python line of code to store the output as an xml file?

!/usr/bin/env python

from socket import *

if __name__ == '__main__':

target = raw_input('Enter host to scan: ')

targetIP = gethostbyname(target)

print 'Starting scan on host ', targetIP

#scan reserved ports

for i in range(20, 1025):

s = socket(AF_INET, SOCK_STREAM)

result = s.connect_ex((targetIP, i))

if(result == 0) :

print 'Port %d: OPEN' % (i,)

s.close()

this is my code, how can i tell python to writte this document to a file as an .xml file on a folder on my desktop