Python Access nested enum value

Enums, or enumerations, are a powerful and expressive feature in Python that allow you to define a set of named values representing distinct members of a group. Nested enums provide a way to organize related constants within a hierarchy. In this tutorial, we'll explore how to access nested enum values in Python.
First, ensure you have the enum module imported. If you are using Python 3.4 or later, the enum module is included in the standard library.
Let's create a simple example of a nested enum. In this case, we'll define a Color enum with nested enums for Primary and Secondary colors.
Now, let's see how we can access the nested enum values. To access a nested enum value, use the dot notation (.) to traverse through the hierarchy.
In the example above, we access the RED value in the Primary enum and the PURPLE value in the Secondary enum.
It's important to note that enums do not allow duplicate values within the same enum class. However, different enum classes (even if they are nested) can have the same values. In our example, both Color.Primary and Color.Secondary have a GREEN value.
Let's create a function that takes a color as an argument and performs some action based on the color.
In this example, the process_color function checks whether the provided color is a primary or secondary color and performs different actions accordingly.
That's it! You've learned how to define and access nested enum values in Python. Enums can be a useful tool for improving code readability and maintainability by providing a clear and structured way to represent sets of related constants.
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