As I wrote before, I think a multi-getter FUNCTION is a useful thing. In fact, I linked to several libraries that provide variations on the idea.
But there are a number of choice to make about the behavior of that, and absolutely no reason it needs to be in the standard library, let alone a method on common collections, and still less dedicated syntax On Sat, Sep 4, 2021, 2:06 PM Brendan Barnwell <brenb...@brenbarn.net> wrote: > On 2021-09-04 05:47, Matsuoka Takuo wrote: > > On Sat, 4 Sept 2021 at 16:33, Brendan Barnwell <brenb...@brenbarn.net> > wrote: > >> > >> In other words, currently `*` can turn what looks like one > function > >> call with one thing inside it into one function call with several things > >> inside it. You are proposing to make it so `*` can turn one indexing > >> operation with one thing inside it into several indexing operations each > >> with one thing inside it. I think that is quite different. > > > > I'm not strongly against your conclusion, but I think the two use of > > `*` are analogous in fact. Consider for instance, > > > > ``` > > from functools import partial > > > > curry = partial(partial, partial) > > F = curry(curry(f)) > > ``` > > > > Now F has the same amount of information as f does in the sense that > > e.g., `f(1,2,3)` is equivalent to `F(1)(2)(3)`. I suspect the > > proposer's idea comes from an analogy to this. > > But where is the *-unpacking there? You just showed a > function-call > equivalent of the multi-getter function that I suggested. I agree > that's useful in that if you want to convert multiple arguments into > multiple function calls you can make a new function that does that, but > that's not what *-unpacking does. > > -- > Brendan Barnwell > "Do not follow where the path may lead. Go, instead, where there is no > path, and leave a trail." > --author unknown > _______________________________________________ > 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/KPMACJKK23CNDDQYGSGVMZEBFRFHHQWK/ > Code of Conduct: http://python.org/psf/codeofconduct/ >
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