ocrmypdf fails to build with Python 3.14.0a6. _________________________________ test_semfree _________________________________ [gw2] linux -- Python 3.14.0 /usr/bin/python3 resources = PosixPath('/builddir/build/BUILD/ocrmypdf-16.7.0-build/ocrmypdf-16.7.0/tests/resources') outpdf = PosixPath('/tmp/pytest-of-mockbuild/pytest-0/popen-gw2/test_semfree0/out.pdf') @pytest.mark.skipif(not is_linux(), reason='semfree plugin only works on Linux') def test_semfree(resources, outpdf): exitcode = run_ocrmypdf_api( resources / 'multipage.pdf', outpdf, '--skip-text', '--skip-big', '2', '--plugin', 'ocrmypdf.extra_plugins.semfree', '--plugin', 'tests/plugins/tesseract_noop.py', ) > assert exitcode in (ExitCode.ok, ExitCode.pdfa_conversion_failed) E assert <ExitCode.other_error: 15> in (<ExitCode.ok: 0>, <ExitCode.pdfa_conversion_failed: 10>) tests/test_semfree.py:26: AssertionError ------------------------------ Captured log call ------------------------------- WARNING ocrmypdf._pipeline:_pipeline.py:374 page too big, skipping OCR (81.0 MPixels > 2.0 MPixels --skip-big) WARNING ocrmypdf._pipeline:_pipeline.py:374 page too big, skipping OCR (2.0 MPixels > 2.0 MPixels --skip-big) WARNING ocrmypdf._metadata:_metadata.py:63 Some input metadata could not be copied because it is not permitted in PDF/A. You may wish to examine the output PDF's XMP metadata. ERROR ocrmypdf._pipelines._common:_common.py:296 An exception occurred while executing the pipeline Traceback (most recent call last): File "/builddir/build/BUILD/ocrmypdf-16.7.0-build/BUILDROOT/usr/lib/python3.14/site-packages/ocrmypdf/_pipelines/_common.py", line 261, in cli_exception_handler return fn(options, plugin_manager) File "/builddir/build/BUILD/ocrmypdf-16.7.0-build/BUILDROOT/usr/lib/python3.14/site-packages/ocrmypdf/_pipelines/ocr.py", line 181, in _run_pipeline optimize_messages = exec_concurrent(context, executor) File "/builddir/build/BUILD/ocrmypdf-16.7.0-build/BUILDROOT/usr/lib/python3.14/site-packages/ocrmypdf/_pipelines/ocr.py", line 145, in exec_concurrent pdf, messages = postprocess(pdf, context, executor) ~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^ File "/builddir/build/BUILD/ocrmypdf-16.7.0-build/BUILDROOT/usr/lib/python3.14/site-packages/ocrmypdf/_pipelines/_common.py", line 460, in postprocess return optimize_pdf(pdf_out, context, executor) File "/builddir/build/BUILD/ocrmypdf-16.7.0-build/BUILDROOT/usr/lib/python3.14/site-packages/ocrmypdf/_pipeline.py", line 984, in optimize_pdf output_pdf, messages = context.plugin_manager.hook.optimize_pdf( ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ input_pdf=input_file, ^^^^^^^^^^^^^^^^^^^^^ ...<3 lines>... linearize=should_linearize(input_file, context), ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ) ^ File "/usr/lib/python3.14/site-packages/pluggy/_hooks.py", line 513, in __call__ return self._hookexec(self.name, self._hookimpls.copy(), kwargs, firstresult) ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3.14/site-packages/pluggy/_manager.py", line 120, in _hookexec return self._inner_hookexec(hook_name, methods, kwargs, firstresult) ~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib/python3.14/site-packages/pluggy/_callers.py", line 139, in _multicall raise exception.with_traceback(exception.__traceback__) File "/usr/lib/python3.14/site-packages/pluggy/_callers.py", line 103, in _multicall res = hook_impl.function(*args) File "/builddir/build/BUILD/ocrmypdf-16.7.0-build/BUILDROOT/usr/lib/python3.14/site-packages/ocrmypdf/builtin_plugins/optimize.py", line 145, in optimize_pdf result_path = optimize(input_pdf, output_pdf, context, save_settings, executor) File "/builddir/build/BUILD/ocrmypdf-16.7.0-build/BUILDROOT/usr/lib/python3.14/site-packages/ocrmypdf/optimize.py", line 705, in optimize deflate_jpegs(pdf, root, options, executor) ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/builddir/build/BUILD/ocrmypdf-16.7.0-build/BUILDROOT/usr/lib/python3.14/site-packages/ocrmypdf/optimize.py", line 575, in deflate_jpegs executor( ~~~~~~~~^ use_threads=True, # We're sharing the pdf directly, must use threads ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ...<9 lines>... task_finished=finish, ^^^^^^^^^^^^^^^^^^^^^ ) ^ File "/builddir/build/BUILD/ocrmypdf-16.7.0-build/BUILDROOT/usr/lib/python3.14/site-packages/ocrmypdf/_concurrent.py", line 78, in __call__ self._execute( ~~~~~~~~~~~~~^ use_threads=use_threads, ^^^^^^^^^^^^^^^^^^^^^^^^ ...<5 lines>... task_finished=task_finished, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ) ^ File "/builddir/build/BUILD/ocrmypdf-16.7.0-build/BUILDROOT/usr/lib/python3.14/site-packages/ocrmypdf/extra_plugins/semfree.py", line 157, in _execute process.start() ~~~~~~~~~~~~~^^ File "/usr/lib64/python3.14/multiprocessing/process.py", line 121, in start self._popen = self._Popen(self) ~~~~~~~~~~~^^^^^^ File "/usr/lib64/python3.14/multiprocessing/context.py", line 224, in _Popen return _default_context.get_context().Process._Popen(process_obj) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^ File "/usr/lib64/python3.14/multiprocessing/context.py", line 300, in _Popen return Popen(process_obj) File "/usr/lib64/python3.14/multiprocessing/popen_forkserver.py", line 35, in __init__ super().__init__(process_obj) ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^ File "/usr/lib64/python3.14/multiprocessing/popen_fork.py", line 20, in __init__ self._launch(process_obj) ~~~~~~~~~~~~^^^^^^^^^^^^^ File "/usr/lib64/python3.14/multiprocessing/popen_forkserver.py", line 47, in _launch reduction.dump(process_obj, buf) ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^ File "/usr/lib64/python3.14/multiprocessing/reduction.py", line 60, in dump ForkingPickler(file, protocol).dump(obj) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^ TypeError: cannot pickle 'pikepdf._core.Pdf' object when serializing tuple item 0 when serializing list item 0 when serializing tuple item 4 when serializing dict item '_args' when serializing multiprocessing.context.Process state when serializing multiprocessing.context.Process object https://docs.python.org/3.14/whatsnew/3.14.html The default start method changed from fork to forkserver on platforms other than macOS and Windows where it was already spawn. If the threading incompatible fork method is required, you must explicitly request it via a context from multiprocessing.get_context() (preferred) or change the default via multiprocessing.set_start_method(). See forkserver restrictions for information and differences with the fork method and how this change may affect existing code with mutable global shared variables and/or shared objects that can not be automatically pickled. For the build logs, see: https://copr-be.cloud.fedoraproject.org/results/@python/python3.14/fedora-rawhide-x86_64/08848362-ocrmypdf/ For all our attempts to build ocrmypdf with Python 3.14, see: https://copr.fedorainfracloud.org/coprs/g/python/python3.14/package/ocrmypdf/ 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 3.14: https://copr.fedorainfracloud.org/coprs/g/python/python3.14/ Let us know here if you have any questions. Python 3.14 is planned to be included in Fedora 43. To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.14. 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.
*** Bug 2371757 has been marked as a duplicate of this bug. ***
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