profiles.py 文件源码

def _object_value_int(self, subject, predicate):
        '''
        Given a subject and a predicate, returns the value of the object as an
        integer

        Both subject and predicate must be rdflib URIRef or BNode objects

        If the value can not be parsed as intger, returns None
        '''
        object_value = self._object_value(subject, predicate)
        if object_value:
            try:
                return int(object_value)
            except ValueError:
                pass
        return None