SSDP Discovery Python 3

#qpy:qpyapp
import socket

f1= open('/sdcard/ssdp.txt', 'w')
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.settimeout(10.0)
message = \
    'M-SEARCH * HTTP/1.1\r\n' \
    'HOST:239.255.255.250:1900\r\n' \
    'ST:upnp:rootdevice\r\n' \
    'MX:10\r\n' \
    'MAN:"ssdp:discover"\r\n' \
    '\r\n'
s.sendto(message.encode(),("239.255.255.250",1900))
while 1:
  try:
    data,addr = s.recvfrom(1024)
    print (data.decode())
    print (data.decode(), file=f1)
  except socket.timeout:
    break