[ZODB-Dev] zeopack error

[Darryl Dixon - Winterhouse Consulting]

> On Thu, Feb 9, 2012 at 11:32 AM, Marius Gedminas <marius at gedmin.as> wrote:
>> On Thu, Feb 09, 2012 at 02:26:10AM +0100, Kaweh Kazemi wrote:
>>> Thanks a lot for the investigation, Marius. That was awesome.
>>>
>>> Seems to me, I need to upgrade to Python 2.7 and be done with the
>>> problem then. :/
>>
>> I wonder, though, if ZODB ought to use the 'noload' method of
>> cPickle.Unpickler, which is undocumented and broken on 2.6 (and gone on
>> 3.x, AFAIU).
>
> noload exists for ZODB.
>
> We ZC (DC at the time) wrote cPickle because ZODB needed a
> highly-optimized
> pickler.  There are a number of decisions we made specifically with
> ZODB in mind.
>
> I don't think the Python 3 version of cPickle reflects these
> priorities.  I strongly suspect
> we'll end up having our own cPickle in the long run.
>

It would be wonderful if ZODB settled on an internal version of cPickle
that didn't use recursion so we could Pickler.dump() OFS.File objects
bigger than 32mb :-)

Cheers,
Darryl Dixon
Winterhouse Consulting Ltd
http://www.winterhouseconsulting.com