[Numpy-discussion] Proposal of timeline for dropping Python 2.7 support

[Peter Cock]

On Tue, Nov 7, 2017 at 11:40 PM, Nathaniel Smith <njs at pobox.com> wrote:
>
> <snip>
>
> Right now, the decision in front of us is what to tell people who ask about
> numpy's py2 support plans, so that they can make their own plans. Given what
> we know right now, I don't think we should promise to keep support past
> 2018. If we get there and the situation's changed, and there's both desire
> and means to extend support we can revisit that. But's better to
> under-promise and possibly over-deliver, instead of promising to support py2
> until after it becomes a millstone around our necks and then realizing we
> haven't warned anyone and are stuck supporting it another year beyond
> that...
>
> -n

NumPy (and to a lesser extent SciPy) is in a tough position being at the
bottom of many scientific Python programming stacks. Whenever you
drop Python 2 support is going to upset someone.

It is too ambitious to pledge to drop support for Python 2.7 no later than
2020, coinciding with the Python development team’s timeline for dropping
support for Python 2.7?

If that looks doable, NumPy could sign up to http://www.python3statement.org/

Regards,

Peter