I receive a steady stream of questions sent to me about Numerical Python. Frequently, in their zeal to protect themselves from spam, the senders obscure their sending address. This causes my reply to bounce. I sometimes drop the ball and fail to reply promptly due to the volume of letters I receive, advancing senility, or because the question requires research and it goes onto my stack for too long. But before you conclude that I'm not answering you because of ineptitude, please be sure I *can* answer your mail with a simple reply. Thanks, Paul