Issue #1066: implement PEP 3109, 2/3 of PEP 3134.
diff --git a/Python/import.c b/Python/import.c
index 2ef6aec..33cafd0 100644
--- a/Python/import.c
+++ b/Python/import.c
@@ -74,6 +74,7 @@
 		      3040 (added signature annotations)
 		      3050 (print becomes a function)
 		      3060 (PEP 3115 metaclass syntax)
+          3070 (PEP 3109 raise changes)
 .
 */
 #define MAGIC (3060 | ((long)'\r'<<16) | ((long)'\n'<<24))