From 6063e2615f4d8647e1808d0c94286e525085536f Mon Sep 17 00:00:00 2001
From: Tim Peters <tim.peters@gmail.com>
Date: Thu, 8 Aug 2002 01:06:39 +0000
Subject: PyList_Reverse():  This was leaking a reference to Py_None on every
 call. I believe I introduced this bug when I refactored the reversal code so
 that the mergesort could use it too.  It's not a problem on the 2.2 branch.

---
 Objects/listobject.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Objects/listobject.c b/Objects/listobject.c
index e2b9b2b..7fad905 100644
--- a/Objects/listobject.c
+++ b/Objects/listobject.c
@@ -1718,11 +1718,14 @@ listreverse(PyListObject *self)
 int
 PyList_Reverse(PyObject *v)
 {
+	PyListObject *self = (PyListObject *)v;
+
 	if (v == NULL || !PyList_Check(v)) {
 		PyErr_BadInternalCall();
 		return -1;
 	}
-	listreverse((PyListObject *)v);
+	if (self->ob_size > 1)
+		reverse_slice(self->ob_item, self->ob_item + self->ob_size);
 	return 0;
 }
 
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