From fc42f92c0fa48ca6e3046e7c4bc35ec7e5790fc6 Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@gmail.com>
Date: Thu, 2 Feb 2017 10:56:47 +0100
Subject: Issue #29368: Fix _Pickle_FastCall() usage in do_append()

_Pickle_FastCall() has a surprising API: it decrements the reference counter of
its second argument.
---
 Modules/_pickle.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Modules/_pickle.c b/Modules/_pickle.c
index 996d16ede5..e65b88e9c0 100644
--- a/Modules/_pickle.c
+++ b/Modules/_pickle.c
@@ -5844,7 +5844,6 @@ do_append(UnpicklerObject *self, Py_ssize_t x)
                 return -1;
             }
             result = _Pickle_FastCall(extend_func, slice);
-            Py_DECREF(slice);
             Py_DECREF(extend_func);
             if (result == NULL)
                 return -1;
-- 
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