[Twisted-web] Twisted is removing Python 2.6 support

[exarkun at twistedmatrix.com]

On 09:42 am, hawkowl at atleastfornow.net wrote:
>
>>On 8 Jun 2015, at 17:27, exarkun at twistedmatrix.com wrote:
>>
>>On 05:57 am, hawkowl at atleastfornow.net wrote:
>>>Hi everyone,
>>>
>>>As mentioned in http://twistedmatrix.com/pipermail/twisted- 
>>>python/2015-March/029258.html , Twisted is removing Python 2.6 
>>>support. As such, I would like to announce that 15.3 will be the last 
>>>release with 2.6 support. After this release, the Python 2.6 
>>>buildbots will be removed from the 'supported' list and most likely 
>>>retired.
>>>
>>>This will remove all buildbot coverage of OS X and RHEL/CentOS. As 
>>>I've been taking point on the buildbots recently, I'm going to be 
>>>deploying a new CentOS 7 buildslave which will provide coverage of 
>>>that platform. That just leaves OS X uncovered -- so if you would 
>>>like to donate buildslaves for this, please send me an email.
>>
>>I think this is backwards.  There was basically no strong argument 
>>made against dropping Python 2.6 support but there was no case made 
>>for dropping OS X support.  I don't think you can remove the only OS X 
>>builder from the supported list.  That's equivalent to saying OS X 
>>support is being dropped.
>>
>>So either the existing OS X slaves need to be upgraded first (I don't 
>>see why you wouldn't just do this) or Python 2.6 support (at least on 
>>OS X) needs to be retained until someone else volunteers a Python 2.7 
>>OS X slave.
>>
>>Jean-Paul
>>
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>
>Hi JP,
>
>I know that this would leave OS X uncovered -- lukasa, habnabit, and 
>Adi have at separate points offered OS X builders of varying OS levels 
>and even Python versions, both on the mailing list and in #twisted-dev 
>(where Lukasa answered the call from this email and offered a Yosemite 
>builder today), which is why I am confident that this will not end up 
>being an issue when 15.3's first prerelease is issued.

I'd be even more confident if you don't disable the Python 2.6 OS X 
builder until a new Python 2.7 OS X builder is set up.  If this turns 
out to be easy, then nothing has been lost.  If it ends up being hard, 
then it's much better than having a screwed up 15.3.
>I think the prevailing reason that we don't have an OS X 2.7 bot is 
>that last time OS X hardware was offered, the buildbot was not being 
>actively maintained. I've taken up the mantle in some capacity and 
>getting Twisted supported on more platforms is my primary goal. And as 
>an OS X user, I have some vested interest in it continuing being 
>supported.

Once again, I'm not really clear on why the existing build slaves aren't 
just being upgraded.  Why is new hardware required?

Jean-Paul