Wed, 03 Feb 2010 16:19:12 +0100 discriminate against None, not False-ish values stable
Aurelien Campeas <aurelien.campeas@logilab.fr> [Wed, 03 Feb 2010 16:19:12 +0100] rev 4435
discriminate against None, not False-ish values
(0) -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 tip