On Tue, 22 Jun 2021 at 10:06, Petr Viktorin <encukou@gmail.com> wrote:
On 21. 06. 21 20:20, Guido van Rossum wrote:
> Okay, I think your evidence can then be discounted. Really, any app that
> relies on the publicly installed Python runs a serious risk of breaking
> when that Python gets updated, regardless of whether the ABI changes or not.

Unfortunately, this includes scripts for any extensible software
(Mayavi, GIMP, etc) -- even if Python is bundled with that software,
upgrading the software risks breaking the scripts.

I'm confused by what you mean by this, or why it is a problem?

If I upgrade GIMP (and it vendors some version/variant of Python), it is not unreasonable that this would break a script that I have written in GIMPython? (GIMP should probably mention that it has changed its Python and how in the changelog/release notes)

If I upgrade my OS, and I use the system Python, scripts I have written might break too.

(Of course, GIMP is a placeholder here, I do not actually know what it does in terms of Python (vendoring), if at all.