That was a problem with the colon that occurred to me. I think it can't be tokenized in function annotations.
Plus I still think the no-colon looks better. But that's bikeshedding. Also other words are plausible. I like lazy even more than delayed, I think. Still, I'd love the construct whatever the exact spelling. On Feb 17, 2017 12:41 PM, "Joshua Morton" <joshua.morto...@gmail.com> wrote: > I think it could even be true without, but the colon may cause ambiguity > problems with function annotations. > > def foo(delayed: delayed: 1 + 2) > > is a bit odd, especially if `delayed` is chainable. > > --Josh > > On Fri, Feb 17, 2017 at 3:32 PM Joseph Hackman <josephhack...@gmail.com> > wrote: > >> Couldn't the same thing be true of delayed if it is always followed by a >> colon? >> >> I.e. >> delayed=1 >> x= delayed: slow_function() >> print(delayed) # prints 1 >> >> -Joseph >> >> On Feb 17, 2017, at 2:39 PM, Mark E. Haase <meha...@gmail.com> wrote: >> >> On Fri, Feb 17, 2017 at 1:55 PM, Joshua Morton <joshua.morto...@gmail.com >> > wrote: >> >> but I'm wondering how common async and await were when that was proposed >> and accepted? >> >> >> Actually, "async" and "await" are backwards compatible due to a clever >> tokenizer hack. The "async" keyword may only appear in a few places (e.g. >> async def), and it is treated as a name anywhere else.The "await" keyword >> may only appear inside an "async def" and is treated as a name everywhere >> else. Therefore... >> >> >>> async = 1 >> >>> await = 1 >> >> ...these are both valid in Python 3.5. This example is helpful when >> proposing new keywords. >> >> More info: https://www.python.org/dev/peps/pep-0492/#transition-plan >> >> >> _______________________________________________ >> Python-ideas mailing list >> Python-ideas@python.org >> https://mail.python.org/mailman/listinfo/python-ideas >> Code of Conduct: http://python.org/psf/codeofconduct/ >> >> _______________________________________________ >> Python-ideas mailing list >> Python-ideas@python.org >> https://mail.python.org/mailman/listinfo/python-ideas >> Code of Conduct: http://python.org/psf/codeofconduct/ > > > _______________________________________________ > Python-ideas mailing list > Python-ideas@python.org > https://mail.python.org/mailman/listinfo/python-ideas > Code of Conduct: http://python.org/psf/codeofconduct/ >
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