Pytest Runtime Xfail

pytest-runtime-xfail is a pytest plugin that provides a `runtime_xfail` fixture, enabling tests to be marked as 'xfail' (expected to fail) dynamically during test execution. This is particularly useful for tests that might fail under specific, conditional circumstances (e.g., different operating systems, library versions, or data states) that cannot be determined at test collection time. The current version is 1.1.1, and its release cadence is generally low, with updates as needed for bug fixes or compatibility.