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In Python, constants are often used to represent fixed values that do not change during the execution of a program. Grouping these constants can improve code organization, enhance readability, and make maintenance easier. In this tutorial, we'll explore different ways to group constants in Python with code examples.
One common practice is to define constants in a separate module. This allows you to logically group related constants together. Let's create a module named constants.py:
Now, in your main script or module, you can import these constants:
You can use classes or named tuples to group related constants. This approach is especially useful when constants are associated with a specific concept or entity:
Grouping constants in a dictionary can be beneficial when you want to provide a clear mapping between constant names and their values:
Enums are a powerful way to represent groups of named constants. They provide meaningful names for values and help avoid magic numbers in the code:
Choose the grouping method that best fits your project's structure and requirements. Consistency in naming and organization will contribute to better code maintainability and readability.
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