[Python-Dev] with_traceback

Thu Mar 1 00:45:17 CET 2007

glyph at divmod.com wrote:
> Or modify __new__ on your particular heavily-optimized
> exception to have a free-list,

Doing that in Python is likely to have as much overhead as
creating an instance.
The simple and obvious optimisation is to pre-create the
instance, but we're proposing to make the obvious way
wrong for subtle reasons. That doesn't seem pythonic
to me.
--
Greg