[Numpy-discussion] Deprecating ndarray.tostring()

[Ralf Gommers]

On Mon, Mar 30, 2020 at 1:09 PM Eric Wieser <wieser.eric+numpy at gmail.com>
wrote:

> Hi all,
>
> Just a heads up that in https://github.com/numpy/numpy/pull/15867 I plan
> to deprecate ndarray.tostring(), which is just a confusing way to spell
> ndarray.tobytes().
>
> This function has been documented as a compatibility alias since NumPy
> 1.9, but never emitted a warning upon use.
> Given array.array.tostring() has been warning as far back as Python 3.1,
> it seems like we should follow suit.
>
> In order to reduce the impact of such a deprecation, I’ve filed the
> necessary scipy PR: https://github.com/scipy/scipy/pull/11755.
> It’s unlikely we’ll remove this function entirely any time soon, but the
> act of deprecating it may cause a few failing CI runs in projects where
> warnings are turned into errors.
>

+1 agree with the deprecation, and with making it a long one given the
handful of uses in Matplotlib and several handfuls in SciPy.

Cheers,
Ralf
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