New submission from sergem: I have Python 3.5.2.
datetime is implemented as a subclass of date (isinstance(datetime.datetime(2015,1,1), datetime.date) == True) I suppose that violates Liskov substitution principle: 1. datetime and date cannot be compared via "<". 2. both of these classes have "isoformat()" method. And the meaning of these methods differ. It means one cannot pass datetime to the function that expects date. Also one cannot say that datetime "is a" date. I suppose datetime must not be a subclass of date. ---------- messages: 282416 nosy: sergem priority: normal severity: normal status: open title: datetime should not be a subclass of date versions: Python 3.5 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue28878> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
