$ tox -e py314
py314: install_deps> python -I -m pip install -r dev-requirements.txt
.pkg: install_requires> python -I -m pip install flit_core
.pkg: _optional_hooks> python /usr/lib/python3.13/site-packages/pyproject_api/_backend.py True flit_core.buildapi
.pkg: get_requires_for_build_sdist> python /usr/lib/python3.13/site-packages/pyproject_api/_backend.py True flit_core.buildapi
.pkg: get_requires_for_build_wheel> python /usr/lib/python3.13/site-packages/pyproject_api/_backend.py True flit_core.buildapi
.pkg: prepare_metadata_for_build_wheel> python /usr/lib/python3.13/site-packages/pyproject_api/_backend.py True flit_core.buildapi
.pkg: build_sdist> python /usr/lib/python3.13/site-packages/pyproject_api/_backend.py True flit_core.buildapi
py314: install_package> python -I -m pip install --force-reinstall --no-deps /tmp/anyio/cloudpickle/.tox/.tmp/package/1/cloudpickle-3.2.0.dev0.tar.gz
py314: commands[0]> pytest -lv --maxfail=5
========================================================= test session starts =========================================================
platform linux -- Python 3.14.0b1, pytest-8.3.5, pluggy-1.5.0 -- /tmp/anyio/cloudpickle/.tox/py314/bin/python
cachedir: .tox/py314/.pytest_cache
rootdir: /tmp/anyio/cloudpickle
configfile: tox.ini
plugins: cov-6.1.1
collected 272 items                                                                                                                   

[…]
============================================================== FAILURES ===============================================================
_____________________________________ CloudPickleTest.test_locally_defined_class_with_type_hints ______________________________________

self = <tests.cloudpickle_test.CloudPickleTest testMethod=test_locally_defined_class_with_type_hints>

    def test_locally_defined_class_with_type_hints(self):
        with subprocess_worker(protocol=self.protocol) as worker:
            for type_ in _all_types_to_test():
    
                class MyClass:
                    def method(self, arg: type_) -> type_:
                        return arg
    
                MyClass.__annotations__ = {"attribute": type_}
    
                def check_annotations(obj, expected_type, expected_type_str):
                    assert obj.__annotations__["attribute"] == expected_type
                    assert obj.method.__annotations__["arg"] == expected_type
                    assert obj.method.__annotations__["return"] == expected_type
                    return "ok"
    
                obj = MyClass()
>               assert check_annotations(obj, type_, "type_") == "ok"

MyClass    = <class 'tests.cloudpickle_test.CloudPickleTest.test_locally_defined_class_with_type_hints.<locals>.MyClass'>
check_annotations = <function CloudPickleTest.test_locally_defined_class_with_type_hints.<locals>.check_annotations at 0x7f11d88b1bc0>
obj        = <tests.cloudpickle_test.CloudPickleTest.test_locally_defined_class_with_type_hints.<locals>.MyClass object at 0x7f11d8811010>
self       = <tests.cloudpickle_test.CloudPickleTest testMethod=test_locally_defined_class_with_type_hints>
type_      = <class 'tests.cloudpickle_test._all_types_to_test.<locals>.C'>
worker     = <tests.testutils._Worker object at 0x7f11d9076f10>

tests/cloudpickle_test.py:2667: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

obj = <tests.cloudpickle_test.CloudPickleTest.test_locally_defined_class_with_type_hints.<locals>.MyClass object at 0x7f11d8811010>
expected_type = <class 'tests.cloudpickle_test._all_types_to_test.<locals>.C'>, expected_type_str = 'type_'

    def check_annotations(obj, expected_type, expected_type_str):
>       assert obj.__annotations__["attribute"] == expected_type
E       AttributeError: 'MyClass' object has no attribute '__annotations__'. Did you mean: '__annotations_cache__'?

expected_type = <class 'tests.cloudpickle_test._all_types_to_test.<locals>.C'>
expected_type_str = 'type_'
obj        = <tests.cloudpickle_test.CloudPickleTest.test_locally_defined_class_with_type_hints.<locals>.MyClass object at 0x7f11d8811010>

tests/cloudpickle_test.py:2661: AttributeError
_________________________________ Protocol2CloudPickleTest.test_locally_defined_class_with_type_hints _________________________________

self = <tests.cloudpickle_test.Protocol2CloudPickleTest testMethod=test_locally_defined_class_with_type_hints>

    def test_locally_defined_class_with_type_hints(self):
        with subprocess_worker(protocol=self.protocol) as worker:
            for type_ in _all_types_to_test():
    
                class MyClass:
                    def method(self, arg: type_) -> type_:
                        return arg
    
                MyClass.__annotations__ = {"attribute": type_}
    
                def check_annotations(obj, expected_type, expected_type_str):
                    assert obj.__annotations__["attribute"] == expected_type
                    assert obj.method.__annotations__["arg"] == expected_type
                    assert obj.method.__annotations__["return"] == expected_type
                    return "ok"
    
                obj = MyClass()
>               assert check_annotations(obj, type_, "type_") == "ok"

MyClass    = <class 'tests.cloudpickle_test.CloudPickleTest.test_locally_defined_class_with_type_hints.<locals>.MyClass'>
check_annotations = <function CloudPickleTest.test_locally_defined_class_with_type_hints.<locals>.check_annotations at 0x7f11d6f47530>
obj        = <tests.cloudpickle_test.CloudPickleTest.test_locally_defined_class_with_type_hints.<locals>.MyClass object at 0x7f11d7222cf0>
self       = <tests.cloudpickle_test.Protocol2CloudPickleTest testMethod=test_locally_defined_class_with_type_hints>
type_      = <class 'tests.cloudpickle_test._all_types_to_test.<locals>.C'>
worker     = <tests.testutils._Worker object at 0x7f11d6f46a40>

tests/cloudpickle_test.py:2667: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

obj = <tests.cloudpickle_test.CloudPickleTest.test_locally_defined_class_with_type_hints.<locals>.MyClass object at 0x7f11d7222cf0>
expected_type = <class 'tests.cloudpickle_test._all_types_to_test.<locals>.C'>, expected_type_str = 'type_'

    def check_annotations(obj, expected_type, expected_type_str):
>       assert obj.__annotations__["attribute"] == expected_type
E       AttributeError: 'MyClass' object has no attribute '__annotations__'. Did you mean: '__annotations_cache__'?

expected_type = <class 'tests.cloudpickle_test._all_types_to_test.<locals>.C'>
expected_type_str = 'type_'
obj        = <tests.cloudpickle_test.CloudPickleTest.test_locally_defined_class_with_type_hints.<locals>.MyClass object at 0x7f11d7222cf0>

tests/cloudpickle_test.py:2661: AttributeError
========================================================== warnings summary ===========================================================
tests/cloudpickle_test.py::CloudPickleTest::test_tornado_coroutine
  /tmp/anyio/cloudpickle/.tox/py314/lib/python3.14/site-packages/tornado/platform/asyncio.py:389: DeprecationWarning: 'asyncio.DefaultEventLoopPolicy' is deprecated and slated for removal in Python 3.16
    _BasePolicy = asyncio.DefaultEventLoopPolicy

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
======================================================= short test summary info =======================================================
FAILED tests/cloudpickle_test.py::CloudPickleTest::test_locally_defined_class_with_type_hints - AttributeError: 'MyClass' object has no attribute '__annotations__'. Did you mean: '__annotations_cache__'?
FAILED tests/cloudpickle_test.py::Protocol2CloudPickleTest::test_locally_defined_class_with_type_hints - AttributeError: 'MyClass' object has no attribute '__annotations__'. Did you mean: '__annotations_cache__'?
================================== 2 failed, 253 passed, 15 skipped, 2 xfailed, 1 warning in 18.38s ===================================
py314: exit 1 (18.71 seconds) /tmp/anyio/cloudpickle> pytest -lv --maxfail=5 pid=411471
.pkg: _exit> python /usr/lib/python3.13/site-packages/pyproject_api/_backend.py True flit_core.buildapi
  py314: FAIL code 1 (31.15=setup[12.43]+cmd[18.71] seconds)
  evaluation failed :( (31.23 seconds)