def process_exists(self, procname):
        ps = subprocess.Popen("ps -A", shell=True, stdout=subprocess.PIPE)
        ps_pid = ps.pid
        output = ps.stdout.read()
        ps.stdout.close()
        ps.wait()

        for line in output.split('\n'):
            if line != "" and line != None:
                fields = line.split()
                pid = fields[0]
                pname = fields[3]

                if (pname == procname):
                    return True
                else:
                    return True
        return False