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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?
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Syntax : enum.auto() Automatically assign the integer value to the values of enum class attributes. Example #1 : In this example we can see that by using enum. auto() method, we are able to assign the numerical values automatically to the class attributes by using this method.
Enums can't have multiple value per name.
Numeric enums are number-based enums i.e. they store string values as numbers. Enums are always assigned numeric values when they are stored. The first value always takes the numeric value of 0, while the other values in the enum are incremented by 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 Did you try print(len(Mood)) ?
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