#sudo /usr/bin/ndiff --xml 254A01.xml 254A02.xml
Traceback (most recent call last):
  File "/usr/bin/ndiff", line 85, in <module>
    sys.exit(ndiff.main())
  File "/usr/lib/python3/dist-packages/ndiff.py", line 1512, in main
    scan_a.load_from_file(filename_a)
  File "/usr/lib/python3/dist-packages/ndiff.py", line 73, in load_from_file
    self.load(f)
  File "/usr/lib/python3/dist-packages/ndiff.py", line 68, in load
    parser.parse(f)
  File "/usr/lib/python3.9/xml/sax/expatreader.py", line 111, in parse
    xmlreader.IncrementalParser.parse(self, source)
  File "/usr/lib/python3.9/xml/sax/xmlreader.py", line 125, in parse
    self.feed(buffer)
  File "/usr/lib/python3.9/xml/sax/expatreader.py", line 217, in feed
    self._parser.Parse(data, isFinal)
  File "../Modules/pyexpat.c", line 459, in EndElement
  File "/usr/lib/python3.9/xml/sax/expatreader.py", line 336, in end_element
    self._cont_handler.endElement(name)
  File "/usr/lib/python3/dist-packages/ndiff.py", line 1246, in endElement
    handler(name)
  File "/usr/lib/python3/dist-packages/ndiff.py", line 1427, in _end_port
    self.current_port.script_results.sort()
TypeError: '<' not supported between instances of 'ScriptResult' and 'ScriptResult'