Book Image

Mastering Python 2E - Second Edition

By : Rick van Hattem
5 (1)
Book Image

Mastering Python 2E - Second Edition

5 (1)
By: Rick van Hattem

Overview of this book

Even if you find writing Python code easy, writing code that is efficient, maintainable, and reusable is not so straightforward. Many of Python’s capabilities are underutilized even by more experienced programmers. Mastering Python, Second Edition, is an authoritative guide to understanding advanced Python programming so you can write the highest quality code. This new edition has been extensively revised and updated with exercises, four new chapters and updates up to Python 3.10. Revisit important basics, including Pythonic style and syntax and functional programming. Avoid common mistakes made by programmers of all experience levels. Make smart decisions about the best testing and debugging tools to use, optimize your code’s performance across multiple machines and Python versions, and deploy often-forgotten Python features to your advantage. Get fully up to speed with asyncio and stretch the language even further by accessing C functions with simple Python calls. Finally, turn your new-and-improved code into packages and share them with the wider Python community. If you are a Python programmer wanting to improve your code quality and readability, this Python book will make you confident in writing high-quality scripts and taking on bigger challenges
Table of Contents (21 chapters)
19
Other Books You May Enjoy
20
Index

Asynchronous examples

One of the most common reasons for stalling scripts and applications is the usage of remote resources, where remote means any interaction with the network, filesystem, or other resources. With asyncio, at least a large portion of that is easily fixable. Fetching multiple remote resources and serving to multiple clients is quite a bit easier and more lightweight than it used to be. While both multithreading and multiprocessing can be used for these cases as well, asyncio is a much lighter alternative that is actually easier to manage in many cases.

The next few sections show a few examples of how to implement certain operations using asyncio.

Before you start implementing your own code and copying the examples here, I would recommend doing a quick search on the web for whichever library you are looking for and seeing if there is an asyncio version available.

In general, looking for “asyncio <protocol>” will give you great results...