Add PyDict_SetDefault. (closes #17327)

Patch by Stefan Behnel and I.

1 files changed, 2 insertions, 0 deletions

diff --git a/Include/dictobject.h b/Include/dictobject.h
index d89aac8932..16bd1d6cb1 100644
--- a/Include/dictobject.h
+++ b/Include/dictobject.h
@@ -53,6 +53,8 @@ PyAPI_FUNC(PyObject *) PyDict_GetItem(PyObject *mp, PyObject *key);
 PyAPI_FUNC(PyObject *) PyDict_GetItemWithError(PyObject *mp, PyObject *key);
 PyAPI_FUNC(PyObject *) _PyDict_GetItemIdWithError(PyObject *dp,
                                                   struct _Py_Identifier *key);
+PyAPI_FUNC(PyObject *) PyDict_SetDefault(
+    PyObject *mp, PyObject *key, PyObject *defaultobj);
 PyAPI_FUNC(int) PyDict_SetItem(PyObject *mp, PyObject *key, PyObject *item);
 PyAPI_FUNC(int) PyDict_DelItem(PyObject *mp, PyObject *key);
 PyAPI_FUNC(void) PyDict_Clear(PyObject *mp);