[Python-Dev] cpython (3.3): don't run frame if it has no stack (closes #17669)

[Benjamin Peterson]

2013/4/11 Maciej Fijalkowski <fijall at gmail.com>:
> On Thu, Apr 11, 2013 at 12:28 PM, Nick Coghlan <ncoghlan at gmail.com> wrote:
>>
>> On 11 Apr 2013 07:49, "Antoine Pitrou" <solipsis at pitrou.net> wrote:
>>>
>>> On Wed, 10 Apr 2013 23:01:46 +0200 (CEST)
>>> benjamin.peterson <python-checkins at python.org> wrote:
>>> > http://hg.python.org/cpython/rev/35cb75b9d653
>>> > changeset:   83238:35cb75b9d653
>>> > branch:      3.3
>>> > parent:      83235:172f825d7fc9
>>> > user:        Benjamin Peterson <benjamin at python.org>
>>> > date:        Wed Apr 10 17:00:56 2013 -0400
>>> > summary:
>>> >   don't run frame if it has no stack (closes #17669)
>>>
>>> Wouldn't it be better with a test?
>>
>> Benjamin said much the same thing on the issue, but persuading the
>> interpreter to create a frame without a stack that then gets exposed to this
>> code path isn't straightforward :P
>>
>> Cheers,
>> Nick.
>
> Maybe it's worth understanding in which circumstances this holds?
> Please write a test, we'll run into similar issue at some point Im'm
> sure.

Probably not. It's related to cyclic GC.



--
Regards,
Benjamin