class Enum (tuple):

    def __getitem__(self, key):
        super(Enum, self).__getitem__(key)

    def __init__(self, *iterable):
        id = 1
        self.vals = {}
        keys = []
        for it in iterable:
            for val in it:
                self.vals[id]=val
                keys.append(id)
                id <<= 1

        super(Enum, self).__init__(keys)

    def __str__(self):
        return super(Enum, self).__str__()

def main():
    e = Enum(['first','dfdf','rt'])
    print e[0]
    print type(e)
    print e