Dear Python Developers, It is s my first post to python-dev, so let me introduce myself briefly: Jan Kaliszewski, programmer and composer, sometimes also NGO activist.
Coming to the matter... The discussion started with remark by Mark Dickinson about such a syntax oddity: > def f(a, b,): ... is fine, but > def f(*, a, b,): ... is a SyntaxError Then some other similar oddities were pointed at (*args/**kwargs-related ones as well as calls like f(*, a=3,) causing SyntaxError too). References: * http://mail.python.org/pipermail/python-dev/2010-July/101636.html * http://bugs.python.org/issue9232 * http://bugs.python.org/issue10682 But yesterday both mentioned issues has been closed as rejected -- with suggestion that it would probably require a PEP to modify Python in this aspect (as there is no clear consensus). So I'd opt for re-opening the discussion -- I suppose that more people could be interested in solving the issue (at least after the end of PEP 3003 moratorium period). I think that seeing that: def f(a, b): ... def f(a, b,): ... def f(a, *, b): ... def f(a, *args, b): ... x(1, 2, 3, 4, z=5) x(1, 2, 3, 4, z=5,) x(1, *(2,3,4), z=5) ...are ok, then -- def f(a, *, b,): ... def f(a, *args, b,): ... x(1, *(2,3,4), z=5,): ... ...should be ok as well, and consequently -- def f(a, *args,): ... def f(a, **kwargs,): ... x(1, *(2,3,4),) x(1, **dict(z=6),) ...should also be ok. Please also note that Py3k's function annotations make one-def-argument- -per-line formattig style the most suitable in some cases, e.g.: def my_func( spam:"Very tasty and nutritious piece of food", ham:"For experts only", *more_spam:"Not less tasty and not less nutritious!", spammish_inquisition:"Nobody expects this!", ) -> "Spam, spam, spam, spam, spam, spam, spam, spam, spam, spam": ... Regards, Jan Kaliszewski _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
