python enum examples

Enumerations, or enums, are a powerful and convenient feature in Python that allow you to define symbolic names for a set of unique values. Enums provide a more readable and maintainable alternative to using plain integers or strings to represent different states or options in your code.
In this tutorial, we will explore the basics of Python enums, their advantages, and demonstrate various use cases with code examples.
To use enums in Python, you need to import the Enum module from the enum package. Let's start by importing it:
To create an enum, you can subclass the Enum class. Each enum member is defined as a class attribute.
Here, Color is an enum with three members: RED, GREEN, and BLUE, each associated with a unique integer value.
You can access enum members using dot notation:
You can iterate over all the members of an enum:
Enums support equality and identity comparisons:
Enum members can automatically assign values based on their order of definition:
Here, the auto() function is used to automatically assign unique values to each member.
Enum members can be associated with string values:
You can attach additional attributes to enum members:
Here, each enum member is associated with a tuple of values representing mass and radius.
You can define methods within an enum:
Python enums are a versatile tool for creating symbolic names for values. They enhance code readability, maintainability, and make it easier to work with a predefined set of options or states.
This tutorial covered the basics of creating enums, performing operations on them, and using advanced features like assigning values and attributes to enum members. Incorporating enums into your Python projects can lead to more expressive and robust code.
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