Once we're done with the sys module, remove it from the namespace so

this module is "import *" safe.

Lib/xml/sax/_exceptions.py

@@ -2,6 +2,7 @@
 import sys
 if sys.platform[:4] == "java":
     from java.lang import Exception
+del sys
 
 # ===== SAXEXCEPTION =====
 
@@ -15,7 +16,7 @@ class SAXException(Exception):
     the exception; instead, you can simply read the information in
     it."""
 
-    def __init__(self, msg, exception = None):
+    def __init__(self, msg, exception=None):
         """Creates an exception. The message is required, but the exception
         is optional."""
         self._msg = msg
@@ -103,6 +104,3 @@ class SAXNotSupportedException(SAXException):
     perform is requested (specifically setting a state or value). SAX
     applications and extensions may use this class for similar
     purposes."""
-
-
-