Book Image

Modern Python Standard Library Cookbook

By : Alessandro Molina
Book Image

Modern Python Standard Library Cookbook

By: Alessandro Molina

Overview of this book

The Python 3 Standard Library is a vast array of modules that you can use for developing various kinds of applications. It contains an exhaustive list of libraries, and this book will help you choose the best one to address specific programming problems in Python. The Modern Python Standard Library Cookbook begins with recipes on containers and data structures and guides you in performing effective text management in Python. You will find Python recipes for command-line operations, networking, filesystems and directories, and concurrent execution. You will learn about Python security essentials in Python and get to grips with various development tools for debugging, benchmarking, inspection, error reporting, and tracing. The book includes recipes to help you create graphical user interfaces for your application. You will learn to work with multimedia components and perform mathematical operations on date and time. The recipes will also show you how to deploy different searching and sorting algorithms on your data. By the end of the book, you will have acquired the skills needed to write clean code in Python and develop applications that meet your needs.
Table of Contents (21 chapters)
Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
Index

Sockets


Sockets are one of the lowest-level concepts that you can use to write networking applications. It means managing the whole connection ourselves, usually when relying on sockets directly, you would have to handle connection requests, accept them, and then start a thread or a loop to handle the subsequent commands or data that is sent through the newly created connection channel.

This is a flow that nearly all applications that rely on networking have to implement, everything you call a server usually has as a foundation in the aforementioned loop.

The Python standard library provides a great foundation to avoid having to manually rewrite that flow every time you have to work on a networking-based application. We can use the socketserver module and let it handle the connection loop for us, while we focus on just implementing the application layer protocol and handling messages.

How to do it...

You need to perform the following steps for this recipe:

  1. Mixing the TCPServer and ThreadingMixIn...