SF patch 1631942 by Collin Winter:
(a) "except E, V" -> "except E as V"
(b) V is now limited to a simple name (local variable)
(c) V is now deleted at the end of the except block
diff --git a/Lib/test/test_sax.py b/Lib/test/test_sax.py
index 83ffcf1..d3939c0 100644
--- a/Lib/test/test_sax.py
+++ b/Lib/test/test_sax.py
@@ -479,7 +479,7 @@
     source.setSystemId(name)
     try:
         parser.parse(source)
-    except SAXException, e:
+    except SAXException as e:
         return e.getSystemId() == name
 
 def test_expat_incomplete():