Warning: XSLTProcessor::transformToXml() [xsltprocessor.transformtoxml]: I/O warning : failed to load external entity "file:////srv/scielo/www/bases/xml/sc/v17n12/2306-2495-sc-17-12-44.xml" in /srv-new/scielo/www/htdocs/class.XSLTransformerPHP5.php on line 36 Desarrollo de un Pipeline en Python para el análisis de trazas