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/Doc/tools/sgmlconv/esistools.py b/Doc/tools/sgmlconv/esistools.py
index 833fea1..6dc5eaa 100644
--- a/Doc/tools/sgmlconv/esistools.py
+++ b/Doc/tools/sgmlconv/esistools.py
@@ -139,7 +139,7 @@
     def _get_token(self, fp):
         try:
             line = fp.readline()
-        except IOError, e:
+        except IOError as e:
             e = SAXException("I/O error reading input stream", e)
             self.getErrorHandler().fatalError(e)
             return