readinput.py

from xml.dom.minidom import parse
import urllib

IP = "192.168.178.45"
XML_FILE = "status.xml"
DI1_ELEMENT = "DigitalInput1"
OPEN = "OPEN"
CLOSED = "CLOSED"

xmlpath = "http://" + IP + "/" + XML_FILE

try:
    xml = urllib.urlopen(xmlpath)
    dom = parse(xml)
except Exeption as e:
    print(e)
    
di = dom.getElementsByTagName(DI1_ELEMENT)[0]
v = di.firstChild.nodeValue

if v == CLOSED:
    print "DI1 Closed"