Load User properties from Flickr.

def _load_properties(self):
        """Load User properties from Flickr."""
        method = 'flickr.people.getInfo'
        data = _doget(method, user_id=self.__id)

        self.__loaded = True
        
        person = data.rsp.person

        self.__isadmin = person.isadmin
        self.__ispro = person.ispro
        self.__icon_server = person.iconserver
        if int(person.iconserver) > 0:
            self.__icon_url = 'http://photos%s.flickr.com/buddyicons/%s.jpg' \
                              % (person.iconserver, self.__id)
        else:
            self.__icon_url = 'http://www.flickr.com/images/buddyicon.jpg'
        
        self.__username = person.username.text
        self.__realname = person.realname.text
        self.__location = person.location.text
        self.__photos_firstdate = person.photos.firstdate.text
        self.__photos_firstdatetaken = person.photos.firstdatetaken.text
        self.__photos_count = person.photos.count.text