new_contents: #!/usr/bin/python
  # -*- coding: ISO-8859-15 -*-
  # =================================================================
  #
  # $Id$
  #
  # Authors: Angelos Tzotsos <tzotsos@gmail.com>
  #
  # Copyright (c) 2011 Angelos Tzotsos
  #
  # Permission is hereby granted, free of charge, to any person
  # obtaining a copy of this software and associated documentation
  # files (the "Software"), to deal in the Software without
  # restriction, including without limitation the rights to use,
  # copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the
  # Software is furnished to do so, subject to the following
  # conditions:
  #
  # The above copyright notice and this permission notice shall be
  # included in all copies or substantial portions of the Software.
  #
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  # OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  # HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  # WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  # OTHER DEALINGS IN THE SOFTWARE.
  #
  # =================================================================
  
  import os
  import sys
  
  from lxml import etree
  
  if len(sys.argv) < 3:
      print 'Usage: %s <xml> <xsd>' % sys.argv[0]
      sys.exit(1)
  
  print 'Validating %s against schema %s' % (sys.argv[1], sys.argv[2])
  
  schema = etree.XMLSchema(etree.parse(sys.argv[2]))
  parser = etree.XMLParser(schema=schema)
  
  try:
      valid = etree.parse(sys.argv[1], parser)
      print 'Valid XML document'
  except Exception, err:
      print 'ERROR: %s' % str(err)
  
subject: add XML validation utility