Message 91020 - Python tracker

An example of a case that's almost 3.5 ulps out (Python 2.6):

Python 2.6.2 (r262:71600, Jul  8 2009, 09:56:31) 
[GCC 4.0.1 (Apple Inc. build 5490)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from __future__ import division
>>> m = 295147931372582273023
>>> n = 295147932265116303360
>>> m/n
0.99999999697597697

The correctly rounded result would be the float given by 
0.9999999969759773.