On Tue, Mar 05, 2019 at 06:04:40PM +0900, INADA Naoki wrote: [...] > One obvious merit of d.merge(...) is it returns same type of d. > `type(d1)(d1, d2)` looks ugly. > > But people just want dict instead of some subtype of dict. > This merit is not so important.
Not to me! It *is* important to me. I want builtins to honour their subclasses. It is probably too late to change existing behaviour, but my proposal specifies that subclasses are honoured. -- Steven _______________________________________________ Python-ideas mailing list [email protected] https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
