Book Image

Expert Python Programming - Fourth Edition

By : Michał Jaworski, Tarek Ziadé
Book Image

Expert Python Programming - Fourth Edition

By: Michał Jaworski, Tarek Ziadé

Overview of this book

This new edition of Expert Python Programming provides you with a thorough understanding of the process of building and maintaining Python apps. Complete with best practices, useful tools, and standards implemented by professional Python developers, this fourth edition has been extensively updated. Throughout this book, you’ll get acquainted with the latest Python improvements, syntax elements, and interesting tools to boost your development efficiency. The initial few chapters will allow experienced programmers coming from different languages to transition to the Python ecosystem. You will explore common software design patterns and various programming methodologies, such as event-driven programming, concurrency, and metaprogramming. You will also go through complex code examples and try to solve meaningful problems by bridging Python with C and C++, writing extensions that benefit from the strengths of multiple languages. Finally, you will understand the complete lifetime of any application after it goes live, including packaging and testing automation. By the end of this book, you will have gained actionable Python programming insights that will help you effectively solve challenging problems.
Table of Contents (16 chapters)
14
Other Books You May Enjoy
15
Index

Capturing errors and logs

Standard output is the cornerstone of observability. That's because one of the simplest things every application can do is to read information from standard input and print information to standard output. That's why the first thing every programmer learns is usually how to print "Hello world!"

Despite the fact that standard input and output are so important, users of modern software rarely know anything about their existence. Desktop applications usually aren't invoked from the terminal and users often interact with them using graphical interfaces instead.

Web-based software usually runs on remote servers and users interact with it using web browsers or custom client software. In both cases, standard input and output are hidden from the user.

But although users don't see standard output, that doesn't mean it does not exist. Standard output is often used for logging detailed information about internal application...