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Mastering Python Networking - Fourth Edition

You're reading from  Mastering Python Networking - Fourth Edition

Product type Book
Published in Jan 2023
Publisher Packt
ISBN-13 9781803234618
Pages 594 pages
Edition 4th Edition
Languages
Concepts
Author (1):
Eric Chou Eric Chou
Profile icon Eric Chou

Table of Contents (19) Chapters

Preface 1. Review of TCP/IP Protocol Suite and Python 2. Low-Level Network Device Interactions 3. APIs and Intent-Driven Networking 4. The Python Automation Framework – Ansible 5. Docker Containers for Network Engineers 6. Network Security with Python 7. Network Monitoring with Python – Part 1 8. Network Monitoring with Python – Part 2 9. Building Network Web Services with Python 10. Introduction to Async IO 11. AWS Cloud Networking 12. Azure Cloud Networking 13. Network Data Analysis with Elastic Stack 14. Working with Git 15. Continuous Integration with GitLab 16. Test-Driven Development for Networks 17. Other Books You May Enjoy
18. Index

Python Asyncio Module

We can think of the asyncio module as Python’s way of allowing us to write code to run tasks concurrently. It uses the newly introduced async and await keywords. It can help us improve performance for many operations that might be IO bound, such as web servers, databases, and of course, communication toward devices over the network. The asyncio module is the foundation of popular new frameworks, such as FastAPI (https://fastapi.tiangolo.com/).

However, it is important to point out that asyncio is neither multi-processing nor multi-threaded. It is designed to be single-threaded with a single process. Python asyncio uses cooperative multiprocessing to give the feeling of concurrency.

Unlike threading, Python controls the process from end to end instead of passing the threading process to the operating system. This lets Python know when the task is started and completed, thus coordinating between them. When we can ‘pause’ part of the code while...

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