Enum of enums in Python?

Question

Is it possible to have an enum of enums in Python? For example, I\'d like to have

enumA
    enumB
        elementA
        elementB
    enumC
        elementC
          


        

Answer 1

Solution based on attrs. This also allows to implement attributes validators and other goodies of attrs:

import enum

import attr


class CoilsTypes(enum.Enum):
    heating: str = "heating"


class FansTypes(enum.Enum):
    plug: str = "plug"


class HrsTypes(enum.Enum):
    plate: str = "plate"
    rotory_wheel: str = "rotory wheel"


class FiltersTypes(enum.Enum):
    bag: str = "bag"
    pleated: str = "pleated"


@attr.dataclass(frozen=True)
class ComponentTypes:
    coils: CoilsTypes = CoilsTypes
    fans: FansTypes = FansTypes
    hrs: HrsTypes = HrsTypes
    filter: FiltersTypes = FiltersTypes


cmp = ComponentTypes()
res = cmp.hrs.plate