swh_scheduler_config = {'db': "dbname=scheduler user=postgres host=127.0.0.1 port=32432 options=''"} def test_get_lister(swh_scheduler_config): """Instantiating a supported lister should be ok """ db_url = init_db().url() for lister_name in SUPPORTED_LISTERS: lst = get_lister( lister_name, db_url, scheduler={"cls": "local", **swh_scheduler_config}, > **lister_args.get(lister_name, {}), ) .tox/py3/lib/python3.7/site-packages/swh/lister/tests/test_cli.py:39: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .tox/py3/lib/python3.7/site-packages/swh/lister/__init__.py:57: in get_lister return lister_cls.from_config(**conf) .tox/py3/lib/python3.7/site-packages/swh/lister/pattern.py:249: in from_config return cls(scheduler=scheduler_instance, **config) .tox/py3/lib/python3.7/site-packages/swh/lister/cgit/lister.py:57: in __init__ self.session.mount(self.url, HTTPAdapter(max_retries=3)) .tox/py3/lib/python3.7/site-packages/requests/sessions.py:755: in mount keys_to_move = [k for k in self.adapters if len(k) < len(prefix)] _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .0 = <odict_iterator object at 0x7fe748370e08> > keys_to_move = [k for k in self.adapters if len(k) < len(prefix)] E TypeError: object of type 'NoneType' has no len() .tox/py3/lib/python3.7/site-packages/requests/sessions.py:755: TypeError