Sending SMS via USB Connected Cell Phone with Python

import serial
import time
class SMSsender:
    def __init__(self):
        self.destination = ""
        self.msg = ""

    def setRecipient(self, dest):
        self.destination = dest

    def setContent(self, message):
        self.msg = message

    def connectPhone(self):
        #replace '/dev/ttyACM0' with your device name
        #replace 460800 with a suitable baud-rate of your phone 
        self.ser = serial.Serial('/dev/ttyACM0', 460800, timeout=2)
        time.sleep(1)

    def sendMessage(self):
        self.ser.write('ATZ\r')
        time.sleep(1)
        self.ser.write('AT+CMGF=1\r')
        time.sleep(1)
        self.ser.write('''AT+CMGS="''' + self.recipient + '''"\r''')
        time.sleep(1)
        self.ser.write(self.content + "\r")
        time.sleep(1)
        self.ser.write(chr(26))
        time.sleep(1)

    def disconnectPhone(self):
        self.ser.close()

To send sms use this follow the code below:

sms = SMSsender()
sms.setRecipient('+8801*********')
sms.setContent('Write your message here')
sms.connectPhone()
sms.sendMessage()
sms.disconnectPhone()

You may also try this link(I've not tested yet): sms-over-3g-and-bluetooth-from-python
Source: linux-101.org