Serhiy Storchaka wrote: > On 30.05.15 10:56, Peter Otten wrote: >> The following modification of the collections.Counter implementation >> >> https://hg.python.org/cpython/rev/fe4efc0032b5 >> >> was just checked in with the line >> >> result[elem] = 0 - count >> >> Does this have an advantage over the obvious >> >> result[elem] = -count >> >> ? > >>>> x = 0.0 >>>> -x > -0.0 > > >>>> 0 - x > 0.0
That's a subtle difference, but does it matter in the context of the patch? The complete code is + result = Counter() + for elem, count in self.items(): + if count < 0: + result[elem] = 0 - count + return result and >>> -0.0 < 0 False so both +0.0 and -0.0 would be skipped anyway. -- https://mail.python.org/mailman/listinfo/python-list
