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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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5
Objects/exceptions.c
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@ -2177,6 +2177,10 @@ SimpleExtendsException(PyExc_Exception, RuntimeError,
SimpleExtendsException(PyExc_RuntimeError, RecursionError,
"Recursion limit exceeded.");
// PythonFinalizationError extends RuntimeError
SimpleExtendsException(PyExc_RuntimeError, PythonFinalizationError,
"Operation blocked during Python finalization.");
/*
* NotImplementedError extends RuntimeError
*/
@ -3641,6 +3645,7 @@ static struct static_exception static_exceptions[] = {
ITEM(KeyError), // base: LookupError(Exception)
ITEM(ModuleNotFoundError), // base: ImportError(Exception)
ITEM(NotImplementedError), // base: RuntimeError(Exception)
ITEM(PythonFinalizationError), // base: RuntimeError(Exception)
ITEM(RecursionError), // base: RuntimeError(Exception)
ITEM(UnboundLocalError), // base: NameError(Exception)
ITEM(UnicodeError), // base: ValueError(Exception)