As part of preparing for Python 3.12 in Debian, I've uploaded cython 3
to experimental.

I did some test-building of reverse dependencies, and quite a lot of
them fail.

Out of 291 packages that build-depend on cython3:
    104  attempted     <- FTBFS
      6  given-back    <- build-deps aren't installable
      1  skipped       <- not for arm64
    180  successful
https://people.debian.org/~stefanor/cython3/cython-3.0.5/summary.txt
https://people.debian.org/~stefanor/cython3/cython-3.0.5/stats.txt

I re-tried those "attempted" failures, with cython 0.29.36 to find the
regressions and:
     32  attempted
      1  given-back
     71  successful
https://people.debian.org/~stefanor/cython3/cython-0.29.36/summary.txt
https://people.debian.org/~stefanor/cython3/cython-0.29.36/stats.txt

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

Stefano

Regression dd-list:

Adrian Vondendriesch <adrian.vondendrie...@credativ.de>
   peewee (U)

Alastair McKinstry <mckins...@debian.org>
   adios

Andreas Tille <ti...@debian.org>
   atropos (U)
   macs (U)
   python-cykhash (U)
   python-cytoolz (U)
   python-skbio (U)
   python-srsly (U)
   python-thinc (U)
   tombo (U)

Anton Gladky <gl...@debian.org>
   sfepy (U)

Antonio Valentino <antonio.valent...@tiscali.it>
   cyarray (U)
   pysph (U)
   python-ltfatpy (U)
   pyzoltan (U)

B. Clausius <ba...@gmx.de>
   pybik (U)

Bastian Venthur <vent...@debian.org>
   kivy (U)

Benjamin Drung <bdr...@ubuntu.com>
   rdma-core

Boyuan Yang <by...@debian.org>
   py-libzfs (U)

ChangZhuo Chen (陳昌倬) <czc...@debian.org>
   python-feather-format (U)

Dean Serenevy <d...@serenevy.net>
   kivy (U)

Debian Astro Team <debian-astro-maintain...@lists.alioth.debian.org>
   healpy
   montage
   pyregion

Debian Fonts Task Force <debian-fo...@lists.debian.org>
   compreffor
   pyclipper

Debian Games Team <pkg-games-de...@lists.alioth.debian.org>
   pygame-sdl2
   python-sfml

Debian Med Packaging Team <debian-med-packag...@lists.alioth.debian.org>
   atropos
   cyvcf2
   macs
   nipy
   python-cykhash
   python-skbio
   tombo

Debian Multimedia Maintainers <debian-multime...@lists.debian.org>
   pyliblo

Debian PaN Maintainers <debian-pan-maintain...@alioth-lists.debian.net>
   opentsne

Debian Python Modules Team <team+pyt...@tracker.debian.org>
   fpylll

Debian Python Team <team+pyt...@tracker.debian.org>
   azure-uamqp-python
   indexed-gzip
   kivy
   mayavi2
   numpy (U)
   peewee
   py-libzfs
   pybik
   pymssql
   pyreadstat (U)
   pystemmer
   python-cassandra-driver
   python-cytoolz
   python-feather-format
   python-hidapi
   python-line-profiler
   python-llfuse (U)
   python-openstep-plist
   python-pcl
   python-pomegranate
   python-srsly
   python-stack-data
   python-thriftpy
   uvloop (U)

Debian QA Group <packa...@qa.debian.org>
   xmms2

Debian Science Maintainers <debian-science-maintain...@lists.alioth.debian.org>
   cyarray
   gensim
   h5py
   libgpuarray
   mpi4py-fft
   opentsne (U)
   petsc4py
   pyfftw
   pysph
   python-ltfatpy
   python-thinc
   pyzoltan
   sfepy
   statsmodels

Debian Science Team <debian-science-maintain...@lists.alioth.debian.org>
   cypari2
   pandas
   pplpy

Debian ZFS on Linux maintainers <pkg-zfsonlinux-de...@alioth-lists.debian.net>
   py-libzfs (U)

Debichem Team <debichem-de...@lists.alioth.debian.org>
   mdtraj

Diane Trout <di...@ghic.org>
   statsmodels (U)

Drew Parsons <dpars...@debian.org>
   mdtraj (U)
   mpi4py-fft (U)
   petsc4py (U)

Emmanuel Arias <eam...@debian.org>
   python-cassandra-driver (U)

Free Ekanayaka <fr...@debian.org>
   pyliblo (U)

Gard Spreemann <g...@nonempty.org>
   gudhi
   python-pyspike

Geoffrey Thomas <geo...@ldpreload.com>
   pymssql (U)

Ghislain Antony Vaillant <ghisv...@gmail.com>
   h5py (U)
   libgpuarray (U)
   pyfftw (U)
   python-line-profiler (U)

Gianfranco Costamagna <locutusofb...@debian.org>
   python-esmre

Gijs Molenaar <g...@pythonic.nl>
   montage (U)

Gordon Ball <gor...@chronitis.net>
   python-stack-data (U)

gtkpod Maintainers <pkg-gtkpod-de...@alioth-lists.debian.net>
   libimobiledevice

Hilko Bengen <ben...@debian.org>
   python-acora

James Cowgill <jcowg...@debian.org>
   python-sfml (U)

Jaromír Mikeš <mira.mi...@seznam.cz>
   pyliblo (U)

Jeremy Bicha <jbi...@debian.org>
   compreffor (U)
   pyclipper (U)

Jerome Benoit <calcu...@rezozer.net>
   fpylll (U)

Jochen Sprickerhof <jspri...@debian.org>
   python-pcl (U)

Jonas Smedegaard <d...@jones.dk>
   python-av

Joost van Baal-Ilić <joos...@debian.org>
   pyreadstat

Josue Ortega <jo...@debian.org>
   python-rtmidi

Julien Puydt <jpu...@debian.org>
   fpylll (U)
   pplpy (U)

Kevin Murray <kdmf...@gmail.com>
   python-skbio (U)

Kunal Mehta <lego...@debian.org>
   python-libzim

Leo Singer <leo.sin...@ligo.org>
   healpy (U)

Liubov Chuprikova <chuprikov...@gmail.com>
   cyvcf2 (U)

Luca Boccassi <bl...@debian.org>
   azure-uamqp-python (U)

Markus Koschany <a...@debian.org>
   pygame-sdl2 (U)

Matthias Klose <d...@debian.org>
   pygccjit

Michael Hanke <michael.ha...@gmail.com>
   pandas (U)
   statsmodels (U)

Michael Hanke <m...@debian.org>
   indexed-gzip (U)

Michael R. Crusoe <cru...@debian.org>
   macs (U)
   python-pomegranate (U)

Mo Zhou <cdlumin...@gmail.com>
   h5py (U)

Nikolaus Rath <nikol...@rath.org>
   python-llfuse

Nilesh Patra <nil...@debian.org>
   python-cytoolz (U)

Ole Streicher <oleb...@debian.org>
   montage (U)

Olivier Sallou <osal...@debian.org>
   python-thriftpy (U)

Paul Wise <p...@debian.org>
   gensim (U)

Picca Frédéric-Emmanuel <pi...@debian.org>
   opentsne (U)

Piotr Ożarowski <pi...@debian.org>
   uvloop

Rebecca N. Palmer <rebecca_pal...@zoho.com>
   libgpuarray (U)
   pandas (U)
   statsmodels (U)

Richard Ulrich <ri...@paraeasy.ch>
   python-hidapi (U)

Roland Mas <lola...@debian.org>
   python-orderedset

Sandro Tosi <mo...@debian.org>
   numpy

Sebastien Delafond <s...@debian.org>
   opentsne (U)

Stefano Rivera <stefa...@debian.org>
   pystemmer (U)

Steffen Moeller <moel...@debian.org>
   cyvcf2 (U)
   python-pomegranate (U)

Tobias Hansen <than...@debian.org>
   cypari2 (U)
   pplpy (U)

Varun Hiremath <va...@debian.org>
   mayavi2 (U)

Vincent Cheng <vch...@debian.org>
   kivy (U)

Vincent Prat <v...@debian.org>
   pyregion (U)

Ximin Luo <infini...@debian.org>
   cypari2 (U)
   fpylll (U)

Yao Wei (魏銘廷) <m...@debian.org>
   python-openstep-plist (U)

Yaroslav Halchenko <deb...@onerussian.com>
   indexed-gzip (U)
   pandas (U)
   statsmodels (U)

Yves-Alexis Perez <cor...@debian.org>
   libimobiledevice (U)

Étienne Mollier <emoll...@debian.org>
   nipy (U)

-- 
Stefano Rivera
  http://tumbleweed.org.za/
  +1 415 683 3272

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