On 2014年02月18日 13:48, Serhiy Storchaka wrote:
18.02.14 10:10, Paul Moore написав(ла):Or alternatively, a "default on None" function - Oracle SQL calls this nvl, so I will too:def nvl(x, dflt): return dflt if x is None else x results = sorted(invoices, key=lambda x: nvl(x.duedate, datetime(MINYEAR,1,1))Or, as was proposed above: results = sorted(invoices, key=lambda x: (x.duedate is not None, x.duedate))
That makes me wonder. Why is: None < None unorderable and not False but: (None, ) < (None, ) orderable? _______________________________________________ Python-Dev mailing list [email protected] https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com