yt...@gm...>]

I am able to 'wrap' existing Cocoa methods in classes using
objc.classAddMethods 'manually' or via categories.  For example,
assuming something like:

import sys
inst =3D SomeCocoaClass.alloc().init()
temp =3D inst.someMethod_

class SomeCocoaClass (objc.Category(SomeCocoaClass)):
    def someMethod_(self, something):
        sys.stderr.write('here: %s' % something)
        return temp(self, something)

now when someMethod_ is called, Console.app provides some
appropriate output.

I'd like to automate this wrapping process in the form of a function
which I can pass the name of a class and the name of a method to and
have the function do the wrapping for me.

I've tried a number of approaches, but upon executing the 'wrapped'
method, I either get an error about not being able to look up a name
(trying to find the original method) or I get an infinite loop (the wrappin=
g
method keeps calling itself).

Does this sound like something that should be doable?  If so, any hints
or pointers?