from subprocess import STDOUT, PIPE,Popen
from tempfile import NamedTemporaryFile
 
 
command = "iwlist wlan0 scan"
tmpout = open("datos.txt","w+")
p=Popen(command, stdout=PIPE,stderr=PIPE,shell=True).communicate()[0]
 
aux =p.rfind("Cell ")
 
cantidad = int (p[aux+5:aux+7])
print cantidad
 
lista=[[0 for col in range(9)] for row in range(15)]
i=0
 
aux=0
aux2=0
aux3=0
#numero, ap, canal, calidad, ruido, encriptacion, bitrate
while i < cantidad:
	aux=p.find("Cell ",aux+1)
	lista[i][0]=i
	lista[i][1] = p[aux+19:aux+36]
	aux2=p.find("\"",aux+1)
	aux3=p.find("\"",aux2+1)
	lista[i][2] = p[aux2+1:aux3]
	aux2=p.find("Channel",aux)
	aux3=p.find("\n",aux2+2)
	lista[i][3]=p[aux2+8:aux3]
	aux2=p.find("Quality=",aux)
	aux2=p.find("=",aux2)
	aux3=p.find(" ",aux2)
	lista[i][4]=p[aux2+1:aux3]
	aux2=p.find("level",aux2)
	aux2=p.find(":",aux2)
	aux3=p.find("\n",aux2)
	lista[i][5]=p[aux2+1:aux3]
	aux2=p.find("key",aux2)
	aux2=p.find(":",aux2)
	aux3=p.find("\n",aux2)
	lista[i][6]=p[aux2+1:aux3]
	aux2=p.find("Extra",aux)
	aux2=p.rfind("Mb/s",aux2)
	aux3=p.find(" ",aux2-3)
	lista[i][7]=p[aux2-10:aux3]
	i=i+1
 
print p
i=0
while i < cantidad:
	print lista[i][0]
	print lista[i][1]
	print lista[i][2]
	print lista[i][3]
	print lista[i][4]
	print lista[i][5]
	print lista[i][6]
	print lista[i][7]
	print "-----------------"
	i=i+1
 
 
print "aca no deberia pasar"
 
 

bash-3.1# python scan.py
2
wlan0     Scan completed :
          Cell 01 - Address: 00:15:6D:65:38:C7
                    ESSID:"5k Pro1"
                    Mode:Master
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=11/100  Signal level:7/100
                    Encryption key:off
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
                    Extra:tsf=0000002b77712736
                    Extra: Last beacon: 1000ms ago
          Cell 02 - Address: 00:24:D2:D6:95:D3
                    ESSID:"Speedy-WiFi"
                    Mode:Master
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=23/100  Signal level:8/100
                    Encryption key:off
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Extra:tsf=000000335db5179c
                    Extra: Last beacon: 968ms ago


0
00:15:6D:65:38:C7
5k Pro1
1
11/100
7/100
off
 Mb/s; 54
-----------------
1
00:24:D2:D6:95:D3
Speedy-WiFi
1
23/100
8/100
off
968ms ago

-----------------
aca no deberia pasar
bash-3.1#        

aux2=p.rfind("Mb/s",aux,aux2)