--- jython-2.1/Tools/jythonc/SimpleCompiler.py.orig     2006-09-08 13:21:29.000000000 -0600
+++ jython-2.1/Tools/jythonc/SimpleCompiler.py  2006-09-08 13:22:15.000000000 -0600
@@ -577,7 +577,7 @@
             args.append(message.asAny())

         return jast.If(self.frame.getglobal("__debug__").nonzero(),
-                       jast.InvokeStatic("Py", "assert", args))
+                       jast.InvokeStatic("Py", "assert_", args))

     def return_stmt(self, value=None):
         if value is None: