convert old fail* assertions to assert*
diff --git a/Lib/test/test_xmlrpc_net.py b/Lib/test/test_xmlrpc_net.py
index f6ebbf0..56b74b2 100644
--- a/Lib/test/test_xmlrpc_net.py
+++ b/Lib/test/test_xmlrpc_net.py
@@ -33,7 +33,7 @@
             delta = dt1 - dt0
         # The difference between the system time here and the system
         # time on the server should not be too big.
-        self.assert_(delta.days <= 1)
+        self.assertTrue(delta.days <= 1)
 
 
 def test_main():