On Mon, Dec 14, 2015 at 7:43 PM, Glyph Lefkowitz
<gl...@twistedmatrix.com> wrote:
>
>> On Dec 14, 2015, at 3:53 PM, pisymbol . <pisym...@gmail.com> wrote:
>>
>> On Mon, Dec 14, 2015 at 4:51 PM, Glyph Lefkowitz
>> <gl...@twistedmatrix.com> wrote:
>>> I did a pip install and it said I needed Python 2.7 or higher. Let me
>>> reevaluate if I can just update twisted.
>>>
>>>
>>> Try `pip install twisted==15.4´ if you still require Python2.6 support; `pip
>>> install twisted´ will install the latest, which no longer works on 2.6.
>>
>> Yeah, that's what I did. It's working now!
>
> Great!  Glad to hear you were able to make a huge leap in Twisted versions 
> with little trouble :-).
>
>>> But again: Python 2.6 is unsupported by the upstream Python developers.  You
>>> really should not be using it, since it won't receive security updates (of
>>> course, Red Hat and transitively CentOS claim to "support" these packages,
>>> but if upstream is refusing patches at this point, it's not clear where that
>>> support will come from).
>>
>> As you can imagine, this boils down to politics.
>
> I understand that things like this often do, which is exactly why I want to 
> make it clear that we (speaking in terms of the broader Python community now, 
> not just Twisted) are trying to push people towards more recent versions just 
> because they're more fun or more aesthetically pleasant, but because there 
> are very real risks associated with being on unsupported ancient versions of 
> things.  It pains me not to be supporting a configuration that some users 
> want, but there is a line where "conservative about change" becomes 
> "negligent about maintenance" and python 2.6 crossed it a little over two 
> years ago :-).

I'm not disagreeing with you per se...but...

The fact is the Python community at large then needs to convince the
distro maintainers accordingly. Telling a customer to update their
entire platform for a newer version of Python isn't going to fly a lot
of times (and remember, someone of them have support agreements with
RH).

And running two versions of Python can get messy real fast.

Anyway, it is what it is.

>>> If you must use CentOS 6, then I'd recommend installing PyPy 4.0 from
>>> https://github.com/squeaky-pl/portable-pypy#portable-pypy-distribution-for-linux
>>> and using that.  In addition to being security-supported, it will also make
>>> your python code run 10x faster :).
>>
>> Interesting, I'll take a look.
>
> Hope that works out for you.  Good luck!

Thanks! So far, so good. I was now able to lift my prototype code and
integrate it with the rest.

I'll probably have more questions at some point, but at least 15.4 did
the trick!

-aps

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