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/pdist/cmdfw.py b/Demo/pdist/cmdfw.py
index e2edd0a..47d13bc 100755
--- a/Demo/pdist/cmdfw.py
+++ b/Demo/pdist/cmdfw.py
@@ -42,7 +42,7 @@
         if args is None: args = sys.argv[1:]
         try:
             opts, args = getopt.getopt(args, self.GlobalFlags)
-        except getopt.error, msg:
+        except getopt.error as msg:
             return self.usage(msg)
         self.options(opts)
         if not args:
@@ -62,7 +62,7 @@
                 flags = ''
             try:
                 opts, args = getopt.getopt(args[1:], flags)
-            except getopt.error, msg:
+            except getopt.error as msg:
                 return self.usage(
                         "subcommand %s: " % cmd + str(msg))
             self.ready()