Yes, a tuple of types would make more sense, given `isinstance` -- string abbreviations for those could be there for convenience. -- Marten
On Sat, Mar 17, 2018 at 8:25 PM, Eric Wieser <wieser.eric+nu...@gmail.com> wrote: > I would have thought that a simple tuple of types would be more appropriate > than using integer flags, since that means that isinstance can be used on > the individual elements. Ideally there’d be a typing.Intersection[TraitA, > TraitB] for this kind of thing. > > > On Sat, 17 Mar 2018 at 15:10 Thomas Caswell <tcasw...@gmail.com> wrote: >> >> Yes, meant IntFlag :sheep: >> >> On Sat, Mar 17, 2018 at 6:02 PM Hameer Abbasi <einstein.edi...@gmail.com> >> wrote: >>> >>> >>> It would be nice if there was an IntEnum [1] that was taken is an input >>> to `np.asarrayish` and `np.isarrayish` to require a combination of the >>> groups of attributes/methods/semantics. >>> >>> >>> Don’t you mean IntFlag? I like Marten’s idea of “grouping together” >>> related functionality via ABCs and implementing different parts via ABCs >>> (for example, in pydata/sparse we use NDArrayOperatorsMixin for exactly >>> this), but I believe that separate ABCs should be provided for different >>> parts of the interface. >>> >>> Then we can either: >>> >>> Check with isinstance for the ABCs, or >>> Check with hasattr. >>> >>> I like the IntFlag idea most (it seems to be designed for use-cases like >>> these), but a string-based (np.aspyarray(x, >>> functionality=‘arithmetic|reductions')) or list-based (np.aspyarray(x, >>> functionality=[‘arithmetic’, ‘reductions’]) is also fine. >>> >>> It might help to have some sort of a “dry-run” interface that (given a >>> run of code) figures out which parts you need. >>> >>> _______________________________________________ >>> NumPy-Discussion mailing list >>> NumPy-Discussion@python.org >>> https://mail.python.org/mailman/listinfo/numpy-discussion >> >> _______________________________________________ >> NumPy-Discussion mailing list >> NumPy-Discussion@python.org >> https://mail.python.org/mailman/listinfo/numpy-discussion > > > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@python.org > https://mail.python.org/mailman/listinfo/numpy-discussion > _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@python.org https://mail.python.org/mailman/listinfo/numpy-discussion
