ReplyToText | Python Fiddle

#ReplytoTextMessage.py

import time
import serial
import datetime
temp = "22.5"
recipient = "+64211942435"
message = "This is reply from Raspberry Pi."

#Configure serial port
ser = serial.Serial("/dev/serial0",  9600, timeout=5)

print('Setting the modem to text mode...')
ser.write(b'AT+CMGF=1\r') # set to text mode
time.sleep(2)
setmode = ser.read(ser.inWaiting())
print (setmode)

print('List all existing messages...')
ser.write(b'AT+CMGL\r') # list all SMS
time.sleep(2)
listall = ser.read(ser.inWaiting())
print (listall)

print('Deleting all existing messages...')
ser.write(b'AT+CMGDA="DEL ALL"\r') # delete all SMS
time.sleep(0.5)
delall = ser.read(ser.inWaiting())
print (delall)

print('Check serial port buffer...')
reply = ser.read(ser.inWaiting()) # Clean buf
if reply == "":
    print('Serial port buffer empty...\r\n')

print('Starting the indefinite loop...')
while True:
    reply = ser.read(ser.inWaiting())
    print ('Listening for incoming messages...')
    print(reply)
    if reply != "":
        ser.write(b'AT+CMGR=1\r')
        time.sleep(3)
        reply = ser.read(ser.inWaiting())
        print (b'This is what we received now: ' + reply)
        time.sleep(3)
        if b'getStatus' in reply:
            ser.write(b'AT+CMGS="' + recipient.encode() + b'"\r')
            time.sleep(3)
            ser.write(message.encode() + b'\r')
            time.sleep(1)
			print('Sending reply to message...')
            ser.write(bytes([26]))
        print('Next we should delete all messages')
        ser.write(b'AT+CMGDA="DEL ALL"\r') # delete all SMS
        time.sleep(3)
        print('Messages should be deleted now')
        time.sleep(5)
        ser.read(ser.inWaiting()) # Clear buf

time.sleep(5)

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