Bryan wrote: > Thanks for the clarifications. One more question, can I catch this > exception in my main thread and then do another sys.exit() to kill the whole > process?
Not as such. Exceptions can be caught only in the thread in which they are raised. There are tricky techniques to change this, but they would have to rely on things which are themselves sufficient for what you are trying to do. > Apparently sys.exit() allows the program to clean up resources and exit > gracefully, while os._exit() is rather abrupt. What does the main thread do while the other thread is running? If it's just waiting for it and other threads to finish/fail, then you need to have some kind of loop that waits for all other threads to not respond True to .isAlive(), and/or you need to add a threading.Event or something like it which the main thread can wait on or poll to see whether a thread has caught an exception, *and* you need to make all those other threads catch their own exceptions at the top levels of their run() method, and to set that Event object if SystemExit is caught. Or related techniques. If that's not enough ideas for you to figure something out, please provide more detail and we can come up with something more specific and appropriate. For example, do you want to exit the app only if a thread raises SystemExit, or would other exceptions result in the same effect? -Peter -- http://mail.python.org/mailman/listinfo/python-list
