flask-sqlalchemy

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Various tests are failing on Python 3.13.0, with the following pattern:

_____________________________ test_paginate[Model] _____________________________

cls = <class '_pytest.runner.CallInfo'>
func = <function call_and_report.<locals>.<lambda> at 0x7ffff425ed40>
when = 'call'
reraise = (<class '_pytest.outcomes.Exit'>, <class 'KeyboardInterrupt'>)

    @classmethod
    def from_call(
        cls,
        func: Callable[[], TResult],
        when: Literal["collect", "setup", "call", "teardown"],
        reraise: type[BaseException] | tuple[type[BaseException], ...] | None = None,
    ) -> CallInfo[TResult]:
        """Call func, wrapping the result in a CallInfo.
    
        :param func:
            The function to call. Called without arguments.
        :type func: Callable[[], _pytest.runner.TResult]
        :param when:
            The phase in which the function is called.
        :param reraise:
            Exception or exceptions that shall propagate if raised by the
            function, instead of being wrapped in the CallInfo.
        """
        excinfo = None
        start = timing.time()
        precise_start = timing.perf_counter()
        try:
>           result: TResult | None = func()

/nix/store/6wq270gc19f8p07jy7892r05avgwb3xz-python3.13-pytest-8.3.3/lib/python3.13/site-packages/_pytest/runner.py:341: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
/nix/store/6wq270gc19f8p07jy7892r05avgwb3xz-python3.13-pytest-8.3.3/lib/python3.13/site-packages/_pytest/runner.py:242: in <lambda>
    lambda: runtest_hook(item=item, **kwds), when=when, reraise=reraise
/nix/store/w91wlq864lgwj9r938gmf8czk5cwlqjy-python3.13-pluggy-1.5.0/lib/python3.13/site-packages/pluggy/_hooks.py:513: in __call__
    return self._hookexec(self.name, self._hookimpls.copy(), kwargs, firstresult)
/nix/store/w91wlq864lgwj9r938gmf8czk5cwlqjy-python3.13-pluggy-1.5.0/lib/python3.13/site-packages/pluggy/_manager.py:120: in _hookexec
    return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
/nix/store/6wq270gc19f8p07jy7892r05avgwb3xz-python3.13-pytest-8.3.3/lib/python3.13/site-packages/_pytest/threadexception.py:92: in pytest_runtest_call
    yield from thread_exception_runtest_hook()
/nix/store/6wq270gc19f8p07jy7892r05avgwb3xz-python3.13-pytest-8.3.3/lib/python3.13/site-packages/_pytest/threadexception.py:68: in thread_exception_runtest_hook
    yield
/nix/store/6wq270gc19f8p07jy7892r05avgwb3xz-python3.13-pytest-8.3.3/lib/python3.13/site-packages/_pytest/unraisableexception.py:95: in pytest_runtest_call
    yield from unraisable_exception_runtest_hook()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

    def unraisable_exception_runtest_hook() -> Generator[None]:
        with catch_unraisable_exception() as cm:
            try:
                yield
            finally:
                if cm.unraisable:
                    if cm.unraisable.err_msg is not None:
                        err_msg = cm.unraisable.err_msg
                    else:
                        err_msg = "Exception ignored in"
                    msg = f"{err_msg}: {cm.unraisable.object!r}\n\n"
                    msg += "".join(
                        traceback.format_exception(
                            cm.unraisable.exc_type,
                            cm.unraisable.exc_value,
                            cm.unraisable.exc_traceback,
                        )
                    )
>                   warnings.warn(pytest.PytestUnraisableExceptionWarning(msg))
E                   pytest.PytestUnraisableExceptionWarning: Exception ignored in: <sqlite3.Connection object at 0x7ffff3fec7c0>
E                   
E                   Traceback (most recent call last):
E                     File "/nix/store/9q6cs27gcx2h27brmg7nb8xhbzj0zrnm-python3.13-sqlalchemy-2.0.36/lib/python3.13/site-packages/sqlalchemy/event/base.py", line 148, in __init__
E                       self._empty_listeners = self._empty_listener_reg[instance_cls]
E                                               ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^
E                     File "/nix/store/0b83hlniyfbpha92k2j0w93mxdalv8kb-python3-3.13.0/lib/python3.13/weakref.py", line 415, in __getitem__
E                       return self.data[ref(key)]
E                              ~~~~~~~~~^^^^^^^^^^
E                   KeyError: <weakref at 0x7ffff3e05ad0; to 'type' at 0x1429b20 (Session)>
E                   
E                   During handling of the above exception, another exception occurred:
E                   
E                   Traceback (most recent call last):
E                     File "/nix/store/0b83hlniyfbpha92k2j0w93mxdalv8kb-python3-3.13.0/lib/python3.13/weakref.py", line 428, in __setitem__
E                       self.data[ref(key, self._remove)] = value
E                                 ~~~^^^^^^^^^^^^^^^^^^^
E                   ResourceWarning: unclosed database in <sqlite3.Connection object at 0x7ffff3fec7c0>

Run the testsuite with Python 3.13.0.

https://gist.github.com/mweinelt/843a1c04973a0ba82c01d09f26167d6f

Environment:

• Python version: 3.13.0
• Pytest: version 8.3.3
• Flask-SQLAlchemy version: 3.1.1
• SQLAlchemy version: 2.0.36