Yes, I realize now that I was on the wrong box running the wrong version, so ignore me if I'm stupid and its irrelevant!
On Jan 4, 2008 9:02 AM, Calvin Spealman <[EMAIL PROTECTED]> wrote: > On Jan 4, 2008 8:07 AM, Christian Heimes <[EMAIL PROTECTED]> wrote: > > Hello! > > > > Bug http://bugs.python.org/issue1481296 describes a problem where > > long(float('nan')) causes a seg fault on Mac OS X. On other platforms it > > returns 0L, e.g. > > > > Python 2.5.1 (r251:54863, Oct 5 2007, 13:36:32) > > [GCC 4.1.3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2)] on linux2 > > Type "help", "copyright", "credits" or "license" for more information. > > >>> float('nan') > > nan > > >>> long(float('nan')) > > 0L > > I get even more fun results! > > Python 2.4.4 (#1, Oct 18 2006, 10:34:39) > [GCC 4.0.1 (Apple Computer, Inc. build 5341)] on darwin > Type "help", "copyright", "credits" or "license" for more information. > >>> l = long(float('nan')) > 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000L > >>> int(l) > 0 > >>> long(int(l)) > > 0L > > > My patch to Python 2.6 adds an explicit check for NaNs to always return > > 0L. It did feel a bit strange but it's the default on some platforms. > > Today an user pointed out that he doesn't like the patch, too. > > > > How should the problem be solved? In my humble opinion > > long(float('nan')) should return 0L in Python 2.5.2 for b/w > > compatibility and raise a ValueError or OverflowError in Python 2.6+. > > > > Christian > > > > _______________________________________________ > > Python-Dev mailing list > > Python-Dev@python.org > > http://mail.python.org/mailman/listinfo/python-dev > > Unsubscribe: > > http://mail.python.org/mailman/options/python-dev/ironfroggy%40gmail.com > > > > > > -- > Read my blog! I depend on your acceptance of my opinion! I am interesting! > http://ironfroggy-code.blogspot.com/ > -- Read my blog! I depend on your acceptance of my opinion! I am interesting! http://ironfroggy-code.blogspot.com/ _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
