Google Python Style Guide

Official Google Python coding standards extending PEP 8.

Golden Rules

1. Follow PEP 8 as baseline — Google's guide extends it
2. Use type annotations for all public functions and methods
3. 4-space indentation — no tabs
4. Maximum line length: 80 characters
5. Docstrings mandatory for all public modules, functions, classes, methods
6. Prefer comprehensions over map()/filter()
7. Use f-strings for string formatting (Python 3.6+)

Quick Reference

Naming Conventions