[Cython] pyregr testsuite regression

Vitja Makarov vitja.makarov at gmail.com
Tue Aug 23 07:20:43 CEST 2011

2011/8/23 Robert Bradshaw <robertwb at math.washington.edu>:
> On Mon, Aug 22, 2011 at 9:41 PM, Stefan Behnel <stefan_ml at behnel.de> wrote:
>> Vitja Makarov, 23.08.2011 06:26:
>>> Hudson shows regression for last 4 pyregr builds.
>> Yes, I enabled the "always_allow_keywords" option for better Python
>> compatibility, which disables the signature optimisation into METH_O &
>> friends for def functions. That helped in a couple of cases but broke
>> others. The regression appears to be mostly because generator expressions do
>> not work with this option:
>> http://trac.cython.org/cython_trac/ticket/720
>> CyFunction may or may not drop the need for that option eventually, but for
>> now, it would be good to fix it.
>> I also wouldn't object to switching it off again, in case it's not an easy
>> fix (I tried but didn't find the right place to fix it).
> IIRC, it is a significant performance penalty to turn that off (which
> is why it's disabled by default). We should at least allow one to
> disable it.

That's switched on only for pyregr tests


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