import pygsm

modem = pygsm.GsmModem("/dev/ttyS0", baudrate=115200, timeout=1)
modem.boot()



for i in range(25):
	try:
		temp = modem.command('AT+CMGR=' + str(i+1)+',1')
                if "REC READ" in temp[0]:
                	modem.query('AT+CMGD=' + str(i+1))
        except:
                pass