What are some use cases for enumerations in Python?

What are some use cases for enumerations in Python?

Enumerations in Python are useful for defining a set of named values. They can be used in scenarios like representing states, categories, or options.

Can you give me an example of how to implement an enumeration?

Sure! You can use the Enum class from the enum module. For example:

from enum import Enum

class Color(Enum):
    RED = 1
    GREEN = 2
    BLUE = 3

This defines an enumeration for colors.

How can I use enumerations in a switch-case like structure?

You can use enumerations in a dictionary to simulate a switch-case. For example:

def color_action(color):
    actions = {
        Color.RED: "Stop",
        Color.GREEN: "Go",
        Color.BLUE: "Wait"
    }
    return actions.get(color, "Invalid color")

Are there any performance benefits to using enumerations?

Yes, using enumerations can improve code readability and maintainability. They also provide a way to avoid magic numbers, making your code less error-prone.