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/Lib/optparse.py b/Lib/optparse.py
index f8f643d..e1c675a 100644
--- a/Lib/optparse.py
+++ b/Lib/optparse.py
@@ -1376,7 +1376,7 @@
try:
stop = self._process_args(largs, rargs, values)
- except (BadOptionError, OptionValueError), err:
+ except (BadOptionError, OptionValueError) as err:
self.error(str(err))
args = largs + rargs