On 5 Dec 2013 09:04, "Brian Curtin" <brian@python.org> wrote:
>
> On Wed, Dec 4, 2013 at 2:47 PM, M.-A. Lemburg <mal@egenix.com> wrote:
>>
>> On 04.12.2013 21:28, Eli Bendersky wrote:
>> > On Wed, Dec 4, 2013 at 11:47 AM, M.-A. Lemburg <mal@egenix.com> wrote:
>> >
>> >> On 04.12.2013 20:07, Benjamin Peterson wrote:
>> >>> 2013/12/4 Barry Warsaw <barry@python.org>:
>> >>>> On Dec 04, 2013, at 07:15 PM, Antoine Pitrou wrote:
>> >>>>
>> >>>>> As for the question, I think we should wait at least two or three years
>> >>>>> before "sunsetting" 2.7.
>> >>>>
>> >>>> I've been thinking we should move Python 2.7 to security-fix only
>> >> around the
>> >>>> Python 3.5 time frame, with a couple more years of promised security
>> >> support.
>> >>>
>> >>> FWIW, the current plan is to have the last normal release in 2015 and
>> >>> security releases "indefinitely" (2020 or something like that).
>> >>
>> >> Just as data point: we have customers that still request Python 2.4
>> >> compatible versions of our products - simply because they cannot
>> >> upgrade. The last release of that series was in 2008.
>> >>
>> >
>> > I was always curious about these "cannot upgrade" cases. Most of the time,
>> > they seem to boil down to "because that's the default Python our RHEL comes
>> > with", completely ignoring the possiblity of just building a newer Python
>> > locally and/or carrying along with the product.
>> >
>> > Can you clarify on some specific interesting cases you ran into?
>>
>> One example is users stuck on e.g. Zope 2.10 or Plone 3.3 (or even
>> earlier). They cannot upgrade because they are using customized
>> installations and don't have the knowledge or resources to upgrade
>> the systems to later versions.
>
>
> Writing intentionally unmaintainable software and being locked into it is a different issue than platforms providing long-dead Python versions. If you do bad things, you're going to have a bad time.

A lot of these cases are companies that didn't know any better at the time, though.

Cheers,
Nick.

>
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