[Python-Dev] Bug in from __future__ processing?

[Guido van Rossum]

On 3/4/06, Anthony Baxter <anthony at interlink.com.au> wrote:
> On Saturday 04 March 2006 15:34, Tim Peters wrote:
> > Indeed!  But whose arm could we twist to get them to repair the
> > compiler in 2.4?  I'd settle for a blurb in the next 2.4 NEWS just
> > noting that 2.5 will follow the documented syntax.  That may even
> > be desirable, to avoid breaking working (albeit by accident) code
> > across a micro release.
>
> I don't think a change like this should go into a 2.4.x release. It
> stands a very very high chance of breaking someone's code. I _could_
> be convinced about a warning being emitted about it, though I'm not
> going to have the time to figure out the new compiler to do the work.

In fact I know for sure it will break code -- I believe I first ran
into this with Django.

Let's leave 2.4 alone (even adding a warning to 2.4.3 seems pointless)
except for documenting this (not just in Misc/NEWS which is
overwhelming but in the 2.4 docs for _future-_). In 2.5 it's already
fixed; perhaps the 2.5 docs could mention that this was accidentally
broken in 2.4.

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