[Python-3000] callable()

[Brett Cannon]

On 7/20/06, Guido van Rossum <guido at python.org> wrote:
>
> On 7/20/06, Raymond Hettinger <rhettinger at ewtllc.com> wrote:
> >
> > >> Why is this a defect?  Have we abandoned the notion of SeqIter
> > >> automatically wrapping any object with __getitem__()?
> > >
> > >
> > > Actually, the autowrapping was intended a backwards compatibility
> > > measure.
> > >
> > > We should make a conscious decision whether we should make it a
> > > permanent feature or not.
> >
> > It sure simplified writing extensions.
> > And it provided a convenient guarantee that all sequences are iterable.
> > I don't see a downside to keeping it.
>
> Well, it will also make mappings pseudo-iterable; in Py3k I plan to
> completely get rid of the distinction between x[...] for mappings and
> for sequences, which exist in C but not at the Python level.


Woohoo!

I'd like to hear from others whether the default iter fallback ought
> to stay or go.


Eh, I have never had any direct need for it.

-Brett
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