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gh-114570: Add PythonFinalizationError exception (#115352)

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Add PythonFinalizationError exception. This exception derived from
RuntimeError is raised when an operation is blocked during the Python
finalization.

The following functions now raise PythonFinalizationError, instead of
RuntimeError:

* _thread.start_new_thread()
* subprocess.Popen
* os.fork()
* os.fork1()
* os.forkpty()

Morever, _winapi.Overlapped finalizer now logs an unraisable
PythonFinalizationError, instead of an unraisable RuntimeError.
This commit is contained in:
Victor Stinner 2024-02-14 23:35:06 +01:00 • committed by GitHub
parent 326119d373
commit 3e7b7df5cb
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13 changed files with 55 additions and 6 deletions
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Modules/_winapi.c
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@ -139,7 +139,7 @@ overlapped_dealloc(OverlappedObject *self)
{
/* The operation is still pending -- give a warning. This
will probably only happen on Windows XP. */
PyErr_SetString(PyExc_RuntimeError,
PyErr_SetString(PyExc_PythonFinalizationError,
"I/O operations still in flight while destroying "
"Overlapped object, the process may crash");
PyErr_WriteUnraisable(NULL);