Summary
- Comprehensive guide to asyncio, concurrent patterns, and async/await for building high-performance, non-blocking Python applications.
- Covers core concepts (event loops, coroutines, tasks, futures) and 10+ fundamental and advanced patterns including concurrent execution, error handling, timeouts, context managers, and producer-consumer workflows Includes real-world examples for web scraping with aiohttp, async database operations, and WebSocket servers Provides performance best practices: connection pooling, batching, and proper handling of blocking code with asyncio.to_thread() and run_in_executor() Highlights common pitfalls (forgetting await, blocking the event loop, mixing sync/async) and testing strategies with pytest-asyncio