Python rdflib 模块，Literal() 实例源码

我们从Python开源项目中，提取了以下50个代码示例，用于说明如何使用rdflib.Literal()。

项目：scheduled-bots 作者：SuLab | 项目源码 | 文件源码

def get_do_metadata():
    # from the do owl file, get do labels, descriptions
    g = Graph()
    g.parse(DO_OWL_PATH)

    disease_ontology = Literal('disease_ontology', datatype=URIRef('http://www.w3.org/2001/XMLSchema#string'))
    query = """
        SELECT * WHERE {
            ?id oboInOwl:hasOBONamespace ?disease_ontology .
            ?id rdfs:label ?label .
            OPTIONAL {?id obo:IAO_0000115 ?descr}
            FILTER NOT EXISTS {?id owl:deprecated ?dep}
        }
        """
    rows = g.query(query, initBindings={'disease_ontology': disease_ontology})
    res = [{str(k): str(v) for k, v in binding.items()} for binding in rows.bindings]
    df = pd.DataFrame(res)
    df.drop_duplicates(subset=['id'], inplace=True)
    df.fillna("", inplace=True)
    do = df.to_dict("records")
    do = {purl_to_curie(x['id']): x for x in do}
    return do

项目：odmtp-tpf 作者：benjimor | 项目源码 | 文件源码

def result_set_2_rdf(self, result_set, reduced_mapping, fragment):
        for tweet in result_set:
            for s, p, o in reduced_mapping.mapping:
                subject = s
                obj = o
                splited_subject = subject.split('{')
                subject_prefix = splited_subject[0]
                subject_jsonpath = parse(splited_subject[1].split('}')[0])
                subject_values = [match.value for match in subject_jsonpath.find(tweet)]
                if '$.' in obj:
                    object_jsonpath = parse(obj.split('{')[0].split('}')[0])
                    object_values = [match.value for match in object_jsonpath.find(tweet)]
                    for object_value in object_values:
                        fragment.add_data_triple(URIRef("%s%s" % (subject_prefix, subject_values[0])), p, Literal(object_value))
                else:
                    fragment.add_data_triple(URIRef("%s%s" % (subject_prefix, subject_values[0])), p, obj)

项目：odmtp-tpf 作者：benjimor | 项目源码 | 文件源码

def result_set_2_rdf(self, result_set, reduced_mapping, fragment):
        for repo in result_set:
            for s, p, o in reduced_mapping.mapping:
                subject = s
                obj = o
                splited_subject = subject.split('{')
                subject_prefix = splited_subject[0]
                subject_jsonpath = parse(splited_subject[1].split('}')[0])
                subject_values = [match.value for match in subject_jsonpath.find(repo)]
                if '$.' in obj:
                    object_jsonpath = parse(obj.split('{')[0].split('}')[0])
                    object_values = [match.value for match in object_jsonpath.find(repo)]
                    for object_value in object_values:
                        fragment.add_data_triple(URIRef("%s%s" % (subject_prefix, subject_values[0])), p, Literal(object_value))
                else:
                    fragment.add_data_triple(URIRef("%s%s" % (subject_prefix, subject_values[0])), p, obj)

项目：smartcontainers 作者：crcresearch | 项目源码 | 文件源码

def test_create_graph():
    """Create new graphFactory Object"""
    from sc import graphManager

    PROV = Namespace("http://www.w3.org/ns/prov#")
    tstregistry = graphManager.VocabularyRegistry()

    vocab1 = Vocabulary1()
    tstregistry.register(vocab1)
    vocab2 = Vocabulary2()
    tstregistry.register(vocab2)

    tstregistry.build_graph()
    print tstregistry.get_turtle()
    # Check assertions in global graph store
    assert (URIRef("http://orcid.org/000-0003-4901-6059"),
            RDF.type, PROV.Person) in tstregistry.global_graph
    assert (URIRef(uuidurn),
            RDFS.label,  Literal(
                "Docker: https://www.docker.com/")) in tstregistry.global_graph
    # Check Serialization
    jsongraph = json.loads(tstregistry.get_json_ld())
    assert '@context' in jsongraph

项目：programming-the-semantic-web 作者：utecht | 项目源码 | 文件源码

def __addAction(self, action, statement):
        element = self.trans.createElement(action)
        for item in statement:
            if isinstance(item, Literal):
                literal = self.trans.createElement("literal")
                if item.datatype is not None: literal.setAttribute("datatype", str(item.datatype))
                if item.language is not None: literal.setAttribute("xml:lang", str(item.language))
                literal.appendChild(self.trans.createTextNode(str(item)))
                element.appendChild(literal)
            elif isinstance(item, URIRef):
                uri = self.trans.createElement("uri")
                uri.appendChild(self.trans.createTextNode(str(item)))
                element.appendChild(uri)
            elif isinstance(item, BNode):
                bnode = self.trans.createElement("bnode")
                bnode.appendChild(self.trans.createTextNode(str(item)))
                element.appendChild(bnode)
            else:
                raise Exception("Unknown element: " + item)
        self.trans.childNodes[0].appendChild(element)

项目：programming-the-semantic-web 作者：utecht | 项目源码 | 文件源码

def __setattr__(self, name, values):
        self._objectGraph._load(self.uri)
        unwrappedValues = []
        for value in values:
            # unwrap rdfobjects:
            if isinstance(value, RDFObject):
                unwrappedValues.append(value.uri)
            # pass through rdflib objects:
            elif isinstance(value, URIRef) or isinstance(value, BNode) or isinstance(value, Literal):
                unwrappedValues.append(value)
            # wrap literals:
            else:
                unwrappedValues.append(Literal(value))
        # look for a property mapping for this name:
        prop = self._getProp(name)
        if name.startswith("r_"):
            self._objectGraph._setSubjects(unwrappedValues, prop, self.uri)
        else:
            self._objectGraph._setObjects(self.uri, prop, unwrappedValues)