On Fri, Jan 6, 2017 at 8:28 PM, Ralf Gommers <ralf.gomm...@gmail.com> wrote:
> > > On Sat, Jan 7, 2017 at 2:21 PM, CJ Carey <perimosocord...@gmail.com> > wrote: > >> >> On Fri, Jan 6, 2017 at 6:19 PM, Ralf Gommers <ralf.gomm...@gmail.com> >> wrote: >> >>> This sounds like a reasonable idea. Timeline could be something like: >>> >>> 1. Now: create new package, deprecate np.matrix in docs. >>> 2. In say 1.5 years: start issuing visible deprecation warnings in numpy >>> 3. After 2020: remove matrix from numpy. >>> >>> Ralf >>> >> >> I think this sounds reasonable, and reminds me of the deliberate >> deprecation process taken for scipy.weave. I guess we'll see how successful >> it was when 0.19 is released. >> >> The major problem I have with removing numpy matrices is the effect on >> scipy.sparse, which mostly-consistently mimics numpy.matrix semantics and >> often produces numpy.matrix results when densifying. The two are coupled >> tightly enough that if numpy matrices go away, all of the existing sparse >> matrix classes will have to go at the same time. >> >> I don't think that would be the end of the world, >> > > Not the end of the world literally, but the impact would be pretty major. > I think we're stuck with scipy.sparse, and may at some point will add a new > sparse *array* implementation next to it. For scipy we will have to add a > dependency on the new npmatrix package or vendor it. > That sounds to me like moving maintenance of numpy.matrix from numpy to scipy, if scipy.sparse is one of the main users and still depends on it. Josef > > Ralf > > > >> but it's definitely something that should happen while scipy is still >> pre-1.0, if it's ever going to happen. >> >> _______________________________________________ >> NumPy-Discussion mailing list >> NumPy-Discussion@scipy.org >> https://mail.scipy.org/mailman/listinfo/numpy-discussion >> >> > > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@scipy.org > https://mail.scipy.org/mailman/listinfo/numpy-discussion > >
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