From 1f577ce363121d590b51abf5c41d1bcf3d751436 Mon Sep 17 00:00:00 2001
From: Hai Shi <shihai1992@gmail.com>
Date: Mon, 2 Mar 2020 14:28:44 +0800
Subject: [PATCH] bpo-39378: partial of PickleState struct should be traversed.
 (GH-18046)

---
 Modules/_pickle.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Modules/_pickle.c b/Modules/_pickle.c
index a75035107a2..bcbd3c01029 100644
--- 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;
 }