[Python-Dev] Add __exports__ to modules

[Moshe Zadka]

On Wed, 10 Jan 2001 18:12:20 +0100, "M.-A. Lemburg" <mal@lemburg.com> wrote:

> > So here's a plan: somebody please submit a patch that does only one
> > thing: from...import * looks for __all__ and if it exists, imports
> > exactly those names.  No changes to dir(), or anything.
> 
> +1 -- this won't be me though (at least not this week).

I'm working on it -- I'll have a patch ready as soon as my slow
modem will manage to finish the "cvs diff".  Guido, I'll
assign it to you, OK?

> Cool.  This could make Python instances usable as "modules"
> -- with full getattr() hook support !

My Patch already does that -- if the instance supports __all__

> For IMPORT_STAR I'd suggest first looking for __all__ and
> then reverting to __dict__.items() in case this fails. 

That's what my patch is doing.

> BTW, is __dict__ needed by the import mechanism or would
> the getattr/setattr slots suffice ? And if yes, must it
> be a real Python dictionary ?

My patch works with getattr (no setattr) as longs as there
is an __all__ attribute. 

-- 
Moshe Zadka <sig@zadka.site.co.il>
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