[Python] Small Example for pyserial using Threading

Can anyone please give me a small and simple example on how to use threading with pyserial communication. I am googling for over three days and I am still illeterate and I dont even have a working piece of code which integrate both of them

Basically I am aiming to use threading in this scenario:

Have a serial communication continuously go on in the back ground to attain certain value (say A) from an MCU.

Stop attaining value A - then attain value B...and start continuously attaining value A again.

You can find some basic code here.

import threading
import time
import sys
import serial
import os
import time

def Task1(ser):

while 1:

print "Inside Thread 1"
ser.write('\x5A\x03\x02\x02\x02\x09') # Byte ArrayTo Control a MicroProcessing Unit
b = ser.read(7)
print b.encode('hex')
print "Thread 1 still going on"
time.sleep(1)


def Task2(ser):

print "Inside Thread 2"
print "I stopped Task 1 to start and execute Thread 2"
ser.write('x5A\x03\x02\x08\x02\x0F')
c = ser.read(7)
print c.encode('hex')
print "Thread 2 complete"


def Main():
ser = serial.Serial(3, 11520)
t1 = threading.Thread(target = Task1, args=[ser])
t2 = threading.Thread(target = Task2, args=[ser])
print "Starting Thread 1"
t1.start()
print "Starting Thread 2"
t2.start()

print "=== exiting ==="

ser.close()

if __name__ == '__main__':

Main()

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