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/compiler/pycodegen.py b/Lib/compiler/pycodegen.py
index 325ca06..55d2617 100644
--- a/Lib/compiler/pycodegen.py
+++ b/Lib/compiler/pycodegen.py
@@ -227,7 +227,7 @@
assert getattr(self, 'NameFinder')
assert getattr(self, 'FunctionGen')
assert getattr(self, 'ClassGen')
- except AssertionError, msg:
+ except AssertionError as msg:
intro = "Bad class construction for %s" % self.__class__.__name__
raise AssertionError, intro