[Python-3000] ABC PEP isinstance issue Was: PEP 31XX: A Type Hierarchy for Numbers (and other algebraic entities)
Guido van Rossum
guido at python.org
Sat Apr 28 18:17:38 CEST 2007
On 4/28/07, Jean-Paul Calderone <exarkun at divmod.com> wrote:
> Aside from the way in which `x' can already lie:
> >>> class X(object):
> ... __class__ = property(lambda self: int)
> >>> isinstance(X(), int)
> Is this behavior changed/going to be changed in Py3k?
I'm not particularly enamored with it, but I believe it once served a
purpose for Zope. Does anyone know if it is still needed?
--Guido van Rossum (home page: http://www.python.org/~guido/)
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