Index: Lib/python/std_set.i
===================================================================
--- Lib/python/std_set.i	(revision 13476)
+++ Lib/python/std_set.i	(working copy)
@@ -49,6 +49,14 @@
        return *(swig::cgetpos(self, i));
      }
 
+     void add(value_type x) {
+       self->insert(x);
+     }
+
+     void discard(value_type x) {
+       self->erase(x);
+     }
+
   };
 %enddef
 
Index: Lib/python/pyrun.swg
===================================================================
--- Lib/python/pyrun.swg	(revision 13476)
+++ Lib/python/pyrun.swg	(working copy)
@@ -1331,6 +1331,9 @@
   } else {
 #if PY_VERSION_HEX >= 0x03000000
     inst = PyBaseObject_Type.tp_new((PyTypeObject*) data->newargs, Py_None, Py_None);
+    if (PyErr_Occurred()) {
+	  PyErr_Print();
+    }
     PyObject_SetAttr(inst, SWIG_This(), swig_this);
     Py_TYPE(inst)->tp_flags &= ~Py_TPFLAGS_VALID_VERSION_TAG;
 #else