Thanks for info! Kind Regards,
Abdur-Rahmaan Janhangeer compileralchemy.com <https://www.compileralchemy.com> | github <https://github.com/Abdur-rahmaanJ/> Mauritius On Mon, Mar 23, 2020 at 10:56 PM Chris Barker <chris.bar...@noaa.gov> wrote: > On Thu, Mar 5, 2020 at 2:15 PM Gregory Lee <grle...@gmail.com> wrote: > >> If i can get a link to a file that shows how dunder methods help with >>> having cool coding APIs that would be great! >>> >>> >> You may want to take a look at PEP 465 as an example, then. If I recall >> correctly, the __matmul__ method described in it was added to the standard >> library largely with NumPy in mind. >> https://www.python.org/dev/peps/pep-0465/ >> > > and so were "rich comparisons", and in-place operators (at least in part). > > numpy is VERY, VERY, heavily built on the concept of overloading > operators, i.e. using dunders or magic methods. > > I'm going to venture a guess that numpy arrays custom define every single > standard dunder -- and certainly most of them. > > -CHB > > > > > >> On Thu, Mar 5, 2020 at 10:32 PM Sebastian Berg < >>> sebast...@sipsolutions.net> wrote: >>> >>>> Hi, >>>> >>>> On Thu, 2020-03-05 at 11:14 +0400, Abdur-Rahmaan Janhangeer wrote: >>>> > Greetings list, >>>> > >>>> > I have a talk about dunder methods in Python >>>> > >>>> > ( >>>> > >>>> https://conference.mscc.mu/speaker/67604187-57c3-4be6-987c-ea4bef388ad3 >>>> > ) >>>> > >>>> > and it would be nice to include Numpy in the mix. Can someone point >>>> > me to one or two use cases / file link where dunder methods help >>>> > numpy? >>>> > >>>> >>>> I am not sure in what sense you are looking for. NumPy has its own set >>>> of dunder methods (some of which should not be used super much >>>> probably), like `__array__`, `__array_interface__`, `__array_ufunc__`, >>>> `__array_function__`, `__array_finalize__`, ... >>>> So we are using `__array_*__` for numpy related dunders. >>>> >>>> Of course we use most Python defined dunders, but I am not sure that >>>> you are looking for that? >>>> >>>> Best, >>>> >>>> Sebastian >>>> >>>> >>>> > Thanks >>>> > >>>> > fun info: i am a tiny numpy contributor with a one line merge. >>>> > _______________________________________________ >>>> > 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 >> > > > -- > > Christopher Barker, Ph.D. > Oceanographer > > Emergency Response Division > NOAA/NOS/OR&R (206) 526-6959 voice > 7600 Sand Point Way NE (206) 526-6329 fax > Seattle, WA 98115 (206) 526-6317 main reception > > chris.bar...@noaa.gov > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@python.org > https://mail.python.org/mailman/listinfo/numpy-discussion >
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