[Numpy-discussion] Unsupporting python3.5

Charles R Harris charlesr.harris at gmail.com
Fri Oct 18 08:36:23 EDT 2019

On Fri, Oct 18, 2019 at 3:06 AM Ralf Gommers <ralf.gommers at gmail.com> wrote:

> On Fri, Oct 11, 2019 at 4:18 AM Charles R Harris <
> charlesr.harris at gmail.com> wrote:
>> On Thu, Oct 10, 2019 at 6:02 PM Stefan van der Walt <stefanv at berkeley.edu>
>> wrote:
>>> On Thu, Oct 10, 2019, at 09:34, Charles R Harris wrote:
>>> I think we can support 3.5 as long as we please, the question is how
>>> long we *want* to support it. I don't plan to release 1.18 wheels for 3.5,
>>> but I'm concerned about making 1.18 outright incompatible with 3.5. I would
>>> like to see the random interface settle before we do that. So my preference
>>> would be to drop 3.5 in 1.19 with a future warning in the 1.18 release
>>> notes. Alternatively, we could backport all the random changes to 1.17, but
>>> I would rather not do that.
> I'm not sure I like this approach, which is reflected in the current
> version of https://github.com/numpy/numpy/pull/14673. If we stop testing
> 3.5 in CI, don't release 3.5 wheels and remove the PyPI trove classifier
> for it (so installation tools may not install it anymore), then what's the
> point of saying we "don't drop it"? I'd rather keep it fully supported for
> one more month and release a couple of wheels, or just drop it completely.
> I don't have much of a preference which option is better, just would like
> to avoid half-dropping it.
That's fair. The 1.17.3 release supporting Python 3.5--3.8 went well
enough. The only glitch was that I had to explicitly use OSX 10.6 and icode
6.4 for the 3.5 wheels on the Mac.

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