[Python-3000] __bool__ in 2.6?

James Thiele python3now at gmail.com
Mon Oct 29 19:40:19 CET 2007


So just to clarify:
2.5 __nonzero__ only
2.6 __nonzero__ first, then __bool__ (if patch submitted)
3.x __bool__ first, then __nonzero__

Is this correct?

On 10/29/07, Guido van Rossum <guido at python.org> wrote:
> 2007/10/28, Brett Cannon <brett at python.org>:
> > On 10/28/07, James Thiele <python3now at gmail.com> wrote:
> > > PEP 361 lists __bool__ support as being possible for 2.6 backporting.
> > > As of today the trunk build uses __nonzero__ like 2.5 but 3.0 alpha
> > > uses __bool__. Has a decision been made on whether this will make the
> > > cut for 2.6?
> > >
> > > In a more general vein, is there a cutoff date for producing a list of
> > > 3.0 features which will be backported to 2.6?
> >
> > Backporting decisions have not been made as the feature set of 3.0 is
> > still a moving target.  Once we nail down the features (I am going to
> > guess not until b1 at the earliest) then backporting will probably
> > start.
>
> In this case, like many, the backport can't be an exact copy of the
> 3.0 code: 2.6 *must* support __nonzero__. But it should also support
> __bool__ as a fallback. I think it would be great if someone submited
> a patch to implement this (though it isn't necessarily the highest
> backporting priority).
>
> --
> --Guido van Rossum (home page: http://www.python.org/~guido/)
>


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