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

Tools/compiler/compile.py

@@ -40,7 +40,7 @@ def main():
                 else:
                     compileFile(filename, DISPLAY)
 
-            except SyntaxError, err:
+            except SyntaxError as err:
                 print err
                 if err.lineno is not None:
                     print err.lineno