On Mon, Jul 14, 2014 at 2:23 AM, Steven D'Aprano <st...@pearwood.info> wrote: >> We will see >> later that that happens. Further, when comparing float NaNs of the same >> identity, the list implementation forgot to special-case NaNs. Which >> would be a bug, IMHO. > > "Forgot"? I don't think the behaviour of list comparisons is an > accident.
Well, "forgot" is on the basis that the identity check is intended to be a mere optimization. If that were the case ("don't actually call __eq__ when you reckon it'll return True"), then yes, failing to special-case NaN would be a bug. But since it's intended behaviour, as explained further down, it's not a bug and not the result of forgetfulness. ChrisA _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com