Python Development

Functional-first, production-first Python 3.14+ with uv, type safety, immutability, and small composable modules.

Activation Triggers

• .py files, pyproject.toml, uv commands, Python packaging
• pip, pip3, poetry, venv, virtualenv, inline script metadata
• Python, typing, asyncio, pytest, mypy, ruff, dataclasses, itertools, functools
• Async I/O, data pipelines, CLI tooling, validation, parsing, test strategy

Workflow

1. MODEL    -> types, invariants, boundaries
2. COMPOSE  -> pure functions, pipelines, small modules
3. VALIDATE -> parse at edges, return errors early
4. TEST     -> pytest, fixtures, async tests
5. HARDEN   -> ruff + format + mypy + regression tests