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PYTHON-5297 [v4.12] AsyncMongoClient connection error causes UnboundLocalError #2277

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merged 2 commits into from
Apr 10, 2025
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PYTHON-5297 [v4.12] AsyncMongoClient connection error causes UnboundLocalError #2277

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PYTHON-5297 - AsyncMongoClient connection error causes UnboundLocalEr…
NoahStapp Apr 10, 2025
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blink1073 Apr 10, 2025
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6 changes: 3 additions & 3 deletions doc/changelog.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -6,16 +6,16 @@ Changes in Version 4.12.1 (XXXX/XX/XX)

Version 4.12.1 is a bug fix release.

- Fixed a bug that could raise ``UnboundLocalError`` when creating asynchronous connections over SSL.
- Fixed a bug causing SRV hostname validation to fail when resolver and resolved hostnames are identical with three domain levels.

Issues Resolved
...............

See the `PyMongo 4.12 release notes in JIRA`_ for the list of resolved issues
See the `PyMongo 4.12.1 release notes in JIRA`_ for the list of resolved issues
in this release.

.. _PyMongo 4.12 release notes in JIRA: https://jira.mongodb.org/secure/ReleaseNote.jspa?projectId=10004&version=41916
.. _PYTHON-5288: https://jira.mongodb.org/browse/PYTHON-5288
.. _PyMongo 4.12.1 release notes in JIRA: https://jira.mongodb.org/secure/ReleaseNote.jspa?projectId=10004&version=43094

Changes in Version 4.12.0 (2025/04/08)
--------------------------------------
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2 changes: 0 additions & 2 deletions pymongo/pool_shared.py
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Expand Up @@ -346,12 +346,10 @@ async def _configured_protocol_interface(
ssl=ssl_context,
)
except _CertificateError:
transport.abort()
# Raise _CertificateError directly like we do after match_hostname
# below.
raise
except (OSError, SSLError) as exc:
transport.abort()
# We raise AutoReconnect for transient and permanent SSL handshake
# failures alike. Permanent handshake failures, like protocol
# mismatch, will be turned into ServerSelectionTimeoutErrors later.
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