[Python-Dev] Proposed 3.0 compatiblity module (original) (raw)

Phillip J. Eby pje at telecommunity.com
Wed Jan 17 00:45:22 CET 2007

At 03:18 PM 1/16/2007 -0800, Guido van Rossum wrote:

On 1/16/07, Phillip J. Eby <pje at telecommunity.com> wrote: > The idea here being that, once 2.6 is widely-enough deployed that it can be > assumed as a base for one's users, you can simply run the translator once, > do any cleanup, and then have 3.0-clean code that also still runs for your > installed base. > > That way, there's no chasm to leap; just a code cleanup.

I understand; I would rather have that too, everything else being the same. But everything else wouldn't be the same -- it would place many more restrictions on 3.0, and the common subset would still be much smaller. For me personally, the weight of the added restrictions to 3.0 is the killer.

I don't understand; how would adding features to 2.6 restrict what you could add to 3.0?

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