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Type:
Bug
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Resolution: Cannot Reproduce
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Priority:
Minor - P4
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None
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Affects Version/s: 4.0.1, 3.12.3
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Component/s: Command Ops
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None
Trace
Trace was obtained on version 3.12.3:
builtins.KeyError: 'cursor' Traceback (most recent call last): File "/opt/venv/lib/python3.7/site-packages/ddtrace/contrib/pymongo/patch.py", line 84, in traced_get_socket yield sock_info File "/opt/venv/lib/python3.7/site-packages/ddtrace/contrib/pymongo/client.py", line 156, in get_socket yield s File "/opt/venv/lib/python3.7/site-packages/pymongo/mongo_client.py", line 1321, in _get_socket yield sock_info File "/opt/venv/lib/python3.7/site-packages/pymongo/mongo_client.py", line 1374, in _secondaryok_for_server yield sock_info, secondary_ok File "/opt/venv/lib/python3.7/site-packages/pymongo/mongo_client.py", line 1525, in _retryable_read return func(session, server, sock_info, secondary_ok) File "/opt/venv/lib/python3.7/site-packages/pymongo/database.py", line 846, in _cmd **kwargs) File "/opt/venv/lib/python3.7/site-packages/pymongo/database.py", line 794, in _list_collections session=tmp_session)["cursor"] KeyError: 'cursor'
Last line context:
cmd = SON([("listCollections", 1), ("cursor", {})]) cmd.update(kwargs) with self.__client._tmp_session(session, close=False) as tmp_session: cursor = self._command( sock_info, cmd, secondary_okay, read_preference=read_preference, session=tmp_session)["cursor"]
The listCollections API doc (https://docs.mongodb.com/manual/reference/command/listCollections/) states that the listCollections command does not accept a "cursor" argument, and if I understood well, that's what cmd tries to do here.
Python Version: 3.7.8
Pymongo Version: 3.12.3
Operating System: Ubuntu 20.04