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PYTHON-4492 Fallback to stdlib ssl when pyopenssl import fails with AttributeError #1669

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Merged
merged 1 commit into from
Jun 12, 2024
Merged

PYTHON-4492 Fallback to stdlib ssl when pyopenssl import fails with AttributeError #1669

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13 changes: 12 additions & 1 deletion pymongo/ssl_support.py
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
"""Support for SSL in PyMongo."""
from __future__ import annotations

import warnings
from typing import Optional

from pymongo.errors import ConfigurationError
Expand All @@ -23,7 +24,17 @@

try:
import pymongo.pyopenssl_context as _ssl
except ImportError:
except (ImportError, AttributeError) as exc:
if isinstance(exc, AttributeError):
warnings.warn(
"Failed to use the installed version of PyOpenSSL. "
"Falling back to stdlib ssl, disabling OCSP support. "
"This is likely caused by incompatible versions "
"of PyOpenSSL < 23.2.0 and cryptography >= 42.0.0. "
"Try updating PyOpenSSL >= 23.2.0 to enable OCSP.",
UserWarning,
stacklevel=2,
)
try:
import pymongo.ssl_context as _ssl # type: ignore[no-redef]
except ImportError:
Expand Down