> > raise SystemExit > > or > > import sys > > sys.exit() > I think you misunderstood (or my expression was bad) ... I > mean when a long program is running how do you terminate it. Uh, OK I misunderstood. CTRL-C should work....unless you've caught the exception somewhere. Personally I wouldn't run any long term process from IDLE I'd crank upm a DOS box for that... Alan G.