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Groups > linux.debian.maint.python > #15339

Re: cython 3.x (for Python 3.12)

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On Sun, Dec 10, 2023 at 08:12:40PM +0000, Julian Gilbey wrote:
> On Sat, Nov 25, 2023 at 04:23:46PM +0000, Stefano Rivera wrote:
> > As part of preparing for Python 3.12 in Debian, I've uploaded cython 3
> > to experimental.
> > [...]
> > 
> > So, that's 71 regressions with cython3. dd-list below. Please help us
> > port to cython 3. If this isn't possible, Graham is preparing a
> > cython-legacy package, to help the stragglers. But we're expecting that
> > this won't have great Python 3.12 support...
> > https://ftp-master.debian.org/new/cython-legacy_0.29.36-1~exp1.html
> 
> I find that there's also a significant issue with relying on
> cython3-legacy: it conflicts with cython3, meaning that it will be
> impossible to simultaneously install packages depending on cython3 and
> cython3-legacy.  Once cython 3.x moves from experimental to unstable
> to testing and packages start depending on it, this will become a
> significant issue.  I assume that the aim will be for everything to be
> ported to cython 3.x and for cython3-legacy to be dropped from testing
> before the trixie freeze?
I wonder how many packages actually need a runtime dep on cython. I
quickly checked three packages from `reverse-depends cython3` and while
python3-pysph probably uses cython to generate code at the run time (not
sure), python3-pyzoltan seems to only use it at the build time and
python3-epimodels doesn't seem to use it at all.

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Thread

cython 3.x (for Python 3.12) Stefano Rivera <stefanor@debian.org> - 2023-11-25 17:30 +0100
  Re: cython 3.x (for Python 3.12) Stefano Rivera <stefanor@debian.org> - 2023-11-25 17:50 +0100
  Re: cython 3.x (for Python 3.12) julien.puydt@gmail.com - 2023-11-26 21:30 +0100
  Re: cython 3.x (for Python 3.12) julien.puydt@gmail.com - 2023-11-30 08:30 +0100
    Re: cython 3.x (for Python 3.12) julien.puydt@gmail.com - 2023-12-12 09:20 +0100
  Re: cython 3.x (for Python 3.12) Julian Gilbey <julian@d-and-j.net> - 2023-11-30 22:20 +0100
  Re: cython 3.x (for Python 3.12) Julian Gilbey <jdg@debian.org> - 2023-12-10 21:20 +0100
    Re: cython 3.x (for Python 3.12) Andrey Rakhmatullin <wrar@wrar.name> - 2023-12-10 21:40 +0100
      Re: cython 3.x (for Python 3.12) Andrey Rakhmatullin <wrar@wrar.name> - 2023-12-10 21:40 +0100
        Re: cython 3.x (for Python 3.12) Matthias Klose <doko@debian.org> - 2023-12-11 08:10 +0100
          Re: cython 3.x (for Python 3.12) Matthias Klose <doko@debian.org> - 2023-12-11 09:50 +0100
          Re: cython 3.x (for Python 3.12) Julian Gilbey <julian@d-and-j.net> - 2023-12-11 11:30 +0100
          Re: cython 3.x (for Python 3.12) Matthias Klose <doko@debian.org> - 2023-12-11 16:40 +0100
            Re: cython 3.x (for Python 3.12) Julian Gilbey <julian@d-and-j.net> - 2023-12-11 20:00 +0100
              Re: cython 3.x (for Python 3.12) Matthias Klose <doko@debian.org> - 2023-12-11 20:10 +0100
  Re: cython 3.x (for Python 3.12) Julian Gilbey <julian@d-and-j.net> - 2023-12-12 20:00 +0100

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