def firewall_device_list_xml():
    firewall_device_list_response = s.post(_csm_server+'configservice/getDeviceListByType', data=firewall_device_list_body)
    firewall_device_list_response_text = firewall_device_list_response.text
    tree = ET.fromstring(firewall_device_list_response_text)
    fwdata = "null"
    for firewall_elemments in tree.findall('.//'):
        for elements in firewall_elemments:
            tag = elements.tag
            text = elements.text
            if tag == "deviceName" and "W2-DEV" in text:
                fwdata = text
            if tag == "gid" and "W2-DEV" in fwdata:
                fwdata = fwdata + " : " + text
                print fwdata