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Mastering Python Design Patterns - Third Edition

You're reading from  Mastering Python Design Patterns - Third Edition

Product type Book
Published in May 2024
Publisher Packt
ISBN-13 9781837639618
Pages 296 pages
Edition 3rd Edition
Languages
Authors (2):
Kamon Ayeva Kamon Ayeva
Profile icon Kamon Ayeva
Sakis Kasampalis Sakis Kasampalis
Profile icon Sakis Kasampalis
View More author details
Toc

Table of Contents (17) Chapters close

Preface 1. Part 1: Start with Principles
2. Chapter 1: Foundational Design Principles 3. Chapter 2: SOLID Principles 4. Part 2: From the Gang of Four
5. Chapter 3: Creational Design Patterns 6. Chapter 4: Structural Design Patterns 7. Chapter 5: Behavioral Design Patterns 8. Part 3: Beyond the Gang of Four
9. Chapter 6: Architectural Design Patterns 10. Chapter 7: Concurrency and Asynchronous Patterns 11. Chapter 8: Performance Patterns 12. Chapter 9: Distributed Systems Patterns 13. Chapter 10: Patterns for Testing 14. Chapter 11: Python Anti-Patterns 15. Index 16. Other Books You May Enjoy

Following the Encapsulate What Varies principle

One of the most common challenges in software development is dealing with change. Requirements evolve, technologies advance, and user needs also change. Therefore, it is crucial to write code that can adapt without causing a ripple effect of modifications throughout your program or application. This is where the principle of Encapsulate What Varies comes into play.

What does it mean?

The idea behind this principle is straightforward: isolate the parts of your code that are most likely to change and encapsulate them. By doing so, you create a protective barrier that shields the rest of your code from these elements that are subject to change. This encapsulation allows you to make changes to one part of your system without affecting others.

Benefits

Encapsulating what varies provides several benefits, mainly the following:

  • Ease of maintenance: When changes are needed, you must only modify the encapsulated parts, reducing...
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