[Python-Dev] Set methods for mapping views

Nick Coghlan ncoghlan at gmail.com
Wed Oct 28 08:00:44 CET 2009

Steven D'Aprano wrote:
> On Tue, 27 Oct 2009 10:09:14 am Guido van Rossum wrote:
>> On Mon, Oct 26, 2009 at 4:06 PM, Antoine Pitrou <solipsis at pitrou.net> 
> wrote:
>>> Steven D'Aprano <steve <at> pearwood.info> writes:
>>>> I don't understand that rationale. Let's take a concrete example.
>>>> The new `yield from` syntax was accepted
>>> Was it?
>> No.
> I thought it had been. My mistake. Serves me right for not checking the 
> PEP first. But my point still stands.

Rather than going through and saying "oh, change X touches on area Y,
where we're waiting to see how change Z plays out, so we shouldn't do X
yet" it is simpler to declare the core of the language off limits for a
release or two.

We made a lot of big changes to fairly core parts of the language in a
relatively short period. Giving those a chance to settle down before we
start fiddling further is unlikely to be detrimental in the long run.


Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia

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