[Numpy-discussion] Deprecating matrices.

[Ralf Gommers]

On Tue, Jan 3, 2017 at 2:36 PM, Charles R Harris <charlesr.harris at gmail.com>
wrote:

> Hi All,
>
> Just throwing this click bait out for discussion. Now that the `@`
> operator is available and things seem to be moving towards Python 3,
> especially in the classroom, we should consider the real possibility of
> deprecating the matrix type and later removing it. No doubt there are old
> scripts that require them, but older versions of numpy are available for
> those who need to run old scripts.
>
> Thoughts?
>

Clearly deprecate in the docs now, and warn only later imho. We can't warn
before we have a good solution for scipy.sparse matrices, which have matrix
semantics and return matrix instances.

Ralf
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