On Sep 16, 2009, at 9:33 PM, Steven D'Aprano wrote:
I have two threads, one running min() and the other running max() over
the same list. I'm getting some mysterious results which I'm having
trouble debugging. Are min() and max() thread-safe, or am I doing
something fundamentally silly by having them walk over the same list
simultaneously?
See for yourself:
http://svn.python.org/view/python/trunk/Python/bltinmodule.c?view=markup
min() and max() don't release the GIL, so yes, they are safe, and
shouldn't see a list in an inconsistent state (with regard to the
Python interpreter, but not necessarily to your application). But a
threaded approach is somewhat silly, since the GIL ensures that they
*won't* walk over the same list simultaneously (two separate lists,
for that matter).
-Miles
--
http://mail.python.org/mailman/listinfo/python-list
