[Python-Dev] asyncore fixes in Python 2.6 broke Zope's version of medusa

[Jean-Paul Calderone]

On Wed, 4 Mar 2009 10:46:28 -0800, Guido van Rossum <guido at python.org> wrote:
>On Wed, Mar 4, 2009 at 10:27 AM, Jean-Paul Calderone <exarkun at divmod.com> wrote:
> [snip]
>>
>> So, as a disinterested party in this specific case, I'd say revert to
>> the pre-2.6 behavior.  It does less harm than leaving the current
>> behavior.
>
>Sorry, but I really do think that we should maintain backward
>compatibility *within* the 2.6 series as well. If that makes it
>impossible to also maintain the 2.5 behavior, perhaps some flag could
>be added to restore 2.5 compatibility, e.g.
>
>import asyncore
>asyncore.python_25_compat = True
>
>Note that this "API" is designed to work in 2.5 as well. :-)
>

But why?  The argument I made had the objective of minimizing developer
effort.  What's the objective of maintaining backward compatibility within
the 2.6 series in this case (sorry if it appeared earlier in this thread
and I missed it)?

Jean-Paul