[cctbxbb] Python 3.12 release schedule

[Luc Bourhis]

I have a question about the conda packages actually: I found out that cctbx-base is build with `—builder=cctbx`, by reading the recipe on the subrepository cctbx-base-feedstock on the conda-forge repo. But I can’t find a subrepo for the conda package cctbx.  
What is the exact difference between cctbx-base and cctbx?

> On 26 Feb 2024, at 09:42, Luc Bourhis <luc_j_bourhis at mac.com> wrote:
> 
> Hi Billy,
> 
> brilliant. We will try the cctbx-nightly in due course. Actually, it would be useful to us to have a minimal cctbx conda package. The equivalent of the build option cctbx-light would be perfect. It is all we need and it would minimise the risk of conflicts. Conda/mamba is very good but not invulnerable as our recent problems at Bruker shows. Eventually, this is not utterly critical because both the Anaconda people and you guys in charge of cctbx are amazing. So things get sorted out quickly enough. But still, I don’t like Damocles swords!
> 
> Best wishes,
> 
> Luc
> 
> 
>> On 24 Feb 2024, at 14:34, Billy Poon <bkpoon at lbl.gov <mailto:bkpoon at lbl.gov>> wrote:
>> 
>> Hi Luc,
>> 
>> There are currently nightly conda packages for Python 3.12 on the cctbx-nightly channel (https://anaconda.org/cctbx-nightly/ <https://anaconda.org/cctbx-nightly/>). The nightly tests are also run on that version (https://github.com/cctbx/cctbx_project?tab=readme-ov-file#nightly-checks-of-current-release-and-nightly-builds-except-for-apple-silicon <https://github.com/cctbx/cctbx_project?tab=readme-ov-file#nightly-checks-of-current-release-and-nightly-builds-except-for-apple-silicon>). There is a holdup to the migration on conda-forge because the pyside2 package is not available for Python 3.12. We will move that dependency to pyside6 (probably in a month or so) so that the migration can proceed. I removed the GUI packages (wxpython and pyside2, wxpython Python 3.12 support is available now) from the cctbx-nightly cctbx package so that I could build the Python 3.12 packages. Once the conda-forge package is migrated, I can add back the GUI dependencies to our nightly builds.
>> 
>> If you test the nightly packages, let me know if you find any issues on Python 3.12. Thanks!
>> 
>> --
>> Billy K. Poon
>> Research Scientist, Molecular Biophysics and Integrated Bioimaging
>> Lawrence Berkeley National Laboratory
>> 1 Cyclotron Road, M/S 33R0345
>> Berkeley, CA 94720
>> Fax: (510) 486-5909
>> Web: https://phenix-online.org <https://phenix-online.org/>
>> 
>> On Wed, Feb 21, 2024 at 12:35 AM Luc Bourhis <luc_j_bourhis at mac.com <mailto:luc_j_bourhis at mac.com>> wrote:
>> Hi,
>> 
>> I see in the commit that you guys are working on supporting Python 3.12. With the latest version of Python 3.11 on Anaconda, we have a compatibility issue between Qt that we use and ICU 70.1 that cctbx requires. The problem is solved by moving to Python 3.12, hence my question: when can we hope to see a release with Python 3.12? No pressure! Just trying to plan ahead.
>> 
>> Best wishes,
>> 
>> Luc
>> 
>> 
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