exceptions was missing from the module list. Added.
diff --git a/Mac/Modules/macconfig.c b/Mac/Modules/macconfig.c
index 0e4dd91..5d17c0b 100644
--- a/Mac/Modules/macconfig.c
+++ b/Mac/Modules/macconfig.c
@@ -306,6 +306,7 @@
 	/* These entries are here for sys.builtin_module_names */
 	{"__main__", NULL},
 	{"__builtin__", NULL},
+	{"exceptions", NULL},
 	{"sys", NULL},
 
 	/* Sentinel */