On Tue, Oct 6, 2015 at 5:58 PM, Nathaniel Smith <n...@pobox.com> wrote:
> On Tue, Oct 6, 2015 at 9:51 AM, David Cournapeau <courn...@gmail.com> > wrote: > > > > On Tue, Oct 6, 2015 at 5:44 PM, Nathaniel Smith <n...@pobox.com> wrote: > >> > >> On Tue, Oct 6, 2015 at 4:46 AM, David Cournapeau <courn...@gmail.com> > >> wrote: > >> > The npy_ functions in npymath were designed to be exported. Those > would > >> > stay > >> > that way. > >> > >> If we want to export these then I vote that we either: > >> - use the usual API export mechanism, or else > >> - provide a static library for people to link to, instead of trying to > >> do runtime binding. (I.e. drop it in some known place, and then > >> provide some functions for extension modules to find it at build time > >> -- similar to how np.get_include() works.) > > > > Unless something changed, that's more or less how it works already > (npymath > > is used in scipy, for example, which was one of the rationale for > writing it > > in the first place !). > > Okay... in fact multiarray.so right now *does* export tons and tons of > random junk into the global symbol namespace (on systems like Linux > that do have a global symbol namespace), so it isn't obvious whether > people are asking for that to continue :-). I'm just specifically > saying that we should try to get this back down to the 1 exported > symbol. > > (Try: > objdump -T $(python -c 'import numpy; > print(numpy.core.multiarray.__file__)') > This *should* print 1 line... I currently get ~700. numpy.core.umath > is similar.) > > I think this overestimates the amount by quite a bit, since you see GLIBC symbols, etc... I am using nm -Dg --defined-only $(python -c 'import numpy; print(numpy.core.multiarray.__file__)') instead. I see around 290 symboles: the npy_ from npymath don't bother me, but the ones from npysort do. We should at least prefix those with npy_ (I don't think npysort API has ever been publisher in our header like npymath was ?) David -n > > -- > Nathaniel J. Smith -- http://vorpus.org > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@scipy.org > https://mail.scipy.org/mailman/listinfo/numpy-discussion >
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