Python Async/Await Patterns and Best Practices

Purpose

This skill provides comprehensive guidance on Python asynchronous programming patterns for reviewing and writing async code. It covers async/await syntax, best practices, common patterns, anti-patterns, and framework-specific considerations.

Use this skill when:

• Reviewing async Python code
• Writing new async functions or services
• Refactoring sync code to async
• Troubleshooting async performance issues
• Evaluating async library usage
• Implementing async endpoints in web frameworks

Context

Asynchronous programming in Python enables efficient I/O-bound operations by allowing the event loop to switch between tasks while waiting for I/O operations to complete. However, async code introduces complexity and has specific patterns and pitfalls that must be understood for correct implementation.