From: Guido van Rossum <guido@python.org>
Date: Fri, 17 Aug 2001 13:59:27 +0000 (+0000)
Subject: Fix core dump in repr() of instancemethod whose class==NULL.
X-Git-Tag: v2.2a3~476
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4066769b91797f2442df67a097231e3ca6e2139b;p=python

Fix core dump in repr() of instancemethod whose class==NULL.
---

diff --git a/Objects/classobject.c b/Objects/classobject.c
index 9652dfe81c..0f39d4ba68 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);