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
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15
Index

Code Optimization

Code optimization is the process of making an application work more efficiently, usually without modifying its functionality and accuracy. Code optimization is usually concerned with the speed of processing (CPU time optimization), but can also be used to minimize the usage of different resources, such as memory, disk space, or network bandwidth.

In the previous chapter, we learned about various observability techniques that can be used to identify performance hotspots in applications. Logging, metric monitoring, and tracing can be used to create a general performance overview and prioritize optimization efforts. Moreover, operations teams often use custom alerts of performance and resource usage metrics or log messages related to operation timeouts to determine components that require immediate action.

But even the best logging, metrics, and tracing systems will give you only a rough overview of the performance problem. If you decide to fix it, you will...