gps and gsm locations from python s60

Goal: periodically obtain 1) BT GPS (i.e. $GPRMC and $GPGGA sentences) and 2) GSM cell id at the same time and save.

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# Simple BT App
#$GPRMC,161229.487,A,3723.2475,N,12158.3416,W,0.13,309.62,120598, ,*10

import socket,location,urllib

class BTReader:

def connect(self):
self.sock=socket.socket(socket.AF_BT,socket.SOCK_STREAM)
address,services=socket.bt_discover()
print "Discovered: %s, %s"%(address,services)
target=(address,services.values()[0])
print "Connecting to "+str(target)
self.sock.connect(target)

def readposition(self):
try:
buffer=""
ch = self.sock.recv(1)
while(ch !='\n'):
buffer+=ch
ch = self.sock.recv(1)
# print buffer

if (buffer[0:6]=="$GPRMC"):
(GPRMC,utc,status,lat,latns,lon,lonew,knots,course,date,xx1,xx2)=buffer.split(",")
return "GPS (%s,%s,%s,%s,%s)"%(utc,lat+latns,lon+lonew,knots,course)
except Error:
return "Error!\n"
return ""

def close(self):
self.sock.close()

class GSM_loc:

def upd(self):
self.loc = location.gsm_location()
return "GSM (MCC:%s MNC:%s LAC:%s CID=%s)"%(self.loc[0], self.loc[1], self.loc[2], self.loc[3])

gsm = GSM_loc()

bt=BTReader()
bt.connect()

i=0
while (i<15):
print gsm.upd()
print bt.readposition()
i+=1

bt.close()