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Python Enum

From WikiOD

Remarks[edit | edit source]

Enums were added to Python in version 3.4 by PEP 435.

Creating an enum (Python 2.4 through 3.3)[edit | edit source]

Enums have been backported from Python 3.4 to Python 2.4 through Python 3.3. You can get this the enum34 backport from PyPI.

pip install enum34

Creation of an enum is identical to how it works in Python 3.4+

from enum import Enum

class Color(Enum):
    red = 1
    green = 2
    blue = 3

print(Color.red)  # Color.red    
print(Color(1))  # Color.red    
print(Color['red'])  # Color.red

Iteration[edit | edit source]

Enums are iterable:

class Color(Enum):
    red = 1
    green = 2
    blue = 3

[c for c in Color]  # [<Color.red: 1>, <Color.green: 2>, <Color.blue: 3>]

Credit:Stack_Overflow_Documentation