xml_to_json.py

# Borrowed from http://stackoverflow.com/a/2527623/149468

class objectJSONEncoder(json.JSONEncoder):
  """A specialized JSON encoder that can handle simple lxml objectify types
  >>> from lxml import objectify
  >>> obj = objectify.fromstring("<Book><price>1.50</price><author>W. Shakespeare</author></Book>")       
  >>> objectJSONEncoder().encode(obj)
  '{"price": 1.5, "author": "W. Shakespeare"}'       
  """
  def default(self,o):
    if isinstance(o, lxml.objectify.IntElement):
      return int(o)
    if isinstance(o, lxml.objectify.NumberElement) or isinstance(o, lxml.objectify.FloatElement):
      return float(o)
    if isinstance(o, lxml.objectify.ObjectifiedDataElement):
      return str(o)
    if hasattr(o, '__dict__'):
      #For objects with a __dict__, return the encoding of the __dict__
      return o.__dict__
      
    return json.JSONEncoder.default(self, o)