gistfile1.txt

#!/usr/bin/python

import sys
import serial
import json


def main(device, load_json=False):
    device_path = "/dev/{0}".format(device)
    print "Opening {}".format(device_path)

    serial_connection = serial.Serial(device_path, 9600, timeout=1)

    print "Starting to read from serial... ctrl-c to stop"
    while (True):
       json_input = serial_connection.readline()
       if json_input:
           try:
               print json_input
               if load_json:
                   print "JSON Version: ",
                   print json.loads(json_input)
           except Exception as e:
               print e.message

if __name__ == "__main__":
    device = "ttyUSB0"
    load_json = False
    if len(sys.argv) == 2:
        device = sys.argv[1]

    if len(sys.argv) == 3:
        load_json = sys.argv[2]

    main(device, load_json)