Python repo 起手 1. Pyenv: 唔同Python versions 轉黎轉去 2. Poetry: 潮過pip, conda 嘅package manager 3. Black: auto format (cli / vs code) 4. Isort: Import 整理 5. Ruff: Linter 避免寫爛code 6. Pytest: Testing 7. Coverage: Test Coverage