<s>[INST] How to exit from Python without traceback? I would like to know how to I exit from Python without having an traceback dump on the output. 
I still want want to be able to return an error code but I do not want to display the traceback log.
I want to be able to exit using exit(number) without trace but in case of an Exception (not an exit) I want the trace.
 [/INST] You are presumably encountering an exception and the program is exiting because of this (with a traceback).  The first thing to do therefore is to catch that exception, before exiting cleanly (maybe with a message, example given).
Try something like this in your main routine:
import sys, traceback

def main():
    try:
        do main program stuff here
        ....
    except KeyboardInterrupt:
        print "Shutdown requested...exiting"
    except Exception:
        traceback.print_exc(file=sys.stdout)
    sys.exit(0)

if __name__ == "__main__":
    main()

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