What are enumerations in Python and how do I use them?

What are enumerations in Python and how do I use them?

Enumerations, or enums, are a way to define a set of named values in Python. They help make your code more readable and maintainable.

Can you show me an example of how to create an enumeration?

Sure! You can create an enumeration using the Enum class from the enum module. Here's a simple example:

from enum import Enum

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

This defines an enumeration called Color with three members.

How do I access the values of the enumeration?

You can access the values of the enumeration by using the member names. For example:

print(Color.RED)
print(Color.GREEN.value)

This will output Color.RED and 2 respectively.

Can I iterate over the members of an enumeration?

Yes, you can iterate over the members of an enumeration using a simple for loop:

for color in Color:
    print(color)

This will print all the members of the Color enumeration.