Stream GPS to initalstate

GPS tracker

import serial
import pynmea2
import time
from ISStreamer.Streamer import Streamer

serialStream = serial.Serial("/dev/ttyS0", 9600, timeout=0.5)

# construct a streamer instance with information to append to or create
# a bucket and an ini file location that contains the Initial State
# Account Access Key.
streamer = Streamer(bucket_name="GPS Tracker", bucket_key="V4QHQ4747LFE", ini_file_location="./isstreamer.ini")

#streamer.log("Location", "{lat},{lon}".format(lat=53.429,lon=-2.756772))
try:
    while True:
        sentence = serialStream.readline()
        if sentence.find('GGA') > 0:
            data = pynmea2.parse(sentence)
            lat = data.latitude
            if (lat != 0):
                print lat
                streamer.log("Location", "{lat},{lon}".format(lat=data.latitude,lon=data.longitude))
                streamer.log("Altitude ({unit})".format(unit=data.altitude_units), data.altitude)
except KeyboardInterrupt:
    streamer.close()