swh_storage = <swh.storage.in_memory.InMemoryStorage object at 0x7fb3f717e860> sample_data = <swh.storage.tests.storage_data.StorageData object at 0x7fb3f27326d8> def test_snapshot_id_get_from_revision(swh_storage, sample_data): origin = sample_data.origin swh_storage.origin_add([origin]) date_visit2 = now() visit1, visit2 = sample_data.origin_visits[:2] assert visit1.origin == origin.url ov1, ov2 = swh_storage.origin_visit_add([visit1, visit2]) revision1, revision2, revision3 = sample_data.revisions[:3] > swh_storage.revision_add([revision1, revision2]) .tox/py3/lib/python3.7/site-packages/swh/storage/tests/algos/test_snapshot.py:173: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .tox/py3/lib/python3.7/site-packages/swh/storage/cassandra/storage.py:484: in revision_add revisions = list(set(revisions)) <attrs generated hash swh.model.model.Revision>:15: in __hash__ self.extra_headers, _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ self = ImmutableDict({'checksums': {'sha1': 'tarball-sha1', 'sha256': 'tarball-sha256'}, 'signed-off-by': 'some-dude'}) def __hash__(self): > return hash(tuple(sorted(self.data))) E TypeError: unhashable type: 'dict' .tox/py3/lib/python3.7/site-packages/swh/model/collections.py:49: TypeError