1. PEP8 - Holy grail của Python style. Dùng linter extension cho editor. PEP8 Guide
2. Project Structure
README.rst LICENSE setup.py requirements.txt sample/__init__.py sample/core.py sample/helpers.py docs/conf.py docs/index.rst tests/test_basic.py tests/test_advanced.py
3. Doctests - Test embedded trong docstring, cho phép TDD.
4. PyPi + pip - Dùng package manager thay vì tự build.
5. Pythonic Code - Tuân thủ idioms: list comprehension, context manager, duck typing... Idiomatic Python