bpo-39378: partial of PickleState struct should be traversed. (GH-18046)

diff --git a/Modules/_pickle.c b/Modules/_pickle.c
index a75035107a28e6340e69dd3629690621c101c87c..bcbd3c01029653197880a456d9dfd5e77e72ebaf 100644 (file)
--- a/Modules/_pickle.c
+++ b/Modules/_pickle.c
@@ -7965,6 +7965,7 @@ pickle_traverse(PyObject *m, visitproc visit, void *arg)
     Py_VISIT(st->import_mapping_3to2);
     Py_VISIT(st->codecs_encode);
     Py_VISIT(st->getattr);
+    Py_VISIT(st->partial);
     return 0;
 }