mark pytest_examples as thread unsafe

Author: davidhewitt

tests/test_docstrings.py

@@ -14,6 +14,7 @@ def find_examples(*_directories):
 
 @pytest.mark.skipif(CodeExample is None or sys.platform not in {'linux', 'darwin'}, reason='Only on linux and macos')
 @pytest.mark.parametrize('example', find_examples('python/pydantic_core/core_schema.py'), ids=str)
+@pytest.mark.thread_unsafe  # TODO investigate why pytest_examples seems to be thread unsafe here
 def test_docstrings(example: CodeExample, eval_example: EvalExample):
     eval_example.set_config(quotes='single')
 
@@ -27,6 +28,7 @@ def test_docstrings(example: CodeExample, eval_example: EvalExample):
 
 @pytest.mark.skipif(CodeExample is None or sys.platform not in {'linux', 'darwin'}, reason='Only on linux and macos')
 @pytest.mark.parametrize('example', find_examples('README.md'), ids=str)
+@pytest.mark.thread_unsafe  # TODO investigate why pytest_examples seems to be thread unsafe here
 def test_readme(example: CodeExample, eval_example: EvalExample):
     eval_example.set_config(line_length=100, quotes='single')
     if eval_example.update_examples: