On Sun, 25 Nov 2018 at 03:41, Barry Warsaw <ba...@python.org> wrote:
> On Nov 24, 2018, at 12:02, Nick Coghlan <ncogh...@gmail.com> wrote:
> > * Maintaining parallel Python stacks is complicated: if you add a
> > second Python interpreter to a system, you have to duplicate all the
> > Standard Operating Environment APIs as well (distro Python stack
> > maintainers hit that constraint pretty often). That's a much bigger
> > increase in complexity than giving the existing stack an additional
> > alias.
>
> FTR, Debian/Ubuntu have been able to support multiple Python versions 
> (including multiple within the same major version number) for many years now.

Aye, and so has Fedora. Even RHEL/CentOS are going down that path for
the next several years. Google, Facebook, and a few others also
maintain their own in-house Python stacks.

However, there's no contradiction between "This task is sufficiently
difficult to be impractical for many, and perhaps even most, in-house
IT organisations" and "Despite the complexity of the task, some of the
largest Linux distributions and enterprise organisations do it
anyway".

Cheers,
Nick.

-- 
Nick Coghlan   |   ncogh...@gmail.com   |   Brisbane, Australia
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