class EnumerableBase(object):
    def __init__(self, name, **kargs):
        self.__dict__.update(kargs)
        self.name = name
        self.register(self)

    def __repr__(self):
        return '<%s(%r)>' % (self.__class__.__name__, self.name)

    @classmethod
    def register(cls, e):
        cls.values.append(e)
        cls.name2value[e.name] = e

def Enumerable(clsname):

    return type(clsname, (EnumerableBase,), dict(
        values = [],
        name2value = {},
    ))


if __name__ == '__main__':
    # usage example

    AgentModeEnum = Enumerable('AgentModeEnum')

    WorldEnum = Enumerable('WorldEnum')
    FLAT = WorldEnum('flat')
    ROUND = WorldEnum('round')

    class Agent:
        WAIT = AgentModeEnum('wait')
        WALK = AgentModeEnum('walk')
        RUN = AgentModeEnum('run')
        THINK = AgentModeEnum('think')

    print AgentModeEnum.values, AgentModeEnum.name2value.get('run')
    print WorldEnum.values