There is a bug in our pyopenssl code which leads to certification verification errors being obfuscated by a "module service_identity has no attribute SICertificateError" attribute error.

Reported here: https://github.com/mongodb/mongo-python-driver/pull/2382

When there is a mistake in the certificates configuration, PyMongo would give the following error:

pymongo.errors.ServerSelectionTimeoutError: module service_identity has no attribute SICertificateError, Timeout: 30s, Topology Description: <…>
Because the except block expected non-existing errors, the error gets transformed to "module … has no attribute …". The errors in the service_identity have never had the SI prefix:
https://github.com/pyca/service-identity/blob/18.1.0/src/service_identity/exceptions.py
It looks like the errors were imported with an alias before, but this aliasing was (only partially) removed when rewriting to lazy imports in this commit:
42a08c4#diff-b277a2f4cfbb5decab333d0b90a08a4ad64b91fb1691ed8412b15949d1aaceee
The lazy imports were removed again in this commit, but the error remained:
49987e6#diff-b277a2f4cfbb5decab333d0b90a08a4ad64b91fb1691ed8412b15949d1aaceee
After changing the expected errors manually in my virtual environment, the error I received earlier turned into this, so I could continue debugging my certificates configuration:

pymongo.errors.ServerSelectionTimeoutError: […]: ("VerificationError(errors=[IPAddressMismatch(…)])",) (configured timeouts: socketTimeoutMS: 20000.0ms, connectTimeoutMS: 20000.0ms), Timeout: 30s, Topology Description: <…>
Most likely, the # type: ignore[misc] comment can now also be removed (but I have not set up this repository for development on my machine, so I'll let the automated checks be the judge of that).