Clear exceptions upon failure.

ZeroIntensity · ZeroIntensity · commit d2e621a86118 · 2025-05-18T10:59:00.000-04:00
diff --git a/Python/errors.c b/Python/errors.c
@@ -1495,6 +1495,7 @@ write_unraisable_exc_file(PyThreadState *tstate, PyObject *exc_type,
         }
     }
     // traceback module failed, fall back to pure C
+    _PyErr_Clear(tstate);
     Py_XDECREF(print_exception_fn);
 
     if (exc_tb != NULL && exc_tb != Py_None) {

Original file line number	Diff line number	Diff line change
`@@ -1495,6 +1495,7 @@ write_unraisable_exc_file(PyThreadState tstate, PyObject exc_type,`
`1495`	`1495`	`}`
`1496`	`1496`	`}`
`1497`	`1497`	`// traceback module failed, fall back to pure C`
	`1498`	`+ _PyErr_Clear(tstate);`
`1498`	`1499`	`Py_XDECREF(print_exception_fn);`
`1499`	`1500`
`1500`	`1501`	`if (exc_tb != NULL && exc_tb != Py_None) {`