I get the following behaviour on Python 2.5 (OS X 10.4.8 on PowerPC, in case it's relevant.)
>>> x, y = 0.0, -0.0 >>> x, y (0.0, 0.0) >>> x, y = -0.0, 0.0 >>> x, y (-0.0, -0.0) I would have expected y to be -0.0 in the first case, and 0.0 in the second. Should the above be considered a bug, or is Python not expected to honour signs of zeros? I'm working in a situation involving complex arithmetic where branch cuts, and hence signed zeros, are important, and it would be handy if the above code could be relied upon to do the right thing. Mark -- http://mail.python.org/mailman/listinfo/python-list
