From friend-on-map

location_ip.py

IP_URL = "http://api.hostip.info/?ip="
'
def location(self, user):
        """
        :param user: user id(uid)
        :return: address from ndb, coordinates from IP
        """
        address = '%s, %s' % (user.country, user.city)
        coords = self.get_coords(self.request.remote_addr)  # receive location from id
        if coords == None:
            coords = "36.315125,-27.802738"
            return address, coords
        return address, coords

def get_coords(self, ip):
        url = IP_URL + ip
        content = None
        try:
            content = urllib2.urlopen(url).read()
        except URLError:
            return

        if content:
            d = minidom.parseString(content)
            coords = d.getElementsByTagName("gml:coordinates")
            if coords and coords[0].childNodes[0].nodeValue:
                lon, lat = coords[0].childNodes[0].nodeValue.split(',')
                return lon, lat