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Re: cython 3.x (for Python 3.12)

On 11.12.23 19:55, Julian Gilbey wrote:

On Mon, Dec 11, 2023 at 04:34:17PM +0100, Matthias Klose wrote:

On 11.12.23 16:19, Julian Gilbey wrote:

On Mon, Dec 11, 2023 at 08:09:31AM +0100, Matthias Klose wrote:

[...]
You could package a non-conflicting cython-legacy, however that would
require more changes, also how to build it.


Hi Matthias,

Unfortunately, at least some of cython3-legacy doesn't currently work
with Python 3.12, and is the primary cause of (at least) #1056531.
cython3 provides the pyximport module, and that uses the imp module
which has been removed from Python 3.12.

Two possible ways forward on this particular bug:

- Disable all of the cython tests for this package for the time being,
    until cython 3.x migrates to testing - this is simple and effective.

- Patch cython3-legacy to use importlib rather than imp.  This is
    probably a good thing to do anyway.  (It may also be good to do this
    with cython3 version 0.x currently in testing/unstable until cython
    3.x is able to be uploaded to unstable.)  Then have my package's
    autopkgtest depend on cython3-legacy (unless cython3 0.x is also
    patched).


I won't working on this. Have you tried to depend on the python3-zombie-imp
instead?


Excellent - I didn't know about that.  Are you OK for me to upload
versions of cython and cython-legacy which depend on this to fix the
Python 3.12 breakage?
not for cython, which won't need that soonish for 3.0.x. and if you have to update the b-d to cython3-legacy, why not add the zombie-imp dependency as well manually for the few packages that need it?
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