docs: def parseelement(elem):
      '''
      Convert the content of an element into more ElementTree structures.
      We do this because sometimes we want to set xml as the content of an element.
      '''
      xml = '<%(tag)s>%(content)s</%(tag)s>' % {'tag' : elem.tag, 'content' : elem.text}
      et = etree.fromstring(xml)
      replaceelement(elem, et)