Название: asyncio Recipes: A Problem-Solution Approach Автор: Mohamed Mustapha Tahrioui
Издательство: Apress
Год: 2019
Страниц: 330
Язык: английский
Формат: pdf (true), azw3, epub
Размер: 10.1 MB
Get the most out of asyncio and find solutions to your most troubling Python programming problems. This book offers a pragmatic collection of recipes by going beyond online resources and docs to provide guidance on using this complex library. As such, you’ll see how to improve application performance and run computationally intensive programs faster.
What Is Asyncio? The cooperative concurrency framework Asyncio was written to address the need for fast single-threaded programs that don't waste CPU time on I/O bound tasks. Its primitives like coroutines and event loops allow developers to execute code only when it’s not waiting for I/O and to yield control back for other tasks.
Asyncio Recipes starts with examples illustrating the primitives that come with the asyncio library, and explains how to determine if Asyncio is the right choice for your application. It shows how to use asyncio to yield performance gains without multiple threads, and identifies common mistakes and how to prevent them. Later chapters cover error-handling, testing, and debugging. By the end of this book, you`ll understand how asyncio runs behind the scenes, and be confident enough to contribute to asyncio-first projects.
What You Will Learn:
Discover quirky APIs such as the event loop policies
Write asyncio code with native coroutines
Use the ast module to find legacy asyncio code
Work with contextvars
See what a async context manager is and why a lot of asyncio APIs use them
Who This Book Is For:
Experienced Python developers or hobbyists who want to understand asyncio and speed up their applications by adding concurrency to their toolkit.
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