def test_bindError(self):
        server = Server()
        d = server.startedDeferred = defer.Deferred()
        port = reactor.listenUDP(0, server, interface='127.0.0.1')

        def cbStarted(ignored):
            self.assertEqual(port.getHost(), server.transport.getHost())
            server2 = Server()
            self.assertRaises(
                error.CannotListenError,
                reactor.listenUDP, port.getHost().port, server2,
                interface='127.0.0.1')
        d.addCallback(cbStarted)

        def cbFinished(ignored):
            return port.stopListening()
        d.addCallback(cbFinished)
        return d
Take all subvars and connect them directly to
dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/test/test_udp.py/UDPTestCase.test_bindError--crossover with--dataset/ETHPy150Open OpenMDAO/OpenMDAO-Framework/openmdao.main/src/openmdao/main/depgraph.py/DependencyGraph._connect_subvars_to_comps