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/Demo/cgi/wiki.py b/Demo/cgi/wiki.py
index ee094a8..2f944d6 100644
--- a/Demo/cgi/wiki.py
+++ b/Demo/cgi/wiki.py
@@ -119,5 +119,5 @@
                 f.write('\n')
             f.close()
             return ""
-        except IOError, err:
+        except IOError as err:
             return "IOError: %s" % str(err)