XML : Python getparent() not working

I'd like to use getparent() in some code I'm working on to read XML files. When I try what's below I get this error: AttributeError: getparent

I assume I'm making a basic mistake but after an hour of searching and trial and error, I can't figure out what it is. (Using python 2.7 if that matters)

  import xml.etree.cElementTree as ET  import lxml.etree  url = [file.xml]  tree = ET.ElementTree(file=url)    txt = 'texthere'    for elem in tree.iter(tag='text'):      print elem.text      print elem.getparent()