Oops.  Two fixes for SF bug #422004 are not needed. :-)
diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index 4ee82e4..232ba55 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -152,7 +152,6 @@
 
 	/* phase 2 of builtins */
 	_PyImport_FixupExtension("__builtin__", "__builtin__");
-	_PyImport_FixupExtension("exceptions", "exceptions");
 
 	initsigs(); /* Signal handling stuff, including initintr() */