Accessing Topology

class topo_reader(DynamicPolicy):
    """
    Policy that stores the topology
    """
    def __init__(self):
        self.network = None
        super(topo_reader,self).__init__()

    def set_network(self, network):
        self.network = network

    def read_network(self):
        return self.network

    def __repr__(self):
        return "topo_reader"