Re: What's our minimum supported Python version?

Jacob Champion <jacob(dot)champion(at)enterprisedb(dot)com> writes:
> As for picking a version... 3.6 will have been EOL for almost three
> years by the time 18 releases. It seems like we would drop it happily,
> were it not for RHEL8.

Agreed, but RHEL8 is out there and I don't think we can just drop
support for it. I'm also not excited by the idea that an incidental
test script gets to dictate what the cutoff is.

I do think we should stop claiming that Python 3.2 will work.
(Maybe it does, but we don't know that.) I see that the configure
script only checks for Python >= 3, and it doesn't look like the
meson scripts check explicitly at all, although there's a comment
saying that our meson version cutoff is intended to allow working
with Python 3.5.

Maybe it's sufficient to make a documentation change here, and
say we support Python >= 3.5? I'd be okay with saying 3.6.8
too, on the grounds that if anything older fails to work we'd
almost certainly just say "too bad". But RHEL8 is widespread
enough that I think we need to keep making the effort for 3.6.8.

regards, tom lane