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/codeop.py b/Lib/codeop.py
index 5616d92..6abde2e 100644
--- a/Lib/codeop.py
+++ b/Lib/codeop.py
@@ -80,18 +80,18 @@
 
     try:
         code = compiler(source, filename, symbol)
-    except SyntaxError, err:
+    except SyntaxError as err:
         pass
 
     try:
         code1 = compiler(source + "\n", filename, symbol)
-    except SyntaxError, err1:
-        pass
+    except SyntaxError as e:
+        err1 = e
 
     try:
         code2 = compiler(source + "\n\n", filename, symbol)
-    except SyntaxError, err2:
-        pass
+    except SyntaxError as e:
+        err2 = e
 
     if code:
         return code