def getNetwork(self, network_id):
        try:
            return self.networks[network_id][0]
        except KeyError:
            raise error.TopologyError((network_id) % 'No network with id %s')
dataset/ETHPy150Open NORDUnet/opennsa/opennsa/topology/nml.py/Topology.getNetwork/swapped operands of `%`