python

Guide for writing clean, efficient, idiomatic Python 3.11+ code. Enforces type hints, Pydantic v2 for APIs, comprehensions over loops, EAFP error handling. Triggers on "python", "pythonic", ".py file", "write python", "python script", "python function", "python class", "pydantic", "fastapi", "pytest", "type hint", "typing", "dataclass", "async def", "asyncio", "aiohttp", "comprehension", "generator", "decorator", "context manager", "with statement", "exception handling", "try except", "raise", "logging python", "argparse", "click", "typer", "__init__", "__main__", "import", "from import", "python module", "python package", "requirements.txt", "pyproject.toml", "ruff", "mypy", "black", "isort", "python testing", "fixture", "parametrize", "edit .py", "modify .py", "update .py", "change .py", "fix .py", "refactor .py", "edit python", "modify python", "update python", "change python", "fix python code". PROACTIVE: MUST invoke BEFORE using Write OR Edit on ANY .py file.