pycairo fails to build with Python 3.10.0a1.
This report is automated and not very verbose, but we'll try to get back here with details.
For the build logs, see:
For all our attempts to build pycairo with Python 3.10, see:
Testing and mass rebuild of packages is happening in copr. You can follow these instructions to test locally in mock if your package builds with Python 3.10:
Let us know here if you have any questions.
Python 3.10 will be included in Fedora 35. To make that update smoother, we're building Fedora packages with early pre-releases of Python 3.10.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires), so if this package is required a lot, it's important for us to get it fixed soon.
We'd appreciate help from the people who know this package best, but if you don't want to work on this now, let us know so we can try to work around it on our side.
As of Python3.10 PyObject_AsWriteBuffer will be removed see: https://docs.python.org/3.10/whatsnew/3.10.html#id4
Traceback (most recent call last):
File "/builddir/build/BUILD/pycairo-1.18.2/setup.py", line 601, in <module>
File "/builddir/build/BUILD/pycairo-1.18.2/setup.py", line 564, in main
File "/usr/lib/python3.10/site-packages/setuptools/__init__.py", line 153, in setup
File "/usr/lib64/python3.10/distutils/core.py", line 148, in setup
File "/usr/lib64/python3.10/distutils/dist.py", line 966, in run_commands
File "/usr/lib64/python3.10/distutils/dist.py", line 985, in run_command
File "/builddir/build/BUILD/pycairo-1.18.2/setup.py", line 259, in run
File "/builddir/build/BUILD/pycairo-1.18.2/setup.py", line 193, in run
File "/builddir/build/BUILD/pycairo-1.18.2/cairo/__init__.py", line 1, in <module>
from ._cairo import * # noqa: F401,F403
ImportError: /builddir/build/BUILD/pycairo-1.18.2/cairo/_cairo.cpython-310-x86_64-linux-gnu.so: undefined symbol: PyObject_AsWriteBuffer
PyObject_AsCharBuffer(), PyObject_AsReadBuffer(), PyObject_CheckReadBuffer(), and PyObject_AsWriteBuffer() are removed. Please migrate to new buffer protocol; PyObject_GetBuffer() and PyBuffer_Release().
Somewhat related, we're stuck on an older pycairo release right now because having to support python2.7 for gimp.
(In reply to Kalev Lember from comment #2)
> Somewhat related, we're stuck on an older pycairo release right now because
> having to support python2.7 for gimp.
Have you considered building Python 2 pycairo from a dedicated component?
I think we may have to do that, yes. There's not a whole lot going on in cairo land so it's been fine so far :)
https://copr.fedorainfracloud.org/coprs/g/python/python3.10/build/1744609/ succeeded in the copr now that we updated pycairo to 1.20.0 so I think we can close this now.