[2021/07/15 23:57:40.337] ERROR: Failure: ImportError (cannot import name '_TxnState' from 'synchro' (/data/mci/eb739280245a00d7b8911c9e443753d1/src/synchro/__init__.py))
 [2021/07/15 23:57:40.337] ----------------------------------------------------------------------
 [2021/07/15 23:57:40.337] Traceback (most recent call last):
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/lib/python3.7/site-packages/nose/failure.py", line 39, in runTest
 [2021/07/15 23:57:40.337]     raise self.exc_val.with_traceback(self.tb)
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/lib/python3.7/site-packages/nose/loader.py", line 418, in loadTestsFromName
 [2021/07/15 23:57:40.337]     addr.filename, addr.module)
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/lib/python3.7/site-packages/nose/importer.py", line 47, in importFromPath
 [2021/07/15 23:57:40.337]     return self.importFromDir(dir_path, fqname)
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/lib/python3.7/site-packages/nose/importer.py", line 94, in importFromDir
 [2021/07/15 23:57:40.337]     mod = load_module(part_fqname, fh, filename, desc)
 [2021/07/15 23:57:40.337]   File "/opt/python/3.7/lib/python3.7/imp.py", line 234, in load_module
 [2021/07/15 23:57:40.337]     return load_source(name, filename, file)
 [2021/07/15 23:57:40.337]   File "/opt/python/3.7/lib/python3.7/imp.py", line 171, in load_source
 [2021/07/15 23:57:40.337]     module = _load(spec)
 [2021/07/15 23:57:40.337]   File "<frozen importlib._bootstrap>", line 696, in _load
 [2021/07/15 23:57:40.337]   File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
 [2021/07/15 23:57:40.337]   File "<frozen importlib._bootstrap_external>", line 728, in exec_module
 [2021/07/15 23:57:40.337]   File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/tmp/mongo-python-driver/test/test_change_stream.py", line 48, in <module>
 [2021/07/15 23:57:40.337]     from test.unified_format import generate_test_classes
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/tmp/mongo-python-driver/test/unified_format.py", line 37, in <module>
 [2021/07/15 23:57:40.337]     from pymongo.client_session import ClientSession, TransactionOptions, _TxnState
 [2021/07/15 23:57:40.337] ImportError: cannot import name '_TxnState' from 'synchro' (/data/mci/eb739280245a00d7b8911c9e443753d1/src/synchro/__init__.py)
 [2021/07/15 23:57:40.337] ======================================================================
 [2021/07/15 23:57:40.337] ERROR: test_hashable (test.test_client.TestClient)
 [2021/07/15 23:57:40.337] ----------------------------------------------------------------------
 [2021/07/15 23:57:40.337] Traceback (most recent call last):
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/tmp/mongo-python-driver/test/test_client.py", line 668, in test_hashable
 [2021/07/15 23:57:40.337]     self.assertIn(c, {client_context.client})
 [2021/07/15 23:57:40.337] TypeError: unhashable type: 'MongoClient'
 [2021/07/15 23:57:40.337] ======================================================================
 [2021/07/15 23:57:40.337] ERROR: test_hashable (test.test_collection.TestCollection)
 [2021/07/15 23:57:40.337] ----------------------------------------------------------------------
 [2021/07/15 23:57:40.337] Traceback (most recent call last):
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/tmp/mongo-python-driver/test/test_collection.py", line 158, in test_hashable
 [2021/07/15 23:57:40.337]     self.assertIn(self.db.test.mike, {self.db["test.mike"]})
 [2021/07/15 23:57:40.337] TypeError: unhashable type: 'Collection'
...
 [2021/07/15 23:57:40.337] ERROR: test_hashable (test.test_database.TestDatabase)
 [2021/07/15 23:57:40.337] ----------------------------------------------------------------------
 [2021/07/15 23:57:40.337] Traceback (most recent call last):
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/tmp/mongo-python-driver/test/test_database.py", line 131, in test_hashable
 [2021/07/15 23:57:40.337]     self.assertIn(self.client.test, {Database(self.client, "test")})
 [2021/07/15 23:57:40.337] TypeError: unhashable type: 'Database'
 [2021/07/15 23:57:40.337] ======================================================================
 [2021/07/15 23:57:40.337] ERROR: test suite for <class 'test.test_encryption.TestBsonSizeBatches'>
 [2021/07/15 23:57:40.337] ----------------------------------------------------------------------
 [2021/07/15 23:57:40.337] Traceback (most recent call last):
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/lib/python3.7/site-packages/nose/suite.py", line 210, in run
 [2021/07/15 23:57:40.337]     self.setUp()
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/lib/python3.7/site-packages/nose/suite.py", line 293, in setUp
 [2021/07/15 23:57:40.337]     self.setupContext(ancestor)
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/lib/python3.7/site-packages/nose/suite.py", line 316, in setupContext
 [2021/07/15 23:57:40.337]     try_run(context, names)
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/lib/python3.7/site-packages/nose/util.py", line 471, in try_run
 [2021/07/15 23:57:40.337]     return func()
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/tmp/mongo-python-driver/test/test_encryption.py", line 1043, in setUpClass
 [2021/07/15 23:57:40.337]     auto_encryption_opts=opts, event_listeners=[cls.listener])
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/tmp/mongo-python-driver/test/utils.py", line 536, in rs_or_single_client
 [2021/07/15 23:57:40.337]     return _mongo_client(h, p, **kwargs)
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/tmp/mongo-python-driver/test/utils.py", line 497, in _mongo_client
 [2021/07/15 23:57:40.337]     **client_options)
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/synchro/__init__.py", line 353, in __init__
 [2021/07/15 23:57:40.337]     self.delegate = self.__delegate_class__(host, port, *args, **kwargs)
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/motor/core.py", line 158, in __init__
 [2021/07/15 23:57:40.337]     delegate = self.__delegate_class__(*args, **kwargs)
 [2021/07/15 23:57:40.337]   File "/data/mci/eb739280245a00d7b8911c9e443753d1/src/.tox/synchro37/tmp/mongo-python-driver/pymongo/mongo_client.py", line 783, in __init__
 [2021/07/15 23:57:40.337]     from pymongo.encryption import _Encrypter
 [2021/07/15 23:57:40.338] ImportError: cannot import name '_Encrypter' from 'synchro' (/data/mci/eb739280245a00d7b8911c9e443753d1/src/synchro/__init__.py)