Danny! I couldn't resist trying threading again, now that the mysterious single-threading behavior is gone.
I didn't put any locks anywhere. And it runs like a champ. Like a super champ. Either I had to put back threading or I had to make a family of socket-readers, or lose some functionality in my test scheme. So I gave it a shot. And, I'm very happy. Thank you again. Marilyn p.s. I hope you're well. _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor