Python enum with a function for lookup by name.

smart_enum.py

import enum

class SmartEnum(enum.Enum):
    """
    An enum with a classmethod `of` that parses a string of the member's name.
    """

    @classmethod
    def of(cls, v):
        """
        Returns the member of this enum class from a string with the member's name,
        case-insentive and stripping whitespace.
        Will return ``v`` if ``v`` is already an instance of this class.
        """
        if isinstance(v, cls):
            return v
        elif isinstance(v, str):
            if v in cls:
                return cls[v.upper().strip()]
            else:
                # in case the names are lowercase
                # noinspection PyTypeChecker
                for e in cls:
                    if e.name.lower().strip() == v:
                        return e
                raise LookupError("{} not found in {}".format(v, str(cls)))
        else:
            raise TypeError(str(type(v)))