self = <swh.storage.tests.algos.test_dir_iterator.TestDirectoryIterator testMethod=test_dir_iterator_empty_dir> mock_get_dir = <MagicMock name='_get_dir' id='139985594057112'> def test_dir_iterator_empty_dir(self, mock_get_dir): dir_model = DirectoryModel() expected_paths_order = [] > self.check_iterated_paths(dir_model, expected_paths_order, mock_get_dir) .tox/py3/lib/python3.7/site-packages/swh/storage/tests/algos/test_dir_iterator.py:111: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .tox/py3/lib/python3.7/site-packages/swh/storage/tests/algos/test_dir_iterator.py:105: in check_iterated_paths paths_order = [e["path"] for e in dir_iterator(None, dir_model["target"])] .tox/py3/lib/python3.7/site-packages/swh/storage/tests/algos/test_dir_iterator.py:33: in __getitem__ return hash_to_bytes(directory_identifier(self)) .tox/py3/lib/python3.7/site-packages/swh/model/identifiers.py:52: in directory_identifier return hash_to_hex(model.Directory.from_dict(directory).id) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ cls = <class 'swh.model.model.Directory'> d = <swh.storage.tests.algos.test_dir_iterator.DirectoryModel object at 0x7f50e8619898> @classmethod def from_dict(cls, d): > d = d.copy() E AttributeError: 'DirectoryModel' object has no attribute 'copy' .tox/py3/lib/python3.7/site-packages/swh/model/model.py:706: AttributeError