Type of an object:
greg.ewing at canterbury.ac.nz
Tue Dec 17 23:15:03 CET 2013
Steven D'Aprano wrote:
> Well, that is a surprise, but I don't think that is intended behaviour. I
> think that's something which only works by accident. The intention is
> that __class__ returns the instance's type, not arbitrary values.
Well, a proxy object would obviously return a suitable
class-like object. I was just demonstrating that it's
possible to override what __class__ returns.
I don't think it's an accident, because the weakref
module uses this for its proxy objects.
>>> import weakref
>>> class C(object):
>>> c = C()
>>> p = weakref.proxy(c)
> If you
> try to set it to a non-class on the instance, it fails:
For proxying purposes you don't need to be able to set
it, but I don't see why you couldn't use a property
setter to override that behaviour as well if you really
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