— name: python-patterns description: Pythonic idioms, PEP 8 standards, type hints, and best practices for building robust, efficient, and maintainable Python applications. origin: ECC — # Python Development Patterns Idiomatic Python patterns and best practices for building robust, efficient, and maintainable applications. ## When to Activate – Writing new Python code – Reviewing Python code – Refactoring existing Python code – Designing Python packages/modules ## Core Principles ### 1. Readability Counts Python prioritizes readability. Code should be obvious and easy to understand. “`python # Good: Clear and readable def get_active_users(users: list[User]) -> list[User]: """ …