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/Tools/compiler/regrtest.py b/Tools/compiler/regrtest.py
index 4244d62..d86d746 100644
--- a/Tools/compiler/regrtest.py
+++ b/Tools/compiler/regrtest.py
@@ -42,7 +42,7 @@
             print file,
             try:
                 compileFile(source)
-            except SyntaxError, err:
+            except SyntaxError as err:
                 print err
                 continue
             # make sure the .pyc file is not over-written