Method __set__

Lib/enum.py:213–218

(self, instance, value)

                    ) from None

    def __set__(self, instance, value):
        if self.fset is not None:
            return self.fset(instance, value)
        raise AttributeError(
                "<enum %r> cannot set attribute %r" % (self.clsname, self.name)
                )

    def __delete__(self, instance):
        if self.fdel is not None: