smil = self._download_xml(smil_url, video_id)
title = find_xpath_attr(smil, './/meta', 'name', 'title').attrib['content']
- description = find_xpath_attr(smil, './/meta', 'name', 'abstract').attrib['content']
+ description_el = find_xpath_attr(smil, './/meta', 'name', 'abstract')
+ description = (
+ None if description_el is None
+ else description_el.attrib['content'])
upload_date = unified_strdate(
find_xpath_attr(smil, './/meta', 'name', 'date').attrib['content'])