On 17 February 2017 at 20:23, Steven D'Aprano <st...@pearwood.info> wrote:
> > > I think it would be key, like async/await, to narrowly define the scope > in > > which the word delayed functions as a keyword. > > The PEP makes it clear that's just a transition phase: they will be > turned into proper keywords in Python 3.7. > > https://www.python.org/dev/peps/pep-0492/#id80 > > Python has had "pseudo-keywords" in the past, like "as": > > [steve@ando ~]$ python2.5 -c "import math as as; print as" > <module 'math' from '/usr/local/lib/python2.5/lib-dynload/math.so'> > > and it is my understanding that the core developers dislike this sort of > thing. As do I. You shouldn't count as getting the same special treament > as async/await. Maybe you will, maybe you won't. > Very well put! Do you have any suggestions for doing something in the same vein? I think there's been a [...] > That will make it pretty much impossible to tell whether something is a > delayed "thunk" or not, since *any* attempt to inspect it in any way > will cause it to reify. > > Maybe that's what we want. > In my mind, this is a plus. The only way to determine if something is delayed would be something that doesn't apply to anything else, so code never needs to be aware of delayed. > Earlier we talked about delayed *expressions* always generating the same > value, now you're talking about *instances* rather than expressions. It > makes sense to have keep the standard Python object semantics, rather > than have the value of a delayed thunk cached by the textual expression > that generated it. You are totally right. I agree that the nomenclature is important, and I think we're on the same page. [...] Steve- I really appreciate the thoughtful feedback! Please let me know if you have suggestions; I don't expect the idea to be acceptable out-of-the-gate. :) -Joseph
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