Async Python in Action

Write Faster, Smarter, and More Efficient Python Code.

Modern applications demand speed-and Python can deliver. Async Python in Action is your hands-on guide to mastering asynchronous programming, concurrency, and multithreading with Python, using real-world examples that show you exactly when and how to use each technique.

This book breaks down complex topics like asyncio, event loops, threading, and multiprocessing into clear, actionable lessons. You'll learn how to write non-blocking code that scales, how to avoid common concurrency pitfalls, and how to apply these tools to real-life scenarios like web scraping, file I/O, API calls, and server applications.

Whether you're building high-performance apps or just want to make your Python programs more efficient, this book gives you the skills and confidence to write clean, fast, and concurrent code that gets the job done.

? What You'll Learn: The difference between concurrency, parallelism, threading, and async

How to use Python's built-in asyncio, threading, and multiprocessing modules

Writing real asynchronous functions using async and await

Handling tasks like I/O, networking, and APIs without blocking

Building async projects: file processors, async web clients, data pipelines, and more

Debugging, testing, and structuring async Python code

Perfect For: Intermediate Python developers

Backend engineers and data professionals

Anyone writing performance-sensitive Python code

Developers transitioning from synchronous to asynchronous thinking