diff -up hplip-3.15.2/fax/backend/hpfax.py.no-write-bytecode hplip-3.15.2/fax/backend/hpfax.py
--- hplip-3.15.2/fax/backend/hpfax.py.no-write-bytecode	2015-03-03 11:47:12.863274174 +0000
+++ hplip-3.15.2/fax/backend/hpfax.py	2015-03-03 11:47:19.719336663 +0000
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python -B
 # -*- coding: utf-8 -*-
 #
 # (c) Copyright 2003-2009 Hewlett-Packard Development Company, L.P.