Re: [Python-ideas] Disallow orderring comparison to NaN

I posted a patch implementing this proposal on the tracker: http://bugs.python.org/issue11949 Interestingly, the only substantive change that was needed to pass the test suit revealed a bug in the test logic. The tests in cmath_testcases.txt include testing for -0.0 results, but the processing in test_math.py ignores the difference between 0.0 and -0.0. For example, test_math will still pass if you make the following change: --- a/Lib/test/cmath_testcases.txt +++ b/Lib/test/cmath_testcases.txt @@ -405,7 +405,7 @@ -- zeros asin0000 asin 0.0 0.0 -> 0.0 0.0 asin0001 asin 0.0 -0.0 -> 0.0 -0.0 -asin0002 asin -0.0 0.0 -> -0.0 0.0 +asin0002 asin -0.0 0.0 -> 0.0 0.0 asin0003 asin -0.0 -0.0 -> -0.0 -0.0