How to wrap a class's methods?

[Michael Spencer]

Grant Edwards wrote:
> On 2005-02-17, Steven Bethard <steven.bethard at gmail.com> wrote:
> 
> 
>>py> class C(object):
>>...     def f(self, *args):
>>...         print "f:", args
>>...     def g(self, *args):
>>...         print "g:", args
>>...
>>py> class D(C):
>>...     pass
>>...
>>py> class Wrapper(object):
>>...     def __init__(self, func):
>>...         self.func = func
>>...     def __call__(self, *args):
>>...         print "wrapped"
>>...         return self.func(*args)
>>...
>>py> for name in ['f', 'g']:
>>...     wrapper = Wrapper(getattr(C, name))
>>...     setattr(D, name, new.instancemethod(wrapper, None, D))
> 
> 
> Thanks.  The stuff provided by the "new" module is what I was
> missing.
> 
No magic in the 'new' module - new.instancemethod is just a synonym for the 
method type:

  >>> import new, types
  >>> new.instancemethod is types.MethodType
True

Michael