# Pastebin ivxpiRQh
neutron_taas.tests.unit.db.test_taas_db.TaaSDbTestCase.test_tap_flow_list
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Captured traceback:
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    Traceback (most recent call last):
      File "neutron_taas/tests/unit/db/test_taas_db.py", line 38, in setUp
        self.plugin = importutils.import_object(DB_PLUGIN_KLAAS)
      File "/usr/lib/python2.7/dist-packages/oslo_utils/importutils.py", line 44, in import_object
        return import_class(import_str)(*args, **kwargs)
      File "/usr/lib/python2.7/dist-packages/neutron/db/db_base_plugin_v2.py", line 137, in __init__
        self.nova_notifier = nova.Notifier.get_instance()
      File "/usr/lib/python2.7/dist-packages/neutron/notifiers/nova.py", line 53, in get_instance
        cls._instance = cls()
      File "/usr/lib/python2.7/dist-packages/neutron/notifiers/nova.py", line 66, in __init__
        only_contrib=True)
      File "/usr/lib/python2.7/dist-packages/novaclient/client.py", line 191, in discover_extensions
        return [ext.Extension(name, module) for name, module in chain]
      File "/usr/lib/python2.7/dist-packages/novaclient/client.py", line 214, in _discover_via_contrib_path
        module = module_loader.load_module(module_name)
      File "/usr/lib/python2.7/pkgutil.py", line 246, in load_module
        mod = imp.load_module(fullname, self.file, self.filename, self.etc)
      File "/usr/lib/python2.7/dist-packages/novaclient/v2/contrib/tenant_networks.py", line 19, in <module>
        from novaclient.v2 import shell
      File "/usr/lib/python2.7/dist-packages/novaclient/v2/shell.py", line 47, in <module>
        from novaclient import shell
      File "/usr/lib/python2.7/dist-packages/novaclient/shell.py", line 38, in <module>
        import keyring
      File "/usr/lib/python2.7/dist-packages/keyring/__init__.py", line 6, in <module>
        from .core import (set_keyring, get_keyring, set_password, get_password,
      File "/usr/lib/python2.7/dist-packages/keyring/core.py", line 149, in <module>
        init_backend()
      File "/usr/lib/python2.7/dist-packages/keyring/core.py", line 65, in init_backend
        keyrings = filter(limit, backend.get_all_keyring())
      File "/usr/lib/python2.7/dist-packages/keyring/util/__init__.py", line 20, in wrapper
        func.always_returns = func(*args, **kwargs)
      File "/usr/lib/python2.7/dist-packages/keyring/backend.py", line 191, in get_all_keyring
        exceptions=TypeError))
      File "/usr/lib/python2.7/dist-packages/keyring/util/__init__.py", line 29, in suppress_exceptions
        for callable in callables:
      File "/usr/lib/python2.7/dist-packages/keyring/backend.py", line 183, in is_class_viable
        keyring_cls.priority
      File "/usr/lib/python2.7/dist-packages/keyring/util/properties.py", line 22, in __get__
        return self.fget.__get__(None, owner)()
      File "/usr/lib/python2.7/dist-packages/keyring/backends/SecretService.py", line 29, in priority
        bus = secretstorage.dbus_init()
      File "/usr/lib/python2.7/dist-packages/secretstorage/__init__.py", line 47, in dbus_init
        return dbus.SessionBus()
      File "/usr/lib/python2.7/dist-packages/dbus/_dbus.py", line 211, in __new__
        mainloop=mainloop)
      File "/usr/lib/python2.7/dist-packages/dbus/_dbus.py", line 100, in __new__
        bus = BusConnection.__new__(subclass, bus_type, mainloop=mainloop)
      File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 122, in __new__
        bus = cls._new_for_bus(address_or_type, mainloop=mainloop)
    dbus.exceptions.DBusException: org.freedesktop.DBus.Error.FileNotFound: Failed to connect to socket /run/user/1000/bus: No such file or directory