old_contents: # -*- coding: utf-8 -*-
  
  # Akvo RSR is covered by the GNU Affero General Public License.
  # See more details in the license.txt file located at the root folder of the Akvo RSR module.
  # For additional details on the GNU license please see < http://www.gnu.org/licenses/agpl.html >.
  from lxml import etree
  import os
  
  from tastypie.serializers import Serializer
  
  class IATISerializer(Serializer):
  
      def from_etree(self, data):
          """ transform the iati-activity XML into "tastypie compliant" XML using the 'iati-xslt.xml' stylesheet
          """
          if data.tag == 'iati-activity':
              with open(os.path.join(os.path.dirname(__file__),'xml', 'iati-xslt.xml'), 'r') as f:
                  iati_xslt = f.read()
              etree_xml = etree.XML(iati_xslt)
              etree_xslt = etree.XSLT(etree_xml)
              tasty_xml = etree_xslt(data)
              return self.from_etree(tasty_xml.getroot())
          else:
              return super(IATISerializer, self).from_etree(data)
new_contents: # -*- coding: utf-8 -*-
  
  # Akvo RSR is covered by the GNU Affero General Public License.
  # See more details in the license.txt file located at the root folder of the Akvo RSR module.
  # For additional details on the GNU license please see < http://www.gnu.org/licenses/agpl.html >.
  from lxml import etree
  import os
  
  from tastypie.serializers import Serializer
  
  class IATISerializer(Serializer):
  
      def from_etree(self, data):
          """ transform the iati-activity XML into "tastypie compliant" XML using the 'iati-xslt.xsl' stylesheet
          """
          if data.tag == 'iati-activity':
              with open(os.path.join(os.path.dirname(__file__),'xml', 'iati-xslt.xsl'), 'r') as f:
                  iati_xslt = f.read()
              etree_xml = etree.XML(iati_xslt)
              etree_xslt = etree.XSLT(etree_xml)
              tasty_xml = etree_xslt(data)
              return self.from_etree(tasty_xml.getroot())
          else:
              return super(IATISerializer, self).from_etree(data)
subject: Fix IATISerializer.from_etree() so it uses iati-xslt.xsl