from lxml import etree
parser = etree.XMLParser(dtd_validation=True)
a = '<ACK ID="ENABLE_SEND_POG_RIGHT" STATE="1"'
try:
b = etree.fromstring(a)
print(b.tag) # ACK
print(b.attrib) # {"ID":..., "STATE":...}
except:
# When something goes wrong
pass