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/docfixer.py b/Doc/tools/sgmlconv/docfixer.py
index 81519ee..961e3b8 100755
--- a/Doc/tools/sgmlconv/docfixer.py
+++ b/Doc/tools/sgmlconv/docfixer.py
@@ -1039,7 +1039,8 @@
     #
     try:
         write_esis(fragment, ofp, knownempty)
-    except IOError, (err, msg):
+    except IOError as e:
+        (err, msg) = e
         # Ignore EPIPE; it just means that whoever we're writing to stopped
         # reading.  The rest of the output would be ignored.  All other errors
         # should still be reported,