def close(self):
        if self.sampler:
            self.sampler.close()
        if self.timer:
            self.timer.stop()
        if self.viewer:
            self.viewer.close()
        self.__class__.running = False


#-------------------------------------------------------------------------------
Returns the system identifier of this InputSource.
dataset/ETHPy150Open ericgibert/supersid/supersid/supersid_scanner.py/SuperSID_scanner.close--crossover with--dataset/ETHPy150Open amrdraz/kodr/app/brython/www/src/Lib/xml/sax/xmlreader.py/InputSource.getSystemId