Iron Law

CHOOSE FRAMEWORK AND ASYNC STRATEGY BEFORE WRITING A SINGLE LINE — defaulting to "just use FastAPI" without context analysis produces the wrong architecture for the wrong problem

Python Patterns

Python development principles and decision-making for the 2025 ecosystem. Learn to THINK about context, not memorize patterns.

When to Use

Use this skill when making Python architecture decisions, choosing frameworks, designing async patterns, or structuring Python projects. Load BEFORE python-dev when the approach is unclear.

1. Framework Selection

Decision Tree