Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #21801

How to get a reference of the 'owner' class to which a method belongs in Python 3.X?

Show all headers | View raw

I'm porting my existing work to Python 3.X, but...

class Foo:
    def bar(self):
        pass

mthd = Foo.bar

assert mthd.im_class is Foo # this does not work in py3k

So, how can I get a reference to Foo? This is important when writing
decorators, the only way I can think out is:

class Foo:
    def bar(self):
        'Foo' # manually declare the owner class
        pass

mthd = Foo.bar

assert mthd.__globals__[mthd.__doc__] is Foo # this works

class Child(Foo):
    def bar(self):
        'Child' # I have to override all method defined by bar but do nothing
        pass

child_mthd = Child.bar

assert child_mthd.__globals__[child_mthd.__doc__] is Child # this works

But the code above is quite ugly and abuses the __doc__. Is there any
equivalent in py3k of im_class?

Thanks,
Cosmia

Back to comp.lang.python | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

How to get a reference of the 'owner' class to which a method belongs in Python 3.X? Cosmia Luna <cosmius@gmail.com> - 2012-03-16 22:30 -0700
  Re: How to get a reference of the 'owner' class to which a method belongs in Python 3.X? Chris Rebert <clp2@rebertia.com> - 2012-03-16 22:51 -0700
  Re: How to get a reference of the 'owner' class to which a method belongs in Python 3.X? Richard Thomas <chardster@gmail.com> - 2012-03-17 00:34 -0700
    Re: How to get a reference of the 'owner' class to which a method belongs in Python 3.X? Cosmia Luna <cosmius@gmail.com> - 2012-03-17 01:11 -0700
  Re: How to get a reference of the 'owner' class to which a method belongs in Python 3.X? Peter Otten <__peter__@web.de> - 2012-03-17 10:25 +0100
    Re: How to get a reference of the 'owner' class to which a method belongs in Python 3.X? Cosmia Luna <cosmius@gmail.com> - 2012-03-17 03:04 -0700
      Re: How to get a reference of the 'owner' class to which a method belongs in Python 3.X? Cosmia Luna <cosmius@gmail.com> - 2012-03-17 05:21 -0700
        Re: How to get a reference of the 'owner' class to which a method belongs in Python 3.X? Cosmia Luna <cosmius@gmail.com> - 2012-03-18 02:42 -0700
        Re: How to get a reference of the 'owner' class to which a method belongs in Python 3.X? Cosmia Luna <cosmius@gmail.com> - 2012-03-18 02:42 -0700
          Re: How to get a reference of the 'owner' class to which a method belongs in Python 3.X? Ian Kelly <ian.g.kelly@gmail.com> - 2012-03-18 10:14 -0600
      Re: How to get a reference of the 'owner' class to which a method belongs in Python 3.X? Cosmia Luna <cosmius@gmail.com> - 2012-03-17 05:21 -0700
    Re: How to get a reference of the 'owner' class to which a method belongs in Python 3.X? Cosmia Luna <cosmius@gmail.com> - 2012-03-17 03:04 -0700
  Re: How to get a reference of the 'owner' class to which a method belongs in Python 3.X? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-03-17 10:01 +0000

csiph-web