python-beartype fails to build with Python 3.14.0a1.

There's one ImportError and 26 failed tests:

ERROR beartype_test/a00_unit/a40_api/door/a90_func/test_door_func.py::test_door_is_subhint
FAILED beartype_test/a00_unit/a00_core/test_a90_typing.py::test_api_typing - ...
FAILED beartype_test/a00_unit/a20_util/hint/a00_pep/test_a00_utilpepget.py::test_get_hint_pep_sign
FAILED beartype_test/a00_unit/a20_util/hint/a00_pep/test_a90_utilpeptest.py::test_is_hint_pep_typing
FAILED beartype_test/a00_unit/a20_util/hint/a00_pep/test_a90_utilpeptest.py::test_is_hint_pep_type_typing
FAILED beartype_test/a00_unit/a20_util/hint/a00_pep/test_a90_utilpeptest.py::test_is_hint_pep
FAILED beartype_test/a00_unit/a20_util/hint/a00_pep/test_a90_utilpeptest.py::test_is_hint_pep_supported
FAILED beartype_test/a00_unit/a20_util/hint/a00_pep/test_a90_utilpeptest.py::test_die_if_hint_pep_unsupported
FAILED beartype_test/a00_unit/a20_util/hint/a90_core/test_utilhinttest.py::test_die_unless_hint
FAILED beartype_test/a00_unit/a20_util/hint/a90_core/test_utilhinttest.py::test_is_hint
FAILED beartype_test/a00_unit/a60_check/a90_door/test_checkdoor.py::test_door_is_bearable_warnings
FAILED beartype_test/a00_unit/a60_check/a90_door/test_checkdoor.py::test_door_die_if_unbearable
FAILED beartype_test/a00_unit/a60_check/a90_door/test_checkdoor.py::test_door_typehint_die_if_unbearable
FAILED beartype_test/a00_unit/a60_check/a90_door/test_checkdoor.py::test_door_is_bearable
FAILED beartype_test/a00_unit/a60_check/a90_door/test_checkdoor.py::test_door_typehint_is_bearable
FAILED beartype_test/a00_unit/a70_decor/a40_code/a00_module/test_decor_mypy.py::test_decor_mypy_notimplemented
FAILED beartype_test/a00_unit/a70_decor/a40_code/a80_nonpep/test_codenonpep.py::test_nonpep_pass_param_tuple
FAILED beartype_test/a00_unit/a70_decor/a40_code/a90_pep/pep484/test_pep484ref.py::test_pep484_ref_data
FAILED beartype_test/a00_unit/a70_decor/a40_code/a90_pep/pep484/test_pep484ref.py::test_pep484_ref_call_fail
FAILED beartype_test/a00_unit/a70_decor/a40_code/a90_pep/test_decorpep557.py::test_decor_pep577
FAILED beartype_test/a00_unit/a70_decor/a40_code/a90_pep/test_decorpep563.py::test_pep563_module
FAILED beartype_test/a00_unit/a70_decor/a40_code/a90_pep/test_decorpep563.py::test_pep563_hint_pep484_namedtuple
FAILED beartype_test/a00_unit/a70_decor/a40_code/a90_pep/test_decorpep591.py::test_decor_pep591
FAILED beartype_test/a00_unit/a70_decor/a60_main/test_beartype.py::test_beartype
FAILED beartype_test/a00_unit/a90_claw/a90_hook/test_claw_intraprocess.py::test_claw_intraprocess_beartype_package
FAILED beartype_test/a00_unit/a90_claw/a90_hook/test_claw_intraprocess.py::test_claw_intraprocess_beartype_packages
FAILED beartype_test/a00_unit/a90_claw/a90_hook/test_claw_intraprocess.py::test_claw_intraprocess_beartype_all
FAILED beartype_test/a00_unit/a90_claw/a90_hook/test_claw_intraprocess.py::test_claw_intraprocess_beartyping

According to https://docs.python.org/dev/whatsnew/3.14.html#typing

ByteString has been removed from both typing and collections.abc modules.
It had previously raised a DeprecationWarning since Python 3.12.


https://docs.python.org/3.14/whatsnew/3.14.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.14/fedora-rawhide-x86_64/08189186-python-beartype/

For all our attempts to build python-beartype with Python 3.14, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.14/package/python-beartype/

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.