[Python-Dev] New syntax for 'dynamic' attribute access

Guido van Rossum guido at python.org
Wed Feb 14 02:15:07 CET 2007


On 2/13/07, Greg Ewing <greg.ewing at canterbury.ac.nz> wrote:
> Martin v. Löwis wrote:
>
> > OTOH, you can't write
> >
> >    x + = 2
> >
> > or
> >
> >    a = 2 * * 4
>
> Although oddly enough you *can* write
>
>     a[. . .]
>
> I guess whoever added the ellipsis couldn't be bothered
> defining a new token for it.

But if we ever turn it into a single token (which we just may for
Py3k) don't complain if your code breaks.

> It's something of an arbitrary choice, but to me it just
> seems that the dot and bracket *should* be separare
> tokens, perhaps because I would be thinking of the
> [x] as a special kind of argument to the dot operator,
> rather than there being a funny new operator called ".[".

Yes, that's how I was thinking of it. But it's all moot now.

-- 
--Guido van Rossum (home page: http://www.python.org/~guido/)


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