[Debian-med-packaging] Python 3.9 for bullseye

[Thomas Goirand]

On 10/18/20 12:13 PM, Matthias Klose wrote:
> Python 3.9 as a supported Python3 version is now in unstable, and all binNMUs
> are done (thanks to Graham for the work).   Bug reports should be all filed for
> all known problems [1], and the current state of the 3.9 addition can be seen at
> [2] (a few of the "bad" are false packages with b-d n python3-all-dev, but not
> building for 3.9, bug reports also filed).
> 
> The major outstanding issue is the pandas stack, all other problems are found in
> leaf packages (leaf in the sense of that no other package for the 3.9 addition
> is blocked).
> 
> Please help fixing the remaining issues!
> 
> Matthias

Hi Matthias,

I don't know if that was on purpose, but you happen to upload Python 3.9
in Unstable the day OpenStack was released. I then rebuilt all of
OpenStack to upload from Experimental to Unstable, and to my surprise,
it went very well (note: all packages in the OpenStack team are running
unit tests at build time on all available Python versions). Only 2
issues happened multiple times:
- base64.{en,de}codestring removal (easy fix: s/string/bytes/)
- Threading.isAlive removal (easy fix too: s/isAlive/is_alive/)

This happened

This is on a set of 200+ packages which I manually rebuilt.

I do expect that there will be more packages with the same issue, so
it'd be nice to have all Python-using packages rebuilt. As Lucas
Nussbaum proposed such a service, should we ask him to do such a massive
rebuilt? Or maybe you have other plans?

Cheers,

Thomas Goirand (zigo)