// Concepts

Enum

In Python, an Enum (short for enumeration) is a class used to define a set of named, immutable constants, introduced in Python 3.4 as part of the enum module. Enums enhance code readability and maintainability by replacing unclear, hardcoded values (also known as "magic numbers") with meaningful names. For example, using SpeedLimit.HIGHWAY instead of the number 80 in a speed-checking program.

To create an enum, you define a class that inherits from the Enum class. Each member of the enum is defined as a class attribute with an assigned value. The Enum class provides built-in methods like .name (returns the name of the enum member) and .value (returns the value assigned to the member). Enums are useful for representing a fixed set of related constants, such as days of the week or traffic light states. They can be used in loops and dictionaries, and they support both identity (is) and equality (==) comparisons.

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last updated Oct 7, 2022

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Modernizing Chess Logic: A Deep Dive into Python Refactoring and Clean Design
Most chess implementations fail because they treat pieces as complex classes rather than simple data. By collapsing inheritance and leveraging Python's Protocol classes, you can eliminate Law of Demeter violations and fix the 'nested if' hell that plagues game logic. Stop recreating GUI elements on every frame and start using data-driven design to build a cleaner, faster board.
Oct 7, 2022
5 min read

// Often Mentioned Together

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last updated Oct 7, 2022

Modernizing Chess Logic: A Deep Dive into Python Refactoring and Clean Design