Author vstinner
Recipients BreamoreBoy, aconrad, belopolsky, larry, mark.dickinson, python-dev, r.david.murray, serhiy.storchaka, tbarbugli, tim.peters, trcarden, vivanov, vstinner
Date 2015-09-18.13:01:57
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <>
Ok, I fixed Python 3.4 and 3.5 too: fromtimestamp() and utcfromtimestamp() now uses also ROUND_HALF_EVEN rounding mode, as timedelta constructor. I explained in Misc/NEWS that the change was made to respect the property:

(datetime(1970,1,1) + timedelta(seconds=t)) == datetime.utcfromtimestamp(t)

Thanks Alexander Belopolsky & Tim Peters for your explanation on rounding. It's not a simple problem :-)

Thanks Tommaso Barbugli for the bug report: it's now fixed on all (maintained) Python 3 versions: 3.4, 3.5 and 3.6. The fix will be part of Python 3.5.1.
Date User Action Args
2015-09-18 13:01:57vstinnersetrecipients: + vstinner, tim.peters, mark.dickinson, belopolsky, larry, r.david.murray, aconrad, BreamoreBoy, vivanov, python-dev, serhiy.storchaka, tbarbugli, trcarden
2015-09-18 13:01:57vstinnersetmessageid: <>
2015-09-18 13:01:57vstinnerlinkissue23517 messages
2015-09-18 13:01:57vstinnercreate