[Python-Dev] python compiler

[Maciej Fijalkowski]

On Mon, Apr 5, 2010 at 3:03 PM, "Martin v. Löwis" <martin at v.loewis.de> wrote:
>> Is the requirement just the construction of full tracebacks in the
>> event of an exception? Because Cython does that right now. In the
>> event of an exception, the Python call frames are constructed as the C
>> call stack is unwound. I thought Maciej was suggesting that having
>> full Python frames for any Python call was part of the semantics,
>> which is what we only do in the case of a profiling run. I'm really
>> not trying to belabor the point -- but if there's something Cython
>> should be doing and isn't, it's always good to hear about it. (Feel
>> free to point me to an appropriate section of the docs ...)
>
> I guess being able to do inspect.currentframe() is a "SHOULD"
> requirement for Python implementations. It's clear that it will be
> difficult to provide, so portable applications SHOULD NOT rely on it
> working correctly.
>
> Regards,
> Martin
>

According to docs sys._getframe() is a impl-specific thing, however
sys.exc_info() presenting correct interface of it's 3rd result (a
traceback) is not. That's at least how I read those docs.

Cheers,
fijal