Python Refactoring: Turn Magic Numbers into Constants for Readability

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In today's video, we delve into the topic of "magic numbers" and discuss why it's crucial to avoid them in your code.

I'll walk you through a hands-on Python example, demonstrating how magic numbers can reduce code readability. We'll then refactor the code using constants. An added advantage of this approach is the ability to reuse these constants across different modules.

Code Repository:

Complete Refactoring Playlist:

Chapters:
00:00 Introduction
00:38 Why Comments Can Be a Code Smell
01:14 Refactoring: Replace Magic Numbers with Constants
01:38 The Role of Asserts in Refactoring
02:18 How Using Constants Enhances Readability
03:13 Diving into a More Complex Refactoring Example
04:00 The Reduced Need for Comments After Refactoring
04:10 Conclusion and Wrap-up

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[SherryBhutia]

This is a great way to start the Weekend! Thanks for this!

[vorea]

Making repeated magic numbers (like 50 in the last example) into constants also help reduce data rot and increase maintainability, in that example you reduce the number of bugs that may happen if you ever change "50" to any other number because you only change one number instead of 2+.