xml = book.materialize(publishable=True)
response = http.HttpResponse(xml, content_type='application/xml')
response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
xml = book.materialize(publishable=True)
response = http.HttpResponse(xml, content_type='application/xml')
response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug