...and don't worry about a possible performance issue of importing os (or any other module) multiple times - the Python import manager is smart enough to recognize previously imported modules, and wont import them again.
If a module uses the os module, then it should import it - that's just it. Another consideration might be that you are breaking up your own program modules too much. For instance, if I had a program in which I were importing urllib in lots of modules, it might indicate that I still have some regrouping to do, and that I could probably gather all of my urllib dependent code into a single place. -- Paul -- http://mail.python.org/mailman/listinfo/python-list
