ray-project--ray/.claude/rules/python-guidelines.md

paths

paths
**/*.py

• Place type annotations in function signatures so tooling (mypy, pyright) can use them directly
• Use @pytest.mark.parametrize to cover multiple cases in a single test function, reducing duplication
• Extract common test setup/teardown into reusable helper functions
• Use @classmethod setUpClass/tearDownClass to reuse Ray clusters across test suites (avoids ~4.4s startup per test)