What are some examples of enumerations in Python?

What are some examples of enumerations in Python?

In Python, enumerations are created using the Enum class from the enum module. For example, you can define days of the week like this:

from enum import Enum

class Day(Enum):
    MONDAY = 1
    TUESDAY = 2
    WEDNESDAY = 3
    THURSDAY = 4
    FRIDAY = 5
    SATURDAY = 6
    SUNDAY = 7

This allows you to use meaningful names instead of numbers.

Can you show me how to use this enumeration in a function?

Sure! Here's a function that takes a Day enumeration and returns a message:

def is_weekend(day):
    if day in (Day.SATURDAY, Day.SUNDAY):
        return "It's the weekend!"
    else:
        return "It's a weekday."

You can call it like this:

print(is_weekend(Day.SATURDAY))  # Output: It's the weekend!"

What if I want to iterate over the enumeration values?

You can easily iterate over the enumeration values using a for loop:

for day in Day:
    print(day)

This will print all the days defined in the Day enumeration.