old_contents: from django.conf import settings
  from os import path, listdir
  from lxml import etree
  
  class XmlJsonImportModuleException(Exception):
      pass
  
  if not hasattr(settings, 'XSLT_FILES_DIR'):
      raise XmlJsonImportModuleException('Settings must contain XSLT_FILES_DIR parameter')
  
  if not path.exists(settings.XSLT_FILES_DIR):
      raise XmlJsonImportModuleException('Directory specified by XSLT_FILES_DIR does not exist')
  
  for filename in listdir(settings.XSLT_FILES_DIR):
      filepath = path.join(settings.XSLT_FILES_DIR, filename)
      if path.isfile(filepath):
          try:
              xslt_etree = etree.parse(filepath)
          except etree.XMLSyntaxError as er:
              raise XmlJsonImportModuleException('File ' + filepath + ' is not a valid XML file: ' + str(er))
          try:
              transform = etree.XSLT(xslt_etree)
          except etree.XSLTParseError as er:
              raise XmlJsonImportModuleException('File ' + filepath + ' is not a valid XSLT file: ' + str(er))
  
subject: Delete all code from applications module __init__.py