- firstLi = node['rdf:Alt/rdf:li']
- assert firstLi.unique, "More than one rdf:Alt (localisation not yet supported)"
- return firstLi.element.content
+ firstLi = node.get('rdf:Alt/rdf:li')
+ if firstLi :
+ assert firstLi.unique, "More than one rdf:Alt (localisation not yet supported)"
+ return firstLi.element.content