Filter unclosed database warning from sqlite3

[cjmayo]

The Python 3.13 sqlite3 module added a new warning which is being issued during testing.
I do not know if there is an actual fix.

[samuelhwilliams]

Have you looked into anything that would fix them properly before we just ignore them?

I feel like we or our tests must be doing something wrong here.

[samuelhwilliams]

I've seemingly fixed all but one of these errors with this changeset: samuelhwilliams/flask-admin@ce6cca5, see test run

The one outstanding failure seems to jump between different unit tests every now and again, which suggests something a little flaky/unstable. Haven't yet narrowed down what this is. I suspect our tests are not well isolated and/or our conftest setup is doing something wrong.

[cjmayo]

I've seemingly fixed all but one of these errors with this changeset: samuelhwilliams/flask-admin@ce6cca5, see test run

That's great. I could see something needed to go after the yield but didn't know what.

The one outstanding failure seems to jump between different unit tests every now and again, which suggests something a little flaky/unstable. Haven't yet narrowed down what this is. I suspect our tests are not well isolated and/or our conftest setup is doing something wrong.

Looks like it is something that can't just be ignored:

pytest.PytestUnraisableExceptionWarning: Exception ignored in: <sqlite3.Connection object at 0x7f33924c0220>

Traceback (most recent call last):
  File "/home/runner/work/flask-admin/flask-admin/.tox/py3.13/lib/python3.13/site-packages/sqlalchemy/event/base.py", line 148, in __init__
    self._empty_listeners = self._empty_listener_reg[instance_cls]
                            ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^
  File "/opt/hostedtoolcache/Python/3.13.0/x64/lib/python3.13/weakref.py", line 415, in __getitem__
    return self.data[ref(key)]
           ~~~~~~~~~^^^^^^^^^^
KeyError: <weakref at 0x7f33931bcc20; to 'type' at 0x56002fd34b70 (Session)>

https://github.com/pallets-eco/flask-admin/actions/runs/11543216111/job/32127332191?pr=2542#step:9:6504