Is there a dedicated way to get the number of items in a python `Enum`?

Question

Say I have such a python Enum class:

from enum import Enum

class Mood(Enum):
    red = 0
    green = 1
    blue = 2

Is there a natural way to get the total number of items in Mood? (like without having to iterate over it, or to add an extra n item, or an extra n classproperty, etc.)

Does the enum module provide such a functionality?

Answer 1

Yes. Enums have several extra abilities that normal classes do not:

class Example(Enum):     this = 1     that = 2     dupe = 1     those = 3  print(len(Example))  # duplicates are not counted # 3  print(list(Example)) # [<Example.this: 1>, <Example.that: 2>, <Example.those: 3>]  print(Example['this']) # Example.this  print(Example['dupe']) # Example.this  print(Example(1)) # Example.this 

Answer 2

Did you try print(len(Mood)) ?