gh-102594: PyErr_SetObject adds note to exception raised on normalization error (#102675)

1 files changed, 15 insertions, 0 deletions

diff --git a/Objects/exceptions.c b/Objects/exceptions.c
index c6fb6a3..d69f740 100644
--- a/Objects/exceptions.c
+++ b/Objects/exceptions.c
@@ -3749,6 +3749,21 @@ _PyExc_Fini(PyInterpreterState *interp)
     _PyExc_FiniTypes(interp);
 }
 
+int
+_PyException_AddNote(PyObject *exc, PyObject *note)
+{
+    if (!PyExceptionInstance_Check(exc)) {
+        PyErr_Format(PyExc_TypeError,
+                     "exc must be an exception, not '%s'",
+                     Py_TYPE(exc)->tp_name);
+        return -1;
+    }
+    PyObject *r = BaseException_add_note(exc, note);
+    int res = r == NULL ? -1 : 0;
+    Py_XDECREF(r);
+    return res;
+}
+
 /* Helper to do the equivalent of "raise X from Y" in C, but always using
  * the current exception rather than passing one in.
  *