Issues with Python script as service

[gontajones]

import time
import signal
import sys

def handler(signum, frame):
    print 'Got SIGTERM!'
    sys.exit(0) # raises a SystemExit exception

# Register a handler (function) for the SIGTERM signal
signal.signal(signal.SIGTERM, handler)

try:
    initialize()
    while True:
        hourMinute = datetime.now().strftime('%H:%M')
        logger.info("Main()> hourMinute= " + hourMinute)

        humidityAndTemp();

        if(iState == 'off'):
            startInletFan(hourMinute)
        else:
            stopInletFan(hourMinute)

        if(eState == 'off'):
            startExhaustFan(hourMinute)
        else:
            stopExhaustFan(hourMinute)

        if(vState == 'off'):
            startVentilationFan(hourMinute)
        else:
            stopVentilationFan(hourMinute)

        if(pState == 'off'):
            startPump(hourMinute)
        else:
            stopPump(hourMinute)

        time.sleep(30)

# End program cleanly with keyboard or sys.exit(0)
except KeyboardInterrupt:
    print " Quit (Ctrl+C)"
except SystemExit:
    print " Quit (SIGTERM)"

# Reset GPIO settings
GPIO.cleanup()