Index: Python/traceback.c
===================================================================
--- Python/traceback.c	(révision 66786)
+++ Python/traceback.c	(copie de travail)
@@ -25,6 +25,12 @@
 	return PyMember_Get((char *)tb, tb_memberlist, name);
 }
 
+static int
+tb_setattr(PyTracebackObject *tb, char *name, PyObject* value)
+{
+	return PyMember_Set((char *)tb, tb_memberlist, name, value);
+}
+
 static void
 tb_dealloc(PyTracebackObject *tb)
 {
@@ -59,7 +65,7 @@
 	(destructor)tb_dealloc, /*tp_dealloc*/
 	0,		/*tp_print*/
 	(getattrfunc)tb_getattr, /*tp_getattr*/
-	0,		/*tp_setattr*/
+	(setattrfunc)tb_setattr, /*tp_setattr*/
 	0,		/*tp_compare*/
 	0,		/*tp_repr*/
 	0,		/*tp_as_number*/