request = <SubRequest 'graph_client' for <Function test_stats[remote]>> @pytest.fixture(scope="module", params=["remote", "naive"]) def graph_client(request): if request.param == "remote": server = GraphServerProcess() server.start() if isinstance(server.result, Exception): > raise server.result E AttributeError: 'GraphServerProcess' object has no attribute 'get_rpc_url' .tox/py3/lib/python3.7/site-packages/swh/graph/tests/conftest.py:72: AttributeError