Can't find it. I mean something like: >> m1 = Money(decimal=2) >> m2 = Money(decimal=2) >> m1.value = 3.20 >> m2.value = 2.15 >> print m1 + m2 5.35 5.35! Not 5.3500000000000001 neither 5.34999999999999999999. I think this is not a rare thing, but I can't find it in the standar library neither the package index. Thanks! . Facundo