I suggest using a variation on the consumer interface, as described by Fredrik Lundh at http://effbot.org/zone/consumer.htm : .next() -- stays .next() .__next__(arg) -- becomes .feed(arg) .__exit__(StopIteration, ...) -- becomes .close() .__exit__(..,..,..) -- becomes .feed(exc_info=(..,..,..)) Extensions to effbot's original consumer interface: 1. The .feed() method may return a value 2. Some way to raise an exception other than StopIteration inside the generator/consumer function. The use of a keyword argument to .feed is just an example. I'm looking for other suggestions on this one. No new builtins. No backward-compatibility methods and wrappers. Yes, it would have been nicer if .next() had been called __next__() in the first place. But at this stage I feel that the cost of "fixing" it far outweighs any perceived benefit. so much for "uncontroversial" parts! :-) Oren On 5/6/05, Guido van Rossum <gvanrossum at gmail.com> wrote: > [Steven Bethard] > > So, just to make sure, if we had another PEP that contained from PEP 340[1]: > > * Specification: the __next__() Method > > * Specification: the next() Built-in Function > > * Specification: a Change to the 'for' Loop > > * Specification: the Extended 'continue' Statement > > * the yield-expression part of Specification: Generator Exit Handling > > would that cover all the pieces you're concerned about? > > > > I'd be willing to break these off into a separate PEP if people think > > it's a good idea. I've seen very few complaints about any of these > > pieces of the proposal. If possible, I'd like to see these things > > approved now, so that the discussion could focus more directly on the > > block-statement issues. > > I don't think it's necessary to separate this out into a separate PEP; > that just seems busy-work. I agree these parts are orthogonal and > uncontroversial; a counter-PEP can suffice by stating that it's not > countering those items nor repeating them. > > -- > --Guido van Rossum (home page: http://www.python.org/~guido/) > _______________________________________________ > Python-Dev mailing list > Python-Dev at python.org > http://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: http://mail.python.org/mailman/options/python-dev/oren.tirosh%40gmail.com >
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