I think I'm -0.5 but I have a question for the people on here smarter than me (pretty much all):
Is there some opportunity for some kind of compiler magic when the iterable of a for loop is fully contained in a place easily findable by the compiler, and not spread over multiple if and for statements? I am imagining that something like this could be magically "looked into" and made more efficient in some way, maybe by JIT complier or something: for x for y in range(11, 100, 3) if (y % 10) for x in range(y): frob(x) compared to this: for y in range(11, 100, 3): if (y % 10); for x in range(y): frob(x) Am I instilling too much faith in the power of the complier on this Ash Wednesday morning? ;) --- Ricky. "I've never met a Kentucky man who wasn't either thinking about going home or actually going home." - Happy Chandler On Wed, Mar 2, 2022 at 7:13 AM Dennis Sweeney <sweeney.dennis...@gmail.com> wrote: > I've heard "evaluation map" for a related mathematical concept: the > natural map from X to (X -> Y) -> Y in some cartesian closed category > (whatever that means :-), like the natural embedding of a vector space into > its double dual space, or like this sort of eval_at function that you can > then plug into map: > > def eval_at(x): > return lambda f: f(x) > list(map(eval_at(arg), functions)) > > It also reminds me of a Clojure feature, where IIRC a key can be used as a > function so that `(:key mymap)` and `(mymap :key)` both mean "the value in > `mymap` corresponding to the key `:key`" > _______________________________________________ > Python-ideas mailing list -- python-ideas@python.org > To unsubscribe send an email to python-ideas-le...@python.org > https://mail.python.org/mailman3/lists/python-ideas.python.org/ > Message archived at > https://mail.python.org/archives/list/python-ideas@python.org/message/YFYX76ORCN4VTP2YZFWIBFIJDZ7MF7XZ/ > Code of Conduct: http://python.org/psf/codeofconduct/ >
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