From 4066769b91797f2442df67a097231e3ca6e2139b Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Fri, 17 Aug 2001 13:59:27 +0000
Subject: Fix core dump in repr() of instancemethod whose class==NULL.

---
 Objects/classobject.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/Objects/classobject.c b/Objects/classobject.c
index 9652dfe..0f39d4b 100644
--- a/Objects/classobject.c
+++ b/Objects/classobject.c
@@ -2058,15 +2058,19 @@ instancemethod_repr(PyMethodObject *a)
 	}
 	else
 		sfuncname = PyString_AS_STRING(funcname);
-	klassname = PyObject_GetAttrString(klass, "__name__");
-	if (klassname == NULL)
-		PyErr_Clear();
-	else if (!PyString_Check(klassname)) {
-		Py_DECREF(klassname);
+	if (klass == NULL)
 		klassname = NULL;
+	else {
+		klassname = PyObject_GetAttrString(klass, "__name__");
+		if (klassname == NULL)
+			PyErr_Clear();
+		else if (!PyString_Check(klassname)) {
+			Py_DECREF(klassname);
+			klassname = NULL;
+		}
+		else
+			sklassname = PyString_AS_STRING(klassname);
 	}
-	else
-		sklassname = PyString_AS_STRING(klassname);
 	if (self == NULL)
 		sprintf(buffer, "<unbound method %.100s.%.100s>",
 			sklassname, sfuncname);
-- 
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