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Expert Python Programming – Fourth Edition

You're reading from   Expert Python Programming – Fourth Edition Master Python by learning the best coding practices and advanced programming concepts

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Product type Paperback
Published in May 2021
Publisher Packt
ISBN-13 9781801071109
Length 630 pages
Edition 4th Edition
Languages
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Authors (3):
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Michał Jaworski Michał Jaworski
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Michał Jaworski
Tarek Ziade Tarek Ziade
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Tarek Ziadé Tarek Ziadé
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Tarek Ziadé
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Table of Contents (16) Chapters Close

Preface 1. Current Status of Python 2. Modern Python Development Environments 3. New Things in Python 4. Python in Comparison with Other Languages 5. Interfaces, Patterns, and Modularity FREE CHAPTER 6. Concurrency 7. Event-Driven Programming 8. Elements of Metaprogramming 9. Bridging Python with C and C++ 10. Testing and Quality Automation 11. Packaging and Distributing Python Code 12. Observing Application Behavior and Performance 13. Code Optimization 14. Other Books You May Enjoy
15. Index

Observing Application Behavior and Performance

With every new version of our software, we feel that release thrill. Did we manage to finally fix all those pesky problems we've been working on lately? Will it work or will it break? Will users be satisfied, or will they complain about new bugs or performance issues?

We usually employ various quality assurance techniques and automated testing methodologies to increase our confidence in software quality and validity. But these techniques and methodologies just increase our expectation that things will run smoothly with each new release. But how can you make sure that an application is running smoothly for your users? Or conversely, how can you know if something is going wrong?

In this chapter we will discuss the topic of application observability. Observability is a property of a software system that allows you to explain and understand the application's state based on its outputs. If you know the state of the system...

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