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There are some callables which are missing __qualname__:
 method_descriptor
 wrapper_descriptor
 builtin_function_or_method
For the descriptors, at least, obj.__qualname__ should be equivalent to
 obj.__objclass__.__qualname__ + '.' + obj.__name__
Were these overlooked?
 PS C:\Repos\cpython> .\PCbuild\python_d
 Python 3.3.0a0 (default, Nov 25 2011, 22:14:28) [MSC v.1500 32 bit (Intel)] on win32
 Type "help", "copyright", "credits" or "license" for more information.
 >>> import pickle
 [66213 refs]
 >>> attribs = ('__class__', '__name__', '__qualname__')
 [66220 refs]
 >>> for o in (pickle.Pickler, pickle.Pickler.dump, object.__init__, min):
 ... print([getattr(o, a, None) for a in attribs])
 ...
 [<class 'type'>, 'Pickler', 'Pickler']
 [<class 'method_descriptor'>, 'dump', None]
 [<class 'wrapper_descriptor'>, '__init__', None]
 [<class 'builtin_function_or_method'>, 'min', None]
 [66265 refs]
Also I notice that bound methods have a misleading __qualname__:
 >>> class A:
 ... def f(self): pass
 ...
 [66348 refs]
 >>> A().f.__qualname__
 'A.f'
Maybe this should be 'A().f' instead.