while True:
    try:
        xmldata = "<eventSubscribe cookie="%s" />" % (self.cookie)
        r = requests.post(post_url,data=xmldata,stream=False,verify=False,timeout=10)
        write_to_file('Ok',r.text)
        unsubevents()
        logout()
    except Exception as e:
        print e
        self.write_to_file('Ok',"")
    self.login()