[Python-Dev] Traceback problem

[Christian Tismer]

Guido van Rossum wrote:
> Sure, as long as it is part of Stackless and not of Python proper.
> 
> Actually, I've wanted a reset_exc() call from time to time.  What is the
> barrer to having in the core?
> 
> I believe that Stackless supports Python 2.1 or older, and we're not
> adding features.  Even if Stackless supported Python 2.2, adding a new
> feature would be iffy.
> 
> This has nothing to do with Stackless,
> 
> 
> Well, Christian explained that it was a problem because they have
> 1000s of threads.

Yeah. But standard CPython can exploit the same thing, with a
handful of real threads, which happen to catch exceptions
from, say, a very deep, very memory consming chain of frames.
These are all kept alive, and from the documentation,
people don't expect this!

...

> I don't have time to write the code, but I'll entertain a patch before
> 2.3b1.

I was about to supply a patch, that's why I asked for
the right syntax. Do you want an extra function of which name,
or do you like a default arg to exc_info?
Both patches should not take me more than 1/2 hour, or I
should better give up on programming and become a farmer.

no-offense-to-farmers,-they-are-probably-the-happier-people -- chris

-- 
Christian Tismer             :^)   <mailto:tismer@tismer.com>
Mission Impossible 5oftware  :     Have a break! Take a ride on Python's
Johannes-Niemeyer-Weg 9a     :    *Starship* http://starship.python.net/
14109 Berlin                 :     PGP key -> http://wwwkeys.pgp.net/
work +49 30 89 09 53 34  home +49 30 802 86 56  pager +49 173 24 18 776
PGP 0x57F3BF04       9064 F4E1 D754 C2FF 1619  305B C09C 5A3B 57F3 BF04
      whom do you want to sponsor today?   http://www.stackless.com/