On Thu, Apr 28 2011, Senthil Kumaran wrote: > On Wed, Apr 27, 2011 at 10:05:33AM -0500, kaushik kalyanaraman wrote: >> On Wed, Apr 27, 2011 at 5:28 AM, Senthil Kumaran <sent...@uthcode.com> wrote: >> >> > The second line is bit confusing, because the way to check for nan is >> > usually via math.isnan. The report says that identity comparison is >> > not done in containers that may be the bug. >> I believe that the second-line behavior is the bug since the first one >> is correct from a math point of view. > > Actually no, the original python-dev discussion is more enlightening. > This got rejected as not a bug, because of it is theoretical only > value.
Yes. It's very enlightening. Especially Raymond's posts. > Yeah, you can play around and find subtleties nan,inf and -0, but > there are set of methods which are defined for proper operation of > those. While true, I don't like surprises. I don't expect to come across corner cases like these in my day to day life but when I do, I don't want to have to look up the manual for some subtlety that explains this counter intuitive behaviour. -- _______________________________________________ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
