Hướng dẫn nested enum python

it may be a bit late and the one who asked the question is no longer necessary, but I leave it here in case someone wants to take a look at it, and even if it has already been validated as one, although the same comment that it is not completely complete .

But I have been thinking about it and in the end I have solved it by looking at the same documentation XD.

You cannot extend classes of Enums, but you can extend methods, I have followed this way and the only thing I have done has been to override the new and init methods, the use case can be modified, this is only to nest enumerators.

from enum import Enum

class SuperNestedEnum(Enum):
    def __new__(cls, *args):
        obj = object.__new__(cls)
        value = None
        # Normal Enumerator definition
        if len(args) == 1:
            value = args[0]

        # Have a tuple of values, first de value and next the nested enum (I will set in __init__ method)
        if len(args) == 2:
            value = args[0]

        if value:
            obj._value_ = value

        return obj

    def __init__(self, name, nested=None):
        # At this point you can set any attribute what you want
        if nested:
            # Check if is an Enumerator you can comment this if. if you want another object
            if isinstance(nested, EnumMeta):
                for enm in nested:
                    self.__setattr__(enm.name, enm)


class Homework(Enum):
    Task = "5"

class Subjects(SuperNestedEnum):
    Maths = "maths"
    English = "english"
    Physics = "nested", Homework

class School(SuperNestedEnum):
    Name = "2"
    Subjects = "subjects", Subjects

Ignore the use case because it doesn't make sense, it's just an example

>>> School.Name


>>> School.Subjects


>>> School.Subjects.value
'subjects'

>>> School.Subjects.Maths


>>> School.Subjects.Physics.value
'nested'

>>> School.Subjects.Physics.Task


>>> School.Subjects.Physics.Task.value
'5'

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