[Python-3000] [Python-Dev] What should the focus for 2.6 be?

Thomas Wouters thomas at python.org
Thu Aug 24 16:55:51 CEST 2006

On 8/24/06, Guido van Rossum <guido at python.org> wrote:

> I know that you are dreaming of a world where all transitions are
> easy. But it's just a dream. 3.0 will require hard work and for many
> large apps it will take years to migrate -- the best approach is
> probably to make it coincide with a planned major rewrite of the app.

I agree with everything you said, except this. Yes, Python 2.x -> 3.x will
always be a large step, no matter which 'x' you take. That shouldn't (and
doesn't, so far) mean you can't write code that works fine in both 2.x and
3.x, and transitioning applications from 2.x-only code to
2.x-and-3.x-codecould then be done incrementally. It would probably
need support from future
2.x releases in order to make that possible, but it shouldn't affect 3.x. It
will still be a rather big effort from applications, but not any bigger than
porting to 3.x in the first place.

Thomas Wouters <thomas at python.org>

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