That was the problem. thanks for the clarity - finally working.
> How did you install python? By default, if built from ports, it should > pop up a configuration dialog in which one of the options is to enable > thread support. If you have a bad configuration record, you can do a > "make config" in /usr/ports/lang/python to re-create it. > > (if there's no such option, then maybe using threads with python is > disabled in 4.x) -- http://mail.python.org/mailman/listinfo/python-list