Removing support for Python 3.6 (even 3.7?) this cycle (for upcoming hg-6.9)

[Mike Hommey]

On Thu, Jul 25, 2024 at 06:07:01AM -0700, Gregory Szorc wrote:
> Historically Python version support was tied to OS’s within support windows. And the long tail there is usually RHEL. Those timelines are listed at https://access.redhat.com/product-life-cycles?product=Red%20Hat%20Enterprise%20Linux,OpenShift%20Container%20Platform%204.
> 
> RHEL 7 is still within extended support and 8 is within maintenance support. 
> 
> RHEL’s support window is an eternity. I think it imposes an excessive burden on Mercurial developers to support ancient Pythons for that long.

Note that RHEL does have additional channels with newer versions of
python, although I don't know how to tell which ones are available.

Mike