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<h1>Source code for rdflib.graph</h1><div class="highlight"><pre>
<span class="kn">from</span> <span class="nn">rdflib.term</span> <span class="kn">import</span> <span class="n">Literal</span> <span class="c"># required for doctests</span>
<span class="n">l</span> <span class="o">=</span> <span class="n">Literal</span><span class="p">(</span><span class="s">''</span><span class="p">)</span>
<span class="k">del</span> <span class="n">l</span>
<span class="kn">from</span> <span class="nn">rdflib.namespace</span> <span class="kn">import</span> <span class="n">Namespace</span> <span class="c"># required for doctests</span>
<span class="n">n</span> <span class="o">=</span> <span class="n">Namespace</span><span class="p">(</span><span class="s">'xxx'</span><span class="p">)</span>
<span class="k">del</span> <span class="n">n</span>
<span class="kn">from</span> <span class="nn">rdflib.py3compat</span> <span class="kn">import</span> <span class="n">format_doctest_out</span>
<span class="n">__doc__</span> <span class="o">=</span> <span class="n">format_doctest_out</span><span class="p">(</span><span class="s">"""</span><span class="se">\</span>
<span class="s">RDFLib defines the following kinds of Graphs:</span>
<span class="s">* :class:`~rdflib.graph.Graph`</span>
<span class="s">* :class:`~rdflib.graph.QuotedGraph`</span>
<span class="s">* :class:`~rdflib.graph.ConjunctiveGraph`</span>
<span class="s">* :class:`~rdflib.graph.Dataset`</span>
<span class="s">Graph</span>
<span class="s">-----</span>
<span class="s">An RDF graph is a set of RDF triples. Graphs support the python ``in``</span>
<span class="s">operator, as well as iteration and some operations like union,</span>
<span class="s">difference and intersection.</span>
<span class="s">see :class:`~rdflib.graph.Graph`</span>
<span class="s">Conjunctive Graph</span>
<span class="s">-----------------</span>
<span class="s">A Conjunctive Graph is the most relevant collection of graphs that are</span>
<span class="s">considered to be the boundary for closed world assumptions. This</span>
<span class="s">boundary is equivalent to that of the store instance (which is itself</span>
<span class="s">uniquely identified and distinct from other instances of</span>
<span class="s">:class:`Store` that signify other Conjunctive Graphs). It is</span>
<span class="s">equivalent to all the named graphs within it and associated with a</span>
<span class="s">``_default_`` graph which is automatically assigned a :class:`BNode`</span>
<span class="s">for an identifier - if one isn't given.</span>
<span class="s">see :class:`~rdflib.graph.ConjunctiveGraph`</span>
<span class="s">Quoted graph</span>
<span class="s">------------</span>
<span class="s">The notion of an RDF graph [14] is extended to include the concept of</span>
<span class="s">a formula node. A formula node may occur wherever any other kind of</span>
<span class="s">node can appear. Associated with a formula node is an RDF graph that</span>
<span class="s">is completely disjoint from all other graphs; i.e. has no nodes in</span>
<span class="s">common with any other graph. (It may contain the same labels as other</span>
<span class="s">RDF graphs; because this is, by definition, a separate graph,</span>
<span class="s">considerations of tidiness do not apply between the graph at a formula</span>
<span class="s">node and any other graph.)</span>
<span class="s">This is intended to map the idea of "{ N3-expression }" that is used</span>
<span class="s">by N3 into an RDF graph upon which RDF semantics is defined.</span>
<span class="s">see :class:`~rdflib.graph.QuotedGraph`</span>
<span class="s">Dataset</span>
<span class="s">-------</span>
<span class="s">The RDF 1.1 Dataset, a small extension to the Conjunctive Graph. The</span>
<span class="s">primary term is "graphs in the datasets" and not "contexts with quads"</span>
<span class="s">so there is a separate method to set/retrieve a graph in a dataset and</span>
<span class="s">to operate with dataset graphs. As a consequence of this approach,</span>
<span class="s">dataset graphs cannot be identified with blank nodes, a name is always</span>
<span class="s">required (RDFLib will automatically add a name if one is not provided</span>
<span class="s">at creation time). This implementation includes a convenience method</span>
<span class="s">to directly add a single quad to a dataset graph.</span>
<span class="s">see :class:`~rdflib.graph.Dataset`</span>
<span class="s">Working with graphs</span>
<span class="s">===================</span>
<span class="s">Instantiating Graphs with default store (IOMemory) and default identifier</span>
<span class="s">(a BNode):</span>
<span class="s"> >>> g = Graph()</span>
<span class="s"> >>> g.store.__class__</span>
<span class="s"> <class 'rdflib.plugins.memory.IOMemory'></span>
<span class="s"> >>> g.identifier.__class__</span>
<span class="s"> <class 'rdflib.term.BNode'></span>
<span class="s">Instantiating Graphs with a IOMemory store and an identifier -</span>
<span class="s"><http://rdflib.net>:</span>
<span class="s"> >>> g = Graph('IOMemory', URIRef("http://rdflib.net"))</span>
<span class="s"> >>> g.identifier</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://rdflib.net')</span>
<span class="s"> >>> str(g) # doctest: +NORMALIZE_WHITESPACE</span>
<span class="s"> "<http://rdflib.net> a rdfg:Graph;rdflib:storage</span>
<span class="s"> [a rdflib:Store;rdfs:label 'IOMemory']."</span>
<span class="s">Creating a ConjunctiveGraph - The top level container for all named Graphs</span>
<span class="s">in a 'database':</span>
<span class="s"> >>> g = ConjunctiveGraph()</span>
<span class="s"> >>> str(g.default_context)</span>
<span class="s"> "[a rdfg:Graph;rdflib:storage [a rdflib:Store;rdfs:label 'IOMemory']]."</span>
<span class="s">Adding / removing reified triples to Graph and iterating over it directly or</span>
<span class="s">via triple pattern:</span>
<span class="s"> >>> g = Graph()</span>
<span class="s"> >>> statementId = BNode()</span>
<span class="s"> >>> print(len(g))</span>
<span class="s"> 0</span>
<span class="s"> >>> g.add((statementId, RDF.type, RDF.Statement))</span>
<span class="s"> >>> g.add((statementId, RDF.subject,</span>
<span class="s"> ... URIRef(</span><span class="si">%(u)s</span><span class="s">'http://rdflib.net/store/ConjunctiveGraph')))</span>
<span class="s"> >>> g.add((statementId, RDF.predicate, RDFS.label))</span>
<span class="s"> >>> g.add((statementId, RDF.object, Literal("Conjunctive Graph")))</span>
<span class="s"> >>> print(len(g))</span>
<span class="s"> 4</span>
<span class="s"> >>> for s, p, o in g:</span>
<span class="s"> ... print(type(s))</span>
<span class="s"> ...</span>
<span class="s"> <class 'rdflib.term.BNode'></span>
<span class="s"> <class 'rdflib.term.BNode'></span>
<span class="s"> <class 'rdflib.term.BNode'></span>
<span class="s"> <class 'rdflib.term.BNode'></span>
<span class="s"> >>> for s, p, o in g.triples((None, RDF.object, None)):</span>
<span class="s"> ... print(o)</span>
<span class="s"> ...</span>
<span class="s"> Conjunctive Graph</span>
<span class="s"> >>> g.remove((statementId, RDF.type, RDF.Statement))</span>
<span class="s"> >>> print(len(g))</span>
<span class="s"> 3</span>
<span class="s">``None`` terms in calls to :meth:`~rdflib.graph.Graph.triples` can be</span>
<span class="s">thought of as "open variables".</span>
<span class="s">Graph support set-theoretic operators, you can add/subtract graphs, as</span>
<span class="s">well as intersection (with multiplication operator g1*g2) and xor (g1</span>
<span class="s">^ g2).</span>
<span class="s">Note that BNode IDs are kept when doing set-theoretic operations, this</span>
<span class="s">may or may not be what you want. Two named graphs within the same</span>
<span class="s">application probably want share BNode IDs, two graphs with data from</span>
<span class="s">different sources probably not. If your BNode IDs are all generated</span>
<span class="s">by RDFLib they are UUIDs and unique.</span>
<span class="s"> >>> g1 = Graph()</span>
<span class="s"> >>> g2 = Graph()</span>
<span class="s"> >>> u = URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.com/foo')</span>
<span class="s"> >>> g1.add([u, RDFS.label, Literal('foo')])</span>
<span class="s"> >>> g1.add([u, RDFS.label, Literal('bar')])</span>
<span class="s"> >>> g2.add([u, RDFS.label, Literal('foo')])</span>
<span class="s"> >>> g2.add([u, RDFS.label, Literal('bing')])</span>
<span class="s"> >>> len(g1 + g2) # adds bing as label</span>
<span class="s"> 3</span>
<span class="s"> >>> len(g1 - g2) # removes foo</span>
<span class="s"> 1</span>
<span class="s"> >>> len(g1 * g2) # only foo</span>
<span class="s"> 1</span>
<span class="s"> >>> g1 += g2 # now g1 contains everything</span>
<span class="s">Graph Aggregation - ConjunctiveGraphs and ReadOnlyGraphAggregate within</span>
<span class="s">the same store:</span>
<span class="s"> >>> store = plugin.get('IOMemory', Store)()</span>
<span class="s"> >>> g1 = Graph(store)</span>
<span class="s"> >>> g2 = Graph(store)</span>
<span class="s"> >>> g3 = Graph(store)</span>
<span class="s"> >>> stmt1 = BNode()</span>
<span class="s"> >>> stmt2 = BNode()</span>
<span class="s"> >>> stmt3 = BNode()</span>
<span class="s"> >>> g1.add((stmt1, RDF.type, RDF.Statement))</span>
<span class="s"> >>> g1.add((stmt1, RDF.subject,</span>
<span class="s"> ... URIRef(</span><span class="si">%(u)s</span><span class="s">'http://rdflib.net/store/ConjunctiveGraph')))</span>
<span class="s"> >>> g1.add((stmt1, RDF.predicate, RDFS.label))</span>
<span class="s"> >>> g1.add((stmt1, RDF.object, Literal("Conjunctive Graph")))</span>
<span class="s"> >>> g2.add((stmt2, RDF.type, RDF.Statement))</span>
<span class="s"> >>> g2.add((stmt2, RDF.subject,</span>
<span class="s"> ... URIRef(</span><span class="si">%(u)s</span><span class="s">'http://rdflib.net/store/ConjunctiveGraph')))</span>
<span class="s"> >>> g2.add((stmt2, RDF.predicate, RDF.type))</span>
<span class="s"> >>> g2.add((stmt2, RDF.object, RDFS.Class))</span>
<span class="s"> >>> g3.add((stmt3, RDF.type, RDF.Statement))</span>
<span class="s"> >>> g3.add((stmt3, RDF.subject,</span>
<span class="s"> ... URIRef(</span><span class="si">%(u)s</span><span class="s">'http://rdflib.net/store/ConjunctiveGraph')))</span>
<span class="s"> >>> g3.add((stmt3, RDF.predicate, RDFS.comment))</span>
<span class="s"> >>> g3.add((stmt3, RDF.object, Literal(</span>
<span class="s"> ... "The top-level aggregate graph - The sum " +</span>
<span class="s"> ... "of all named graphs within a Store")))</span>
<span class="s"> >>> len(list(ConjunctiveGraph(store).subjects(RDF.type, RDF.Statement)))</span>
<span class="s"> 3</span>
<span class="s"> >>> len(list(ReadOnlyGraphAggregate([g1,g2]).subjects(</span>
<span class="s"> ... RDF.type, RDF.Statement)))</span>
<span class="s"> 2</span>
<span class="s">ConjunctiveGraphs have a :meth:`~rdflib.graph.ConjunctiveGraph.quads` method</span>
<span class="s">which returns quads instead of triples, where the fourth item is the Graph</span>
<span class="s">(or subclass thereof) instance in which the triple was asserted:</span>
<span class="s"> >>> uniqueGraphNames = set(</span>
<span class="s"> ... [graph.identifier for s, p, o, graph in ConjunctiveGraph(store</span>
<span class="s"> ... ).quads((None, RDF.predicate, None))])</span>
<span class="s"> >>> len(uniqueGraphNames)</span>
<span class="s"> 3</span>
<span class="s"> >>> unionGraph = ReadOnlyGraphAggregate([g1, g2])</span>
<span class="s"> >>> uniqueGraphNames = set(</span>
<span class="s"> ... [graph.identifier for s, p, o, graph in unionGraph.quads(</span>
<span class="s"> ... (None, RDF.predicate, None))])</span>
<span class="s"> >>> len(uniqueGraphNames)</span>
<span class="s"> 2</span>
<span class="s">Parsing N3 from a string</span>
<span class="s"> >>> g2 = Graph()</span>
<span class="s"> >>> src = '''</span>
<span class="s"> ... @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .</span>
<span class="s"> ... @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .</span>
<span class="s"> ... [ a rdf:Statement ;</span>
<span class="s"> ... rdf:subject <http://rdflib.net/store#ConjunctiveGraph>;</span>
<span class="s"> ... rdf:predicate rdfs:label;</span>
<span class="s"> ... rdf:object "Conjunctive Graph" ] .</span>
<span class="s"> ... '''</span>
<span class="s"> >>> g2 = g2.parse(data=src, format='n3')</span>
<span class="s"> >>> print(len(g2))</span>
<span class="s"> 4</span>
<span class="s">Using Namespace class:</span>
<span class="s"> >>> RDFLib = Namespace('http://rdflib.net/')</span>
<span class="s"> >>> RDFLib.ConjunctiveGraph</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://rdflib.net/ConjunctiveGraph')</span>
<span class="s"> >>> RDFLib['Graph']</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://rdflib.net/Graph')</span>
<span class="s">"""</span><span class="p">)</span>
<span class="kn">import</span> <span class="nn">logging</span>
<span class="n">_logger</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="n">__name__</span><span class="p">)</span>
<span class="c"># import md5</span>
<span class="kn">import</span> <span class="nn">random</span>
<span class="kn">import</span> <span class="nn">warnings</span>
<span class="kn">from</span> <span class="nn">hashlib</span> <span class="kn">import</span> <span class="n">md5</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">io</span> <span class="kn">import</span> <span class="n">BytesIO</span>
<span class="k">assert</span> <span class="n">BytesIO</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">cStringIO</span> <span class="kn">import</span> <span class="n">StringIO</span> <span class="k">as</span> <span class="n">BytesIO</span>
<span class="k">assert</span> <span class="n">BytesIO</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">StringIO</span> <span class="kn">import</span> <span class="n">StringIO</span> <span class="k">as</span> <span class="n">BytesIO</span>
<span class="k">assert</span> <span class="n">BytesIO</span>
<span class="kn">from</span> <span class="nn">rdflib.namespace</span> <span class="kn">import</span> <span class="n">RDF</span><span class="p">,</span> <span class="n">RDFS</span><span class="p">,</span> <span class="n">SKOS</span>
<span class="kn">from</span> <span class="nn">rdflib</span> <span class="kn">import</span> <span class="n">plugin</span><span class="p">,</span> <span class="n">exceptions</span><span class="p">,</span> <span class="n">query</span>
<span class="kn">from</span> <span class="nn">rdflib.term</span> <span class="kn">import</span> <span class="n">Node</span><span class="p">,</span> <span class="n">URIRef</span><span class="p">,</span> <span class="n">Genid</span>
<span class="kn">from</span> <span class="nn">rdflib.term</span> <span class="kn">import</span> <span class="n">BNode</span>
<span class="kn">import</span> <span class="nn">rdflib.term</span>
<span class="kn">from</span> <span class="nn">rdflib.paths</span> <span class="kn">import</span> <span class="n">Path</span>
<span class="kn">from</span> <span class="nn">rdflib.store</span> <span class="kn">import</span> <span class="n">Store</span>
<span class="kn">from</span> <span class="nn">rdflib.serializer</span> <span class="kn">import</span> <span class="n">Serializer</span>
<span class="kn">from</span> <span class="nn">rdflib.parser</span> <span class="kn">import</span> <span class="n">Parser</span>
<span class="kn">from</span> <span class="nn">rdflib.parser</span> <span class="kn">import</span> <span class="n">create_input_source</span>
<span class="kn">from</span> <span class="nn">rdflib.namespace</span> <span class="kn">import</span> <span class="n">NamespaceManager</span>
<span class="kn">from</span> <span class="nn">rdflib.resource</span> <span class="kn">import</span> <span class="n">Resource</span>
<span class="kn">from</span> <span class="nn">rdflib</span> <span class="kn">import</span> <span class="n">py3compat</span>
<span class="n">b</span> <span class="o">=</span> <span class="n">py3compat</span><span class="o">.</span><span class="n">b</span>
<span class="kn">import</span> <span class="nn">os</span>
<span class="kn">import</span> <span class="nn">shutil</span>
<span class="kn">import</span> <span class="nn">tempfile</span>
<span class="kn">from</span> <span class="nn">urlparse</span> <span class="kn">import</span> <span class="n">urlparse</span>
<span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span>
<span class="s">'Graph'</span><span class="p">,</span> <span class="s">'ConjunctiveGraph'</span><span class="p">,</span> <span class="s">'QuotedGraph'</span><span class="p">,</span> <span class="s">'Seq'</span><span class="p">,</span>
<span class="s">'ModificationException'</span><span class="p">,</span> <span class="s">'Dataset'</span><span class="p">,</span>
<span class="s">'UnSupportedAggregateOperation'</span><span class="p">,</span> <span class="s">'ReadOnlyGraphAggregate'</span><span class="p">]</span>
<div class="viewcode-block" id="Graph"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph">[docs]</a><span class="k">class</span> <span class="nc">Graph</span><span class="p">(</span><span class="n">Node</span><span class="p">):</span>
<span class="sd">"""An RDF Graph</span>
<span class="sd"> The constructor accepts one argument, the 'store'</span>
<span class="sd"> that will be used to store the graph data (see the 'store'</span>
<span class="sd"> package for stores currently shipped with rdflib).</span>
<span class="sd"> Stores can be context-aware or unaware. Unaware stores take up</span>
<span class="sd"> (some) less space but cannot support features that require</span>
<span class="sd"> context, such as true merging/demerging of sub-graphs and</span>
<span class="sd"> provenance.</span>
<span class="sd"> The Graph constructor can take an identifier which identifies the Graph</span>
<span class="sd"> by name. If none is given, the graph is assigned a BNode for its</span>
<span class="sd"> identifier.</span>
<span class="sd"> For more on named graphs, see: http://www.w3.org/2004/03/trix/</span>
<span class="sd"> """</span>
<div class="viewcode-block" id="Graph.__init__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__init__">[docs]</a> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">store</span><span class="o">=</span><span class="s">'default'</span><span class="p">,</span> <span class="n">identifier</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
<span class="n">namespace_manager</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="nb">super</span><span class="p">(</span><span class="n">Graph</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">__init__</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__identifier</span> <span class="o">=</span> <span class="n">identifier</span> <span class="ow">or</span> <span class="n">BNode</span><span class="p">()</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">__identifier</span><span class="p">,</span> <span class="n">Node</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__identifier</span> <span class="o">=</span> <span class="n">URIRef</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">__identifier</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">store</span><span class="p">,</span> <span class="n">Store</span><span class="p">):</span>
<span class="c"># TODO: error handling</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__store</span> <span class="o">=</span> <span class="n">store</span> <span class="o">=</span> <span class="n">plugin</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">store</span><span class="p">,</span> <span class="n">Store</span><span class="p">)()</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__store</span> <span class="o">=</span> <span class="n">store</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__namespace_manager</span> <span class="o">=</span> <span class="n">namespace_manager</span>
<span class="bp">self</span><span class="o">.</span><span class="n">context_aware</span> <span class="o">=</span> <span class="bp">False</span>
<span class="bp">self</span><span class="o">.</span><span class="n">formula_aware</span> <span class="o">=</span> <span class="bp">False</span>
<span class="bp">self</span><span class="o">.</span><span class="n">default_union</span> <span class="o">=</span> <span class="bp">False</span>
</div>
<span class="k">def</span> <span class="nf">__get_store</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__store</span>
<span class="n">store</span> <span class="o">=</span> <span class="nb">property</span><span class="p">(</span><span class="n">__get_store</span><span class="p">)</span> <span class="c"># read-only attr</span>
<span class="k">def</span> <span class="nf">__get_identifier</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__identifier</span>
<span class="n">identifier</span> <span class="o">=</span> <span class="nb">property</span><span class="p">(</span><span class="n">__get_identifier</span><span class="p">)</span> <span class="c"># read-only attr</span>
<span class="k">def</span> <span class="nf">_get_namespace_manager</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">__namespace_manager</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__namespace_manager</span> <span class="o">=</span> <span class="n">NamespaceManager</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__namespace_manager</span>
<span class="k">def</span> <span class="nf">_set_namespace_manager</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">nm</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__namespace_manager</span> <span class="o">=</span> <span class="n">nm</span>
<span class="n">namespace_manager</span> <span class="o">=</span> <span class="nb">property</span><span class="p">(</span><span class="n">_get_namespace_manager</span><span class="p">,</span>
<span class="n">_set_namespace_manager</span><span class="p">,</span>
<span class="n">doc</span><span class="o">=</span><span class="s">"this graph's namespace-manager"</span><span class="p">)</span>
<div class="viewcode-block" id="Graph.__repr__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__repr__">[docs]</a> <span class="k">def</span> <span class="nf">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="s">"<Graph identifier=</span><span class="si">%s</span><span class="s"> (</span><span class="si">%s</span><span class="s">)>"</span> <span class="o">%</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">identifier</span><span class="p">,</span> <span class="nb">type</span><span class="p">(</span><span class="bp">self</span><span class="p">))</span>
</div>
<div class="viewcode-block" id="Graph.__str__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__str__">[docs]</a> <span class="k">def</span> <span class="nf">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">identifier</span><span class="p">,</span> <span class="n">URIRef</span><span class="p">):</span>
<span class="k">return</span> <span class="p">(</span><span class="s">"</span><span class="si">%s</span><span class="s"> a rdfg:Graph;rdflib:storage "</span> <span class="o">+</span>
<span class="s">"[a rdflib:Store;rdfs:label '</span><span class="si">%s</span><span class="s">']."</span><span class="p">)</span> <span class="o">%</span> <span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">identifier</span><span class="o">.</span><span class="n">n3</span><span class="p">(),</span>
<span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__name__</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="p">(</span><span class="s">"[a rdfg:Graph;rdflib:storage "</span> <span class="o">+</span>
<span class="s">"[a rdflib:Store;rdfs:label '</span><span class="si">%s</span><span class="s">']]."</span><span class="p">)</span> <span class="o">%</span> <span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__name__</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.toPython"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.toPython">[docs]</a> <span class="k">def</span> <span class="nf">toPython</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span>
</div>
<div class="viewcode-block" id="Graph.destroy"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.destroy">[docs]</a> <span class="k">def</span> <span class="nf">destroy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">configuration</span><span class="p">):</span>
<span class="sd">"""Destroy the store identified by `configuration` if supported"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__store</span><span class="o">.</span><span class="n">destroy</span><span class="p">(</span><span class="n">configuration</span><span class="p">)</span>
<span class="c"># Transactional interfaces (optional)</span></div>
<div class="viewcode-block" id="Graph.commit"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.commit">[docs]</a> <span class="k">def</span> <span class="nf">commit</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Commits active transactions"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__store</span><span class="o">.</span><span class="n">commit</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="Graph.rollback"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.rollback">[docs]</a> <span class="k">def</span> <span class="nf">rollback</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Rollback active transactions"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__store</span><span class="o">.</span><span class="n">rollback</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="Graph.open"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.open">[docs]</a> <span class="k">def</span> <span class="nf">open</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">configuration</span><span class="p">,</span> <span class="n">create</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
<span class="sd">"""Open the graph store</span>
<span class="sd"> Might be necessary for stores that require opening a connection to a</span>
<span class="sd"> database or acquiring some resource.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__store</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="n">configuration</span><span class="p">,</span> <span class="n">create</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.close"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.close">[docs]</a> <span class="k">def</span> <span class="nf">close</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">commit_pending_transaction</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
<span class="sd">"""Close the graph store</span>
<span class="sd"> Might be necessary for stores that require closing a connection to a</span>
<span class="sd"> database or releasing some resource.</span>
<span class="sd"> """</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__store</span><span class="o">.</span><span class="n">close</span><span class="p">(</span>
<span class="n">commit_pending_transaction</span><span class="o">=</span><span class="n">commit_pending_transaction</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.add"><a class="viewcode-back" href="../../intro_to_creating_rdf.html#rdflib.graph.Graph.add">[docs]</a> <span class="k">def</span> <span class="nf">add</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)):</span>
<span class="sd">"""Add a triple with self as context"""</span>
<span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">Node</span><span class="p">),</span> \
<span class="s">"Subject </span><span class="si">%s</span><span class="s"> must be an rdflib term"</span> <span class="o">%</span> <span class="p">(</span><span class="n">s</span><span class="p">,)</span>
<span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">Node</span><span class="p">),</span> \
<span class="s">"Predicate </span><span class="si">%s</span><span class="s"> must be an rdflib term"</span> <span class="o">%</span> <span class="p">(</span><span class="n">p</span><span class="p">,)</span>
<span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">o</span><span class="p">,</span> <span class="n">Node</span><span class="p">),</span> \
<span class="s">"Object </span><span class="si">%s</span><span class="s"> must be an rdflib term"</span> <span class="o">%</span> <span class="p">(</span><span class="n">o</span><span class="p">,)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__store</span><span class="o">.</span><span class="n">add</span><span class="p">((</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">),</span> <span class="bp">self</span><span class="p">,</span> <span class="n">quoted</span><span class="o">=</span><span class="bp">False</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.addN"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.addN">[docs]</a> <span class="k">def</span> <span class="nf">addN</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">quads</span><span class="p">):</span>
<span class="sd">"""Add a sequence of triple with context"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__store</span><span class="o">.</span><span class="n">addN</span><span class="p">((</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">,</span> <span class="n">c</span><span class="p">)</span> <span class="k">for</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">,</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">quads</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">c</span><span class="p">,</span> <span class="n">Graph</span><span class="p">)</span>
<span class="ow">and</span> <span class="n">c</span><span class="o">.</span><span class="n">identifier</span> <span class="ow">is</span> <span class="bp">self</span><span class="o">.</span><span class="n">identifier</span>
<span class="ow">and</span> <span class="n">_assertnode</span><span class="p">(</span><span class="n">s</span><span class="p">,</span><span class="n">p</span><span class="p">,</span><span class="n">o</span><span class="p">)</span>
<span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.remove"><a class="viewcode-back" href="../../intro_to_creating_rdf.html#rdflib.graph.Graph.remove">[docs]</a> <span class="k">def</span> <span class="nf">remove</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)):</span>
<span class="sd">"""Remove a triple from the graph</span>
<span class="sd"> If the triple does not provide a context attribute, removes the triple</span>
<span class="sd"> from all contexts.</span>
<span class="sd"> """</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__store</span><span class="o">.</span><span class="n">remove</span><span class="p">((</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">),</span> <span class="n">context</span><span class="o">=</span><span class="bp">self</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.triples"><a class="viewcode-back" href="../../intro_to_graphs.html#rdflib.graph.Graph.triples">[docs]</a> <span class="k">def</span> <span class="nf">triples</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)):</span>
<span class="sd">"""Generator over the triple store</span>
<span class="sd"> Returns triples that match the given triple pattern. If triple pattern</span>
<span class="sd"> does not provide a context, all contexts will be searched.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">Path</span><span class="p">):</span>
<span class="k">for</span> <span class="n">_s</span><span class="p">,</span> <span class="n">_o</span> <span class="ow">in</span> <span class="n">p</span><span class="o">.</span><span class="n">eval</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">s</span><span class="p">,</span> <span class="n">o</span><span class="p">):</span>
<span class="k">yield</span> <span class="p">(</span><span class="n">_s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">_o</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">for</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">),</span> <span class="n">cg</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">__store</span><span class="o">.</span><span class="n">triples</span><span class="p">((</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">),</span> <span class="n">context</span><span class="o">=</span><span class="bp">self</span><span class="p">):</span>
<span class="k">yield</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span>
</div>
<span class="nd">@py3compat.format_doctest_out</span>
<div class="viewcode-block" id="Graph.__getitem__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__getitem__">[docs]</a> <span class="k">def</span> <span class="nf">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">item</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> A graph can be "sliced" as a shortcut for the triples method</span>
<span class="sd"> The python slice syntax is (ab)used for specifying triples.</span>
<span class="sd"> A generator over matches is returned,</span>
<span class="sd"> the returned tuples include only the parts not given</span>
<span class="sd"> >>> import rdflib</span>
<span class="sd"> >>> g = rdflib.Graph()</span>
<span class="sd"> >>> g.add((rdflib.URIRef('urn:bob'), rdflib.RDFS.label, rdflib.Literal('Bob')))</span>
<span class="sd"> >>> list(g[rdflib.URIRef('urn:bob')]) # all triples about bob</span>
<span class="sd"> [(rdflib.term.URIRef(%(u)s'http://www.w3.org/2000/01/rdf-schema#label'), rdflib.term.Literal(%(u)s'Bob'))]</span>
<span class="sd"> >>> list(g[:rdflib.RDFS.label]) # all label triples</span>
<span class="sd"> [(rdflib.term.URIRef(%(u)s'urn:bob'), rdflib.term.Literal(%(u)s'Bob'))]</span>
<span class="sd"> >>> list(g[::rdflib.Literal('Bob')]) # all triples with bob as object</span>
<span class="sd"> [(rdflib.term.URIRef(%(u)s'urn:bob'), rdflib.term.URIRef(%(u)s'http://www.w3.org/2000/01/rdf-schema#label'))]</span>
<span class="sd"> Combined with SPARQL paths, more complex queries can be</span>
<span class="sd"> written concisely:</span>
<span class="sd"> Name of all Bobs friends:</span>
<span class="sd"> g[bob : FOAF.knows/FOAF.name ]</span>
<span class="sd"> Some label for Bob:</span>
<span class="sd"> g[bob : DC.title|FOAF.name|RDFS.label]</span>
<span class="sd"> All friends and friends of friends of Bob</span>
<span class="sd"> g[bob : FOAF.knows * '+']</span>
<span class="sd"> etc.</span>
<span class="sd"> .. versionadded:: 4.0</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">item</span><span class="p">,</span> <span class="nb">slice</span><span class="p">):</span>
<span class="n">s</span><span class="p">,</span><span class="n">p</span><span class="p">,</span><span class="n">o</span><span class="o">=</span><span class="n">item</span><span class="o">.</span><span class="n">start</span><span class="p">,</span><span class="n">item</span><span class="o">.</span><span class="n">stop</span><span class="p">,</span><span class="n">item</span><span class="o">.</span><span class="n">step</span>
<span class="k">if</span> <span class="n">s</span> <span class="ow">is</span> <span class="bp">None</span> <span class="ow">and</span> <span class="n">p</span> <span class="ow">is</span> <span class="bp">None</span> <span class="ow">and</span> <span class="n">o</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">triples</span><span class="p">((</span><span class="n">s</span><span class="p">,</span><span class="n">p</span><span class="p">,</span><span class="n">o</span><span class="p">))</span>
<span class="k">elif</span> <span class="n">s</span> <span class="ow">is</span> <span class="bp">None</span> <span class="ow">and</span> <span class="n">p</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">subject_predicates</span><span class="p">(</span><span class="n">o</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">s</span> <span class="ow">is</span> <span class="bp">None</span> <span class="ow">and</span> <span class="n">o</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">subject_objects</span><span class="p">(</span><span class="n">p</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">p</span> <span class="ow">is</span> <span class="bp">None</span> <span class="ow">and</span> <span class="n">o</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">predicate_objects</span><span class="p">(</span><span class="n">s</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">s</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">subjects</span><span class="p">(</span><span class="n">p</span><span class="p">,</span><span class="n">o</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">p</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">predicates</span><span class="p">(</span><span class="n">s</span><span class="p">,</span><span class="n">o</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">o</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">objects</span><span class="p">(</span><span class="n">s</span><span class="p">,</span><span class="n">p</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="c"># all given</span>
<span class="k">return</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span><span class="n">p</span><span class="p">,</span><span class="n">o</span><span class="p">)</span> <span class="ow">in</span> <span class="bp">self</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">item</span><span class="p">,</span> <span class="p">(</span><span class="n">Path</span><span class="p">,</span><span class="n">Node</span><span class="p">)):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">predicate_objects</span><span class="p">(</span><span class="n">item</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s">"You can only index a graph by a single rdflib term or path, or a slice of rdflib terms."</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.__len__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__len__">[docs]</a> <span class="k">def</span> <span class="nf">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Returns the number of triples in the graph</span>
<span class="sd"> If context is specified then the number of triples in the context is</span>
<span class="sd"> returned instead.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__store</span><span class="o">.</span><span class="n">__len__</span><span class="p">(</span><span class="n">context</span><span class="o">=</span><span class="bp">self</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.__iter__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__iter__">[docs]</a> <span class="k">def</span> <span class="nf">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Iterates over all triples in the store"""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">triples</span><span class="p">((</span><span class="bp">None</span><span class="p">,</span> <span class="bp">None</span><span class="p">,</span> <span class="bp">None</span><span class="p">))</span>
</div>
<div class="viewcode-block" id="Graph.__contains__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__contains__">[docs]</a> <span class="k">def</span> <span class="nf">__contains__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">triple</span><span class="p">):</span>
<span class="sd">"""Support for 'triple in graph' syntax"""</span>
<span class="k">for</span> <span class="n">triple</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">triples</span><span class="p">(</span><span class="n">triple</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">True</span>
<span class="k">return</span> <span class="bp">False</span>
</div>
<div class="viewcode-block" id="Graph.__hash__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__hash__">[docs]</a> <span class="k">def</span> <span class="nf">__hash__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">hash</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">identifier</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.md5_term_hash"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.md5_term_hash">[docs]</a> <span class="k">def</span> <span class="nf">md5_term_hash</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">d</span> <span class="o">=</span> <span class="n">md5</span><span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">identifier</span><span class="p">))</span>
<span class="n">d</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="s">"G"</span><span class="p">)</span>
<span class="k">return</span> <span class="n">d</span><span class="o">.</span><span class="n">hexdigest</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="Graph.__cmp__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__cmp__">[docs]</a> <span class="k">def</span> <span class="nf">__cmp__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">if</span> <span class="n">other</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">return</span> <span class="o">-</span><span class="mi">1</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="n">Graph</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">cmp</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">identifier</span><span class="p">,</span> <span class="n">other</span><span class="o">.</span><span class="n">identifier</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="c"># Note if None is considered equivalent to owl:Nothing</span>
<span class="c"># Then perhaps a graph with length 0 should be considered</span>
<span class="c"># equivalent to None (if compared to it)?</span>
<span class="k">return</span> <span class="mi">1</span>
</div>
<div class="viewcode-block" id="Graph.__eq__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__eq__">[docs]</a> <span class="k">def</span> <span class="nf">__eq__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="n">Graph</span><span class="p">)</span> \
<span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">identifier</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">identifier</span>
</div>
<div class="viewcode-block" id="Graph.__lt__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__lt__">[docs]</a> <span class="k">def</span> <span class="nf">__lt__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">return</span> <span class="p">(</span><span class="n">other</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">)</span> \
<span class="ow">or</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="n">Graph</span><span class="p">)</span>
<span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">identifier</span> <span class="o"><</span> <span class="n">other</span><span class="o">.</span><span class="n">identifier</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.__le__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__le__">[docs]</a> <span class="k">def</span> <span class="nf">__le__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span> <span class="o"><</span> <span class="n">other</span> <span class="ow">or</span> <span class="bp">self</span> <span class="o">==</span> <span class="n">other</span>
</div>
<div class="viewcode-block" id="Graph.__gt__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__gt__">[docs]</a> <span class="k">def</span> <span class="nf">__gt__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">return</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="n">Graph</span><span class="p">)</span>
<span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">identifier</span> <span class="o">></span> <span class="n">other</span><span class="o">.</span><span class="n">identifier</span><span class="p">)</span> \
<span class="ow">or</span> <span class="p">(</span><span class="n">other</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.__ge__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__ge__">[docs]</a> <span class="k">def</span> <span class="nf">__ge__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span> <span class="o">></span> <span class="n">other</span> <span class="ow">or</span> <span class="bp">self</span> <span class="o">==</span> <span class="n">other</span>
</div>
<div class="viewcode-block" id="Graph.__iadd__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__iadd__">[docs]</a> <span class="k">def</span> <span class="nf">__iadd__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""Add all triples in Graph other to Graph.</span>
<span class="sd"> BNode IDs are not changed."""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">addN</span><span class="p">((</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span> <span class="k">for</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span> <span class="ow">in</span> <span class="n">other</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span>
</div>
<div class="viewcode-block" id="Graph.__isub__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__isub__">[docs]</a> <span class="k">def</span> <span class="nf">__isub__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""Subtract all triples in Graph other from Graph.</span>
<span class="sd"> BNode IDs are not changed."""</span>
<span class="k">for</span> <span class="n">triple</span> <span class="ow">in</span> <span class="n">other</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="n">triple</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span>
</div>
<div class="viewcode-block" id="Graph.__add__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__add__">[docs]</a> <span class="k">def</span> <span class="nf">__add__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""Set-theoretic union</span>
<span class="sd"> BNode IDs are not changed."""</span>
<span class="n">retval</span> <span class="o">=</span> <span class="n">Graph</span><span class="p">()</span>
<span class="k">for</span> <span class="p">(</span><span class="n">prefix</span><span class="p">,</span> <span class="n">uri</span><span class="p">)</span> <span class="ow">in</span> <span class="nb">set</span><span class="p">(</span>
<span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">namespaces</span><span class="p">())</span> <span class="o">+</span> <span class="nb">list</span><span class="p">(</span><span class="n">other</span><span class="o">.</span><span class="n">namespaces</span><span class="p">())):</span>
<span class="n">retval</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span><span class="n">prefix</span><span class="p">,</span> <span class="n">uri</span><span class="p">)</span>
<span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="bp">self</span><span class="p">:</span>
<span class="n">retval</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">x</span><span class="p">)</span>
<span class="k">for</span> <span class="n">y</span> <span class="ow">in</span> <span class="n">other</span><span class="p">:</span>
<span class="n">retval</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">y</span><span class="p">)</span>
<span class="k">return</span> <span class="n">retval</span>
</div>
<div class="viewcode-block" id="Graph.__mul__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__mul__">[docs]</a> <span class="k">def</span> <span class="nf">__mul__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""Set-theoretic intersection.</span>
<span class="sd"> BNode IDs are not changed."""</span>
<span class="n">retval</span> <span class="o">=</span> <span class="n">Graph</span><span class="p">()</span>
<span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">other</span><span class="p">:</span>
<span class="k">if</span> <span class="n">x</span> <span class="ow">in</span> <span class="bp">self</span><span class="p">:</span>
<span class="n">retval</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">x</span><span class="p">)</span>
<span class="k">return</span> <span class="n">retval</span>
</div>
<div class="viewcode-block" id="Graph.__sub__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__sub__">[docs]</a> <span class="k">def</span> <span class="nf">__sub__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""Set-theoretic difference.</span>
<span class="sd"> BNode IDs are not changed."""</span>
<span class="n">retval</span> <span class="o">=</span> <span class="n">Graph</span><span class="p">()</span>
<span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="bp">self</span><span class="p">:</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">other</span><span class="p">:</span>
<span class="n">retval</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">x</span><span class="p">)</span>
<span class="k">return</span> <span class="n">retval</span>
</div>
<div class="viewcode-block" id="Graph.__xor__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__xor__">[docs]</a> <span class="k">def</span> <span class="nf">__xor__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""Set-theoretic XOR.</span>
<span class="sd"> BNode IDs are not changed."""</span>
<span class="k">return</span> <span class="p">(</span><span class="bp">self</span> <span class="o">-</span> <span class="n">other</span><span class="p">)</span> <span class="o">+</span> <span class="p">(</span><span class="n">other</span> <span class="o">-</span> <span class="bp">self</span><span class="p">)</span>
</div>
<span class="n">__or__</span> <span class="o">=</span> <span class="n">__add__</span>
<span class="n">__and__</span> <span class="o">=</span> <span class="n">__mul__</span>
<span class="c"># Conv. methods</span>
<div class="viewcode-block" id="Graph.set"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.set">[docs]</a> <span class="k">def</span> <span class="nf">set</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">triple</span><span class="p">):</span>
<span class="sd">"""Convenience method to update the value of object</span>
<span class="sd"> Remove any existing triples for subject and predicate before adding</span>
<span class="sd"> (subject, predicate, object).</span>
<span class="sd"> """</span>
<span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="n">predicate</span><span class="p">,</span> <span class="nb">object</span><span class="p">)</span> <span class="o">=</span> <span class="n">triple</span>
<span class="bp">self</span><span class="o">.</span><span class="n">remove</span><span class="p">((</span><span class="n">subject</span><span class="p">,</span> <span class="n">predicate</span><span class="p">,</span> <span class="bp">None</span><span class="p">))</span>
<span class="bp">self</span><span class="o">.</span><span class="n">add</span><span class="p">((</span><span class="n">subject</span><span class="p">,</span> <span class="n">predicate</span><span class="p">,</span> <span class="nb">object</span><span class="p">))</span>
</div>
<div class="viewcode-block" id="Graph.subjects"><a class="viewcode-back" href="../../intro_to_graphs.html#rdflib.graph.Graph.subjects">[docs]</a> <span class="k">def</span> <span class="nf">subjects</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">predicate</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="nb">object</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">"""A generator of subjects with the given predicate and object"""</span>
<span class="k">for</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">triples</span><span class="p">((</span><span class="bp">None</span><span class="p">,</span> <span class="n">predicate</span><span class="p">,</span> <span class="nb">object</span><span class="p">)):</span>
<span class="k">yield</span> <span class="n">s</span>
</div>
<div class="viewcode-block" id="Graph.predicates"><a class="viewcode-back" href="../../intro_to_graphs.html#rdflib.graph.Graph.predicates">[docs]</a> <span class="k">def</span> <span class="nf">predicates</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="nb">object</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">"""A generator of predicates with the given subject and object"""</span>
<span class="k">for</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">triples</span><span class="p">((</span><span class="n">subject</span><span class="p">,</span> <span class="bp">None</span><span class="p">,</span> <span class="nb">object</span><span class="p">)):</span>
<span class="k">yield</span> <span class="n">p</span>
</div>
<div class="viewcode-block" id="Graph.objects"><a class="viewcode-back" href="../../intro_to_graphs.html#rdflib.graph.Graph.objects">[docs]</a> <span class="k">def</span> <span class="nf">objects</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">predicate</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">"""A generator of objects with the given subject and predicate"""</span>
<span class="k">for</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">triples</span><span class="p">((</span><span class="n">subject</span><span class="p">,</span> <span class="n">predicate</span><span class="p">,</span> <span class="bp">None</span><span class="p">)):</span>
<span class="k">yield</span> <span class="n">o</span>
</div>
<div class="viewcode-block" id="Graph.subject_predicates"><a class="viewcode-back" href="../../intro_to_graphs.html#rdflib.graph.Graph.subject_predicates">[docs]</a> <span class="k">def</span> <span class="nf">subject_predicates</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="nb">object</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">"""A generator of (subject, predicate) tuples for the given object"""</span>
<span class="k">for</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">triples</span><span class="p">((</span><span class="bp">None</span><span class="p">,</span> <span class="bp">None</span><span class="p">,</span> <span class="nb">object</span><span class="p">)):</span>
<span class="k">yield</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span>
</div>
<div class="viewcode-block" id="Graph.subject_objects"><a class="viewcode-back" href="../../intro_to_graphs.html#rdflib.graph.Graph.subject_objects">[docs]</a> <span class="k">def</span> <span class="nf">subject_objects</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">predicate</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">"""A generator of (subject, object) tuples for the given predicate"""</span>
<span class="k">for</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">triples</span><span class="p">((</span><span class="bp">None</span><span class="p">,</span> <span class="n">predicate</span><span class="p">,</span> <span class="bp">None</span><span class="p">)):</span>
<span class="k">yield</span> <span class="n">s</span><span class="p">,</span> <span class="n">o</span>
</div>
<div class="viewcode-block" id="Graph.predicate_objects"><a class="viewcode-back" href="../../intro_to_graphs.html#rdflib.graph.Graph.predicate_objects">[docs]</a> <span class="k">def</span> <span class="nf">predicate_objects</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">"""A generator of (predicate, object) tuples for the given subject"""</span>
<span class="k">for</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">triples</span><span class="p">((</span><span class="n">subject</span><span class="p">,</span> <span class="bp">None</span><span class="p">,</span> <span class="bp">None</span><span class="p">)):</span>
<span class="k">yield</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span>
</div>
<div class="viewcode-block" id="Graph.triples_choices"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.triples_choices">[docs]</a> <span class="k">def</span> <span class="nf">triples_choices</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="n">predicate</span><span class="p">,</span> <span class="n">object_</span><span class="p">),</span> <span class="n">context</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="k">for</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">),</span> <span class="n">cg</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">triples_choices</span><span class="p">(</span>
<span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="n">predicate</span><span class="p">,</span> <span class="n">object_</span><span class="p">),</span> <span class="n">context</span><span class="o">=</span><span class="bp">self</span><span class="p">):</span>
<span class="k">yield</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.value"><a class="viewcode-back" href="../../intro_to_graphs.html#rdflib.graph.Graph.value">[docs]</a> <span class="k">def</span> <span class="nf">value</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">predicate</span><span class="o">=</span><span class="n">RDF</span><span class="o">.</span><span class="n">value</span><span class="p">,</span> <span class="nb">object</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
<span class="n">default</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="nb">any</span><span class="o">=</span><span class="bp">True</span><span class="p">):</span>
<span class="sd">"""Get a value for a pair of two criteria</span>
<span class="sd"> Exactly one of subject, predicate, object must be None. Useful if one</span>
<span class="sd"> knows that there may only be one value.</span>
<span class="sd"> It is one of those situations that occur a lot, hence this</span>
<span class="sd"> 'macro' like utility</span>
<span class="sd"> Parameters:</span>
<span class="sd"> subject, predicate, object -- exactly one must be None</span>
<span class="sd"> default -- value to be returned if no values found</span>
<span class="sd"> any -- if True, return any value in the case there is more than one,</span>
<span class="sd"> else, raise UniquenessError</span>
<span class="sd"> """</span>
<span class="n">retval</span> <span class="o">=</span> <span class="n">default</span>
<span class="k">if</span> <span class="p">(</span><span class="n">subject</span> <span class="ow">is</span> <span class="bp">None</span> <span class="ow">and</span> <span class="n">predicate</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">)</span> <span class="ow">or</span> \
<span class="p">(</span><span class="n">subject</span> <span class="ow">is</span> <span class="bp">None</span> <span class="ow">and</span> <span class="nb">object</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">)</span> <span class="ow">or</span> \
<span class="p">(</span><span class="n">predicate</span> <span class="ow">is</span> <span class="bp">None</span> <span class="ow">and</span> <span class="nb">object</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">None</span>
<span class="k">if</span> <span class="nb">object</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">values</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">objects</span><span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="n">predicate</span><span class="p">)</span>
<span class="k">if</span> <span class="n">subject</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">values</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">subjects</span><span class="p">(</span><span class="n">predicate</span><span class="p">,</span> <span class="nb">object</span><span class="p">)</span>
<span class="k">if</span> <span class="n">predicate</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">values</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">predicates</span><span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="nb">object</span><span class="p">)</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">retval</span> <span class="o">=</span> <span class="n">values</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">except</span> <span class="ne">StopIteration</span><span class="p">:</span>
<span class="n">retval</span> <span class="o">=</span> <span class="n">default</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">if</span> <span class="nb">any</span> <span class="ow">is</span> <span class="bp">False</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">values</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="n">msg</span> <span class="o">=</span> <span class="p">(</span><span class="s">"While trying to find a value for (</span><span class="si">%s</span><span class="s">, </span><span class="si">%s</span><span class="s">, </span><span class="si">%s</span><span class="s">) the"</span>
<span class="s">" following multiple values where found:</span><span class="se">\n</span><span class="s">"</span> <span class="o">%</span>
<span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="n">predicate</span><span class="p">,</span> <span class="nb">object</span><span class="p">))</span>
<span class="n">triples</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">triples</span><span class="p">(</span>
<span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="n">predicate</span><span class="p">,</span> <span class="nb">object</span><span class="p">),</span> <span class="bp">None</span><span class="p">)</span>
<span class="k">for</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">),</span> <span class="n">contexts</span> <span class="ow">in</span> <span class="n">triples</span><span class="p">:</span>
<span class="n">msg</span> <span class="o">+=</span> <span class="s">"(</span><span class="si">%s</span><span class="s">, </span><span class="si">%s</span><span class="s">, </span><span class="si">%s</span><span class="s">)</span><span class="se">\n</span><span class="s"> (contexts: </span><span class="si">%s</span><span class="s">)</span><span class="se">\n</span><span class="s">"</span> <span class="o">%</span> <span class="p">(</span>
<span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">,</span> <span class="nb">list</span><span class="p">(</span><span class="n">contexts</span><span class="p">))</span>
<span class="k">raise</span> <span class="n">exceptions</span><span class="o">.</span><span class="n">UniquenessError</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">StopIteration</span><span class="p">:</span>
<span class="k">pass</span>
<span class="k">return</span> <span class="n">retval</span>
</div>
<div class="viewcode-block" id="Graph.label"><a class="viewcode-back" href="../../intro_to_graphs.html#rdflib.graph.Graph.label">[docs]</a> <span class="k">def</span> <span class="nf">label</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="s">''</span><span class="p">):</span>
<span class="sd">"""Query for the RDFS.label of the subject</span>
<span class="sd"> Return default if no label exists or any label if multiple exist.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">subject</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">return</span> <span class="n">default</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">value</span><span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="n">RDFS</span><span class="o">.</span><span class="n">label</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="n">default</span><span class="p">,</span> <span class="nb">any</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
</div>
<span class="nd">@py3compat.format_doctest_out</span>
<div class="viewcode-block" id="Graph.preferredLabel"><a class="viewcode-back" href="../../intro_to_graphs.html#rdflib.graph.Graph.preferredLabel">[docs]</a> <span class="k">def</span> <span class="nf">preferredLabel</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="p">,</span> <span class="n">lang</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
<span class="n">labelProperties</span><span class="o">=</span><span class="p">(</span><span class="n">SKOS</span><span class="o">.</span><span class="n">prefLabel</span><span class="p">,</span> <span class="n">RDFS</span><span class="o">.</span><span class="n">label</span><span class="p">)):</span>
<span class="sd">"""</span>
<span class="sd"> Find the preferred label for subject.</span>
<span class="sd"> By default prefers skos:prefLabels over rdfs:labels. In case at least</span>
<span class="sd"> one prefLabel is found returns those, else returns labels. In case a</span>
<span class="sd"> language string (e.g., 'en', 'de' or even '' for no lang-tagged</span>
<span class="sd"> literals) is given, only such labels will be considered.</span>
<span class="sd"> Return a list of (labelProp, label) pairs, where labelProp is either</span>
<span class="sd"> skos:prefLabel or rdfs:label.</span>
<span class="sd"> >>> from rdflib import ConjunctiveGraph, URIRef, RDFS, Literal</span>
<span class="sd"> >>> from rdflib.namespace import SKOS</span>
<span class="sd"> >>> from pprint import pprint</span>
<span class="sd"> >>> g = ConjunctiveGraph()</span>
<span class="sd"> >>> u = URIRef(%(u)s'http://example.com/foo')</span>
<span class="sd"> >>> g.add([u, RDFS.label, Literal('foo')])</span>
<span class="sd"> >>> g.add([u, RDFS.label, Literal('bar')])</span>
<span class="sd"> >>> pprint(sorted(g.preferredLabel(u)))</span>
<span class="sd"> [(rdflib.term.URIRef(%(u)s'http://www.w3.org/2000/01/rdf-schema#label'),</span>
<span class="sd"> rdflib.term.Literal(%(u)s'bar')),</span>
<span class="sd"> (rdflib.term.URIRef(%(u)s'http://www.w3.org/2000/01/rdf-schema#label'),</span>
<span class="sd"> rdflib.term.Literal(%(u)s'foo'))]</span>
<span class="sd"> >>> g.add([u, SKOS.prefLabel, Literal('bla')])</span>
<span class="sd"> >>> pprint(g.preferredLabel(u))</span>
<span class="sd"> [(rdflib.term.URIRef(%(u)s'http://www.w3.org/2004/02/skos/core#prefLabel'),</span>
<span class="sd"> rdflib.term.Literal(%(u)s'bla'))]</span>
<span class="sd"> >>> g.add([u, SKOS.prefLabel, Literal('blubb', lang='en')])</span>
<span class="sd"> >>> sorted(g.preferredLabel(u)) #doctest: +NORMALIZE_WHITESPACE</span>
<span class="sd"> [(rdflib.term.URIRef(%(u)s'http://www.w3.org/2004/02/skos/core#prefLabel'),</span>
<span class="sd"> rdflib.term.Literal(%(u)s'bla')),</span>
<span class="sd"> (rdflib.term.URIRef(%(u)s'http://www.w3.org/2004/02/skos/core#prefLabel'),</span>
<span class="sd"> rdflib.term.Literal(%(u)s'blubb', lang='en'))]</span>
<span class="sd"> >>> g.preferredLabel(u, lang='') #doctest: +NORMALIZE_WHITESPACE</span>
<span class="sd"> [(rdflib.term.URIRef(%(u)s'http://www.w3.org/2004/02/skos/core#prefLabel'),</span>
<span class="sd"> rdflib.term.Literal(%(u)s'bla'))]</span>
<span class="sd"> >>> pprint(g.preferredLabel(u, lang='en'))</span>
<span class="sd"> [(rdflib.term.URIRef(%(u)s'http://www.w3.org/2004/02/skos/core#prefLabel'),</span>
<span class="sd"> rdflib.term.Literal(%(u)s'blubb', lang='en'))]</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">default</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">default</span> <span class="o">=</span> <span class="p">[]</span>
<span class="c"># setup the language filtering</span>
<span class="k">if</span> <span class="n">lang</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">if</span> <span class="n">lang</span> <span class="o">==</span> <span class="s">''</span><span class="p">:</span> <span class="c"># we only want not language-tagged literals</span>
<span class="n">langfilter</span> <span class="o">=</span> <span class="k">lambda</span> <span class="n">l</span><span class="p">:</span> <span class="n">l</span><span class="o">.</span><span class="n">language</span> <span class="ow">is</span> <span class="bp">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">langfilter</span> <span class="o">=</span> <span class="k">lambda</span> <span class="n">l</span><span class="p">:</span> <span class="n">l</span><span class="o">.</span><span class="n">language</span> <span class="o">==</span> <span class="n">lang</span>
<span class="k">else</span><span class="p">:</span> <span class="c"># we don't care about language tags</span>
<span class="n">langfilter</span> <span class="o">=</span> <span class="k">lambda</span> <span class="n">l</span><span class="p">:</span> <span class="bp">True</span>
<span class="k">for</span> <span class="n">labelProp</span> <span class="ow">in</span> <span class="n">labelProperties</span><span class="p">:</span>
<span class="n">labels</span> <span class="o">=</span> <span class="nb">filter</span><span class="p">(</span><span class="n">langfilter</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">objects</span><span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="n">labelProp</span><span class="p">))</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">labels</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">continue</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="p">[(</span><span class="n">labelProp</span><span class="p">,</span> <span class="n">l</span><span class="p">)</span> <span class="k">for</span> <span class="n">l</span> <span class="ow">in</span> <span class="n">labels</span><span class="p">]</span>
<span class="k">return</span> <span class="n">default</span>
</div>
<div class="viewcode-block" id="Graph.comment"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.comment">[docs]</a> <span class="k">def</span> <span class="nf">comment</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="s">''</span><span class="p">):</span>
<span class="sd">"""Query for the RDFS.comment of the subject</span>
<span class="sd"> Return default if no comment exists</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">subject</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">return</span> <span class="n">default</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">value</span><span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="n">RDFS</span><span class="o">.</span><span class="n">comment</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="n">default</span><span class="p">,</span> <span class="nb">any</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.items"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.items">[docs]</a> <span class="k">def</span> <span class="nf">items</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="nb">list</span><span class="p">):</span>
<span class="sd">"""Generator over all items in the resource specified by list</span>
<span class="sd"> list is an RDF collection.</span>
<span class="sd"> """</span>
<span class="n">chain</span> <span class="o">=</span> <span class="nb">set</span><span class="p">([</span><span class="nb">list</span><span class="p">])</span>
<span class="k">while</span> <span class="nb">list</span><span class="p">:</span>
<span class="n">item</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">value</span><span class="p">(</span><span class="nb">list</span><span class="p">,</span> <span class="n">RDF</span><span class="o">.</span><span class="n">first</span><span class="p">)</span>
<span class="k">if</span> <span class="n">item</span><span class="p">:</span>
<span class="k">yield</span> <span class="n">item</span>
<span class="nb">list</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">value</span><span class="p">(</span><span class="nb">list</span><span class="p">,</span> <span class="n">RDF</span><span class="o">.</span><span class="n">rest</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">list</span> <span class="ow">in</span> <span class="n">chain</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s">"List contains a recursive rdf:rest reference"</span><span class="p">)</span>
<span class="n">chain</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="nb">list</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.transitiveClosure"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.transitiveClosure">[docs]</a> <span class="k">def</span> <span class="nf">transitiveClosure</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">func</span><span class="p">,</span> <span class="n">arg</span><span class="p">,</span> <span class="n">seen</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Generates transitive closure of a user-defined</span>
<span class="sd"> function against the graph</span>
<span class="sd"> >>> from rdflib.collection import Collection</span>
<span class="sd"> >>> g=Graph()</span>
<span class="sd"> >>> a=BNode('foo')</span>
<span class="sd"> >>> b=BNode('bar')</span>
<span class="sd"> >>> c=BNode('baz')</span>
<span class="sd"> >>> g.add((a,RDF.first,RDF.type))</span>
<span class="sd"> >>> g.add((a,RDF.rest,b))</span>
<span class="sd"> >>> g.add((b,RDF.first,RDFS.label))</span>
<span class="sd"> >>> g.add((b,RDF.rest,c))</span>
<span class="sd"> >>> g.add((c,RDF.first,RDFS.comment))</span>
<span class="sd"> >>> g.add((c,RDF.rest,RDF.nil))</span>
<span class="sd"> >>> def topList(node,g):</span>
<span class="sd"> ... for s in g.subjects(RDF.rest,node):</span>
<span class="sd"> ... yield s</span>
<span class="sd"> >>> def reverseList(node,g):</span>
<span class="sd"> ... for f in g.objects(node,RDF.first):</span>
<span class="sd"> ... print(f)</span>
<span class="sd"> ... for s in g.subjects(RDF.rest,node):</span>
<span class="sd"> ... yield s</span>
<span class="sd"> >>> [rt for rt in g.transitiveClosure(</span>
<span class="sd"> ... topList,RDF.nil)] # doctest: +NORMALIZE_WHITESPACE</span>
<span class="sd"> [rdflib.term.BNode('baz'),</span>
<span class="sd"> rdflib.term.BNode('bar'),</span>
<span class="sd"> rdflib.term.BNode('foo')]</span>
<span class="sd"> >>> [rt for rt in g.transitiveClosure(</span>
<span class="sd"> ... reverseList,RDF.nil)] # doctest: +NORMALIZE_WHITESPACE</span>
<span class="sd"> http://www.w3.org/2000/01/rdf-schema#comment</span>
<span class="sd"> http://www.w3.org/2000/01/rdf-schema#label</span>
<span class="sd"> http://www.w3.org/1999/02/22-rdf-syntax-ns#type</span>
<span class="sd"> [rdflib.term.BNode('baz'),</span>
<span class="sd"> rdflib.term.BNode('bar'),</span>
<span class="sd"> rdflib.term.BNode('foo')]</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">seen</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">seen</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">elif</span> <span class="n">arg</span> <span class="ow">in</span> <span class="n">seen</span><span class="p">:</span>
<span class="k">return</span>
<span class="n">seen</span><span class="p">[</span><span class="n">arg</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">for</span> <span class="n">rt</span> <span class="ow">in</span> <span class="n">func</span><span class="p">(</span><span class="n">arg</span><span class="p">,</span> <span class="bp">self</span><span class="p">):</span>
<span class="k">yield</span> <span class="n">rt</span>
<span class="k">for</span> <span class="n">rt_2</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">transitiveClosure</span><span class="p">(</span><span class="n">func</span><span class="p">,</span> <span class="n">rt</span><span class="p">,</span> <span class="n">seen</span><span class="p">):</span>
<span class="k">yield</span> <span class="n">rt_2</span>
</div>
<div class="viewcode-block" id="Graph.transitive_objects"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.transitive_objects">[docs]</a> <span class="k">def</span> <span class="nf">transitive_objects</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="p">,</span> <span class="nb">property</span><span class="p">,</span> <span class="n">remember</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">"""Transitively generate objects for the ``property`` relationship</span>
<span class="sd"> Generated objects belong to the depth first transitive closure of the</span>
<span class="sd"> ``property`` relationship starting at ``subject``.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">remember</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">remember</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">if</span> <span class="n">subject</span> <span class="ow">in</span> <span class="n">remember</span><span class="p">:</span>
<span class="k">return</span>
<span class="n">remember</span><span class="p">[</span><span class="n">subject</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">yield</span> <span class="n">subject</span>
<span class="k">for</span> <span class="nb">object</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">objects</span><span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="nb">property</span><span class="p">):</span>
<span class="k">for</span> <span class="n">o</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">transitive_objects</span><span class="p">(</span><span class="nb">object</span><span class="p">,</span> <span class="nb">property</span><span class="p">,</span> <span class="n">remember</span><span class="p">):</span>
<span class="k">yield</span> <span class="n">o</span>
</div>
<div class="viewcode-block" id="Graph.transitive_subjects"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.transitive_subjects">[docs]</a> <span class="k">def</span> <span class="nf">transitive_subjects</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">predicate</span><span class="p">,</span> <span class="nb">object</span><span class="p">,</span> <span class="n">remember</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">"""Transitively generate objects for the ``property`` relationship</span>
<span class="sd"> Generated objects belong to the depth first transitive closure of the</span>
<span class="sd"> ``property`` relationship starting at ``subject``.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">remember</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">remember</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">if</span> <span class="nb">object</span> <span class="ow">in</span> <span class="n">remember</span><span class="p">:</span>
<span class="k">return</span>
<span class="n">remember</span><span class="p">[</span><span class="nb">object</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">yield</span> <span class="nb">object</span>
<span class="k">for</span> <span class="n">subject</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">subjects</span><span class="p">(</span><span class="n">predicate</span><span class="p">,</span> <span class="nb">object</span><span class="p">):</span>
<span class="k">for</span> <span class="n">s</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">transitive_subjects</span><span class="p">(</span><span class="n">predicate</span><span class="p">,</span> <span class="n">subject</span><span class="p">,</span> <span class="n">remember</span><span class="p">):</span>
<span class="k">yield</span> <span class="n">s</span>
</div>
<div class="viewcode-block" id="Graph.seq"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.seq">[docs]</a> <span class="k">def</span> <span class="nf">seq</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="p">):</span>
<span class="sd">"""Check if subject is an rdf:Seq</span>
<span class="sd"> If yes, it returns a Seq class instance, None otherwise.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="n">RDF</span><span class="o">.</span><span class="n">type</span><span class="p">,</span> <span class="n">RDF</span><span class="o">.</span><span class="n">Seq</span><span class="p">)</span> <span class="ow">in</span> <span class="bp">self</span><span class="p">:</span>
<span class="k">return</span> <span class="n">Seq</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">subject</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">None</span>
</div>
<div class="viewcode-block" id="Graph.qname"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.qname">[docs]</a> <span class="k">def</span> <span class="nf">qname</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">uri</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespace_manager</span><span class="o">.</span><span class="n">qname</span><span class="p">(</span><span class="n">uri</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.compute_qname"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.compute_qname">[docs]</a> <span class="k">def</span> <span class="nf">compute_qname</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">uri</span><span class="p">,</span> <span class="n">generate</span><span class="o">=</span><span class="bp">True</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespace_manager</span><span class="o">.</span><span class="n">compute_qname</span><span class="p">(</span><span class="n">uri</span><span class="p">,</span> <span class="n">generate</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.bind"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.bind">[docs]</a> <span class="k">def</span> <span class="nf">bind</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span><span class="p">,</span> <span class="n">override</span><span class="o">=</span><span class="bp">True</span><span class="p">):</span>
<span class="sd">"""Bind prefix to namespace</span>
<span class="sd"> If override is True will bind namespace to given prefix even</span>
<span class="sd"> if namespace was already bound to a different prefix.</span>
<span class="sd"> for example: graph.bind('foaf', 'http://xmlns.com/foaf/0.1/')</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespace_manager</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span>
<span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span><span class="p">,</span> <span class="n">override</span><span class="o">=</span><span class="n">override</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.namespaces"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.namespaces">[docs]</a> <span class="k">def</span> <span class="nf">namespaces</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Generator over all the prefix, namespace tuples"""</span>
<span class="k">for</span> <span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespace_manager</span><span class="o">.</span><span class="n">namespaces</span><span class="p">():</span>
<span class="k">yield</span> <span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span>
</div>
<div class="viewcode-block" id="Graph.absolutize"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.absolutize">[docs]</a> <span class="k">def</span> <span class="nf">absolutize</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">uri</span><span class="p">,</span> <span class="n">defrag</span><span class="o">=</span><span class="mi">1</span><span class="p">):</span>
<span class="sd">"""Turn uri into an absolute URI if it's not one already"""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespace_manager</span><span class="o">.</span><span class="n">absolutize</span><span class="p">(</span><span class="n">uri</span><span class="p">,</span> <span class="n">defrag</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.serialize"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.serialize">[docs]</a> <span class="k">def</span> <span class="nf">serialize</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">destination</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">format</span><span class="o">=</span><span class="s">"xml"</span><span class="p">,</span>
<span class="n">base</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">):</span>
<span class="sd">"""Serialize the Graph to destination</span>
<span class="sd"> If destination is None serialize method returns the serialization as a</span>
<span class="sd"> string. Format defaults to xml (AKA rdf/xml).</span>
<span class="sd"> Format support can be extended with plugins,</span>
<span class="sd"> but 'xml', 'n3', 'turtle', 'nt', 'pretty-xml', trix' are built in.</span>
<span class="sd"> """</span>
<span class="n">serializer</span> <span class="o">=</span> <span class="n">plugin</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">format</span><span class="p">,</span> <span class="n">Serializer</span><span class="p">)(</span><span class="bp">self</span><span class="p">)</span>
<span class="k">if</span> <span class="n">destination</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">stream</span> <span class="o">=</span> <span class="n">BytesIO</span><span class="p">()</span>
<span class="n">serializer</span><span class="o">.</span><span class="n">serialize</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="n">base</span><span class="o">=</span><span class="n">base</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="n">encoding</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">)</span>
<span class="k">return</span> <span class="n">stream</span><span class="o">.</span><span class="n">getvalue</span><span class="p">()</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">destination</span><span class="p">,</span> <span class="s">"write"</span><span class="p">):</span>
<span class="n">stream</span> <span class="o">=</span> <span class="n">destination</span>
<span class="n">serializer</span><span class="o">.</span><span class="n">serialize</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="n">base</span><span class="o">=</span><span class="n">base</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="n">encoding</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">location</span> <span class="o">=</span> <span class="n">destination</span>
<span class="n">scheme</span><span class="p">,</span> <span class="n">netloc</span><span class="p">,</span> <span class="n">path</span><span class="p">,</span> <span class="n">params</span><span class="p">,</span> <span class="n">_query</span><span class="p">,</span> <span class="n">fragment</span> <span class="o">=</span> <span class="n">urlparse</span><span class="p">(</span><span class="n">location</span><span class="p">)</span>
<span class="k">if</span> <span class="n">netloc</span> <span class="o">!=</span> <span class="s">""</span><span class="p">:</span>
<span class="k">print</span><span class="p">(</span><span class="s">"WARNING: not saving as location"</span> <span class="o">+</span>
<span class="s">"is not a local file reference"</span><span class="p">)</span>
<span class="k">return</span>
<span class="n">fd</span><span class="p">,</span> <span class="n">name</span> <span class="o">=</span> <span class="n">tempfile</span><span class="o">.</span><span class="n">mkstemp</span><span class="p">()</span>
<span class="n">stream</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">fdopen</span><span class="p">(</span><span class="n">fd</span><span class="p">,</span> <span class="s">"wb"</span><span class="p">)</span>
<span class="n">serializer</span><span class="o">.</span><span class="n">serialize</span><span class="p">(</span><span class="n">stream</span><span class="p">,</span> <span class="n">base</span><span class="o">=</span><span class="n">base</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="n">encoding</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">)</span>
<span class="n">stream</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">shutil</span><span class="p">,</span> <span class="s">"move"</span><span class="p">):</span>
<span class="n">shutil</span><span class="o">.</span><span class="n">move</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">path</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">shutil</span><span class="o">.</span><span class="n">copy</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">path</span><span class="p">)</span>
<span class="n">os</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.parse"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.parse">[docs]</a> <span class="k">def</span> <span class="nf">parse</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">publicID</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">format</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
<span class="n">location</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="nb">file</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">data</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Parse source adding the resulting triples to the Graph.</span>
<span class="sd"> The source is specified using one of source, location, file or</span>
<span class="sd"> data.</span>
<span class="sd"> :Parameters:</span>
<span class="sd"> - `source`: An InputSource, file-like object, or string. In the case</span>
<span class="sd"> of a string the string is the location of the source.</span>
<span class="sd"> - `location`: A string indicating the relative or absolute URL of the</span>
<span class="sd"> source. Graph's absolutize method is used if a relative location</span>
<span class="sd"> is specified.</span>
<span class="sd"> - `file`: A file-like object.</span>
<span class="sd"> - `data`: A string containing the data to be parsed.</span>
<span class="sd"> - `format`: Used if format can not be determined from source.</span>
<span class="sd"> Defaults to rdf/xml. Format support can be extended with plugins,</span>
<span class="sd"> but 'xml', 'n3', 'nt', 'trix', 'rdfa' are built in.</span>
<span class="sd"> - `publicID`: the logical URI to use as the document base. If None</span>
<span class="sd"> specified the document location is used (at least in the case where</span>
<span class="sd"> there is a document location).</span>
<span class="sd"> :Returns:</span>
<span class="sd"> - self, the graph instance.</span>
<span class="sd"> Examples:</span>
<span class="sd"> >>> my_data = '''</span>
<span class="sd"> ... <rdf:RDF</span>
<span class="sd"> ... xmlns:rdf='http://www.w3.org/1999/02/22-rdf-syntax-ns#'</span>
<span class="sd"> ... xmlns:rdfs='http://www.w3.org/2000/01/rdf-schema#'</span>
<span class="sd"> ... ></span>
<span class="sd"> ... <rdf:Description></span>
<span class="sd"> ... <rdfs:label>Example</rdfs:label></span>
<span class="sd"> ... <rdfs:comment>This is really just an example.</rdfs:comment></span>
<span class="sd"> ... </rdf:Description></span>
<span class="sd"> ... </rdf:RDF></span>
<span class="sd"> ... '''</span>
<span class="sd"> >>> import tempfile</span>
<span class="sd"> >>> fd, file_name = tempfile.mkstemp()</span>
<span class="sd"> >>> f = os.fdopen(fd, 'w')</span>
<span class="sd"> >>> dummy = f.write(my_data) # Returns num bytes written on py3</span>
<span class="sd"> >>> f.close()</span>
<span class="sd"> >>> g = Graph()</span>
<span class="sd"> >>> result = g.parse(data=my_data, format="application/rdf+xml")</span>
<span class="sd"> >>> len(g)</span>
<span class="sd"> 2</span>
<span class="sd"> >>> g = Graph()</span>
<span class="sd"> >>> result = g.parse(location=file_name, format="application/rdf+xml")</span>
<span class="sd"> >>> len(g)</span>
<span class="sd"> 2</span>
<span class="sd"> >>> g = Graph()</span>
<span class="sd"> >>> result = g.parse(file=open(file_name, "r"),</span>
<span class="sd"> ... format="application/rdf+xml")</span>
<span class="sd"> >>> len(g)</span>
<span class="sd"> 2</span>
<span class="sd"> >>> os.remove(file_name)</span>
<span class="sd"> """</span>
<span class="n">source</span> <span class="o">=</span> <span class="n">create_input_source</span><span class="p">(</span><span class="n">source</span><span class="o">=</span><span class="n">source</span><span class="p">,</span> <span class="n">publicID</span><span class="o">=</span><span class="n">publicID</span><span class="p">,</span>
<span class="n">location</span><span class="o">=</span><span class="n">location</span><span class="p">,</span> <span class="nb">file</span><span class="o">=</span><span class="nb">file</span><span class="p">,</span>
<span class="n">data</span><span class="o">=</span><span class="n">data</span><span class="p">,</span> <span class="n">format</span><span class="o">=</span><span class="n">format</span><span class="p">)</span>
<span class="k">if</span> <span class="n">format</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">format</span> <span class="o">=</span> <span class="n">source</span><span class="o">.</span><span class="n">content_type</span>
<span class="k">if</span> <span class="n">format</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="c"># raise Exception("Could not determine format for %r. You can" + \</span>
<span class="c"># "expicitly specify one with the format argument." % source)</span>
<span class="n">format</span> <span class="o">=</span> <span class="s">"application/rdf+xml"</span>
<span class="n">parser</span> <span class="o">=</span> <span class="n">plugin</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">format</span><span class="p">,</span> <span class="n">Parser</span><span class="p">)()</span>
<span class="n">parser</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span>
</div>
<div class="viewcode-block" id="Graph.load"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.load">[docs]</a> <span class="k">def</span> <span class="nf">load</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source</span><span class="p">,</span> <span class="n">publicID</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">format</span><span class="o">=</span><span class="s">"xml"</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">publicID</span><span class="p">,</span> <span class="n">format</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.query"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.query">[docs]</a> <span class="k">def</span> <span class="nf">query</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">query_object</span><span class="p">,</span> <span class="n">processor</span><span class="o">=</span><span class="s">'sparql'</span><span class="p">,</span>
<span class="n">result</span><span class="o">=</span><span class="s">'sparql'</span><span class="p">,</span> <span class="n">initNs</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">initBindings</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
<span class="n">use_store_provided</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Query this graph.</span>
<span class="sd"> A type of 'prepared queries' can be realised by providing</span>
<span class="sd"> initial variable bindings with initBindings</span>
<span class="sd"> Initial namespaces are used to resolve prefixes used in the query,</span>
<span class="sd"> if none are given, the namespaces from the graph's namespace manager</span>
<span class="sd"> are used.</span>
<span class="sd"> :returntype: rdflib.query.QueryResult</span>
<span class="sd"> """</span>
<span class="n">initBindings</span> <span class="o">=</span> <span class="n">initBindings</span> <span class="ow">or</span> <span class="p">{}</span>
<span class="n">initNs</span> <span class="o">=</span> <span class="n">initNs</span> <span class="ow">or</span> <span class="nb">dict</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">namespaces</span><span class="p">())</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="p">,</span> <span class="s">"query"</span><span class="p">)</span> <span class="ow">and</span> <span class="n">use_store_provided</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">query</span><span class="p">(</span>
<span class="n">query_object</span><span class="p">,</span> <span class="n">initNs</span><span class="p">,</span> <span class="n">initBindings</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">default_union</span>
<span class="ow">and</span> <span class="s">'__UNION__'</span>
<span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">identifier</span><span class="p">,</span>
<span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">NotImplementedError</span><span class="p">:</span>
<span class="k">pass</span> <span class="c"># store has no own implementation</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="n">query</span><span class="o">.</span><span class="n">Result</span><span class="p">):</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">plugin</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="n">query</span><span class="o">.</span><span class="n">Result</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">processor</span><span class="p">,</span> <span class="n">query</span><span class="o">.</span><span class="n">Processor</span><span class="p">):</span>
<span class="n">processor</span> <span class="o">=</span> <span class="n">plugin</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">processor</span><span class="p">,</span> <span class="n">query</span><span class="o">.</span><span class="n">Processor</span><span class="p">)(</span><span class="bp">self</span><span class="p">)</span>
<span class="k">return</span> <span class="n">result</span><span class="p">(</span><span class="n">processor</span><span class="o">.</span><span class="n">query</span><span class="p">(</span>
<span class="n">query_object</span><span class="p">,</span> <span class="n">initBindings</span><span class="p">,</span> <span class="n">initNs</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">))</span>
</div>
<div class="viewcode-block" id="Graph.update"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.update">[docs]</a> <span class="k">def</span> <span class="nf">update</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">update_object</span><span class="p">,</span> <span class="n">processor</span><span class="o">=</span><span class="s">'sparql'</span><span class="p">,</span>
<span class="n">initNs</span><span class="o">=</span><span class="p">{},</span> <span class="n">initBindings</span><span class="o">=</span><span class="p">{},</span>
<span class="n">use_store_provided</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="p">,</span> <span class="s">"update"</span><span class="p">)</span> <span class="ow">and</span> <span class="n">use_store_provided</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">update</span><span class="p">(</span>
<span class="n">update_object</span><span class="p">,</span> <span class="n">initNs</span><span class="p">,</span> <span class="n">initBindings</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">default_union</span>
<span class="ow">and</span> <span class="s">'__UNION__'</span>
<span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">identifier</span><span class="p">,</span>
<span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">NotImplementedError</span><span class="p">:</span>
<span class="k">pass</span> <span class="c"># store has no own implementation</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">processor</span><span class="p">,</span> <span class="n">query</span><span class="o">.</span><span class="n">UpdateProcessor</span><span class="p">):</span>
<span class="n">processor</span> <span class="o">=</span> <span class="n">plugin</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">processor</span><span class="p">,</span> <span class="n">query</span><span class="o">.</span><span class="n">UpdateProcessor</span><span class="p">)(</span><span class="bp">self</span><span class="p">)</span>
<span class="k">return</span> <span class="n">processor</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">update_object</span><span class="p">,</span> <span class="n">initBindings</span><span class="p">,</span> <span class="n">initNs</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Graph.n3"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.n3">[docs]</a> <span class="k">def</span> <span class="nf">n3</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""return an n3 identifier for the Graph"""</span>
<span class="k">return</span> <span class="s">"[</span><span class="si">%s</span><span class="s">]"</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">identifier</span><span class="o">.</span><span class="n">n3</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="Graph.__reduce__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.__reduce__">[docs]</a> <span class="k">def</span> <span class="nf">__reduce__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="p">(</span><span class="n">Graph</span><span class="p">,</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">identifier</span><span class="p">,))</span>
</div>
<div class="viewcode-block" id="Graph.isomorphic"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.isomorphic">[docs]</a> <span class="k">def</span> <span class="nf">isomorphic</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> does a very basic check if these graphs are the same</span>
<span class="sd"> If no BNodes are involved, this is accurate.</span>
<span class="sd"> See rdflib.compare for a correct implementation of isomorphism checks</span>
<span class="sd"> """</span>
<span class="c"># TODO: this is only an approximation.</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">!=</span> <span class="nb">len</span><span class="p">(</span><span class="n">other</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">False</span>
<span class="k">for</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span> <span class="ow">in</span> <span class="bp">self</span><span class="p">:</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">BNode</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">o</span><span class="p">,</span> <span class="n">BNode</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span> <span class="ow">in</span> <span class="n">other</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">False</span>
<span class="k">for</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span> <span class="ow">in</span> <span class="n">other</span><span class="p">:</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">BNode</span><span class="p">)</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">o</span><span class="p">,</span> <span class="n">BNode</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span> <span class="ow">in</span> <span class="bp">self</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">False</span>
<span class="c"># TODO: very well could be a false positive at this point yet.</span>
<span class="k">return</span> <span class="bp">True</span>
</div>
<div class="viewcode-block" id="Graph.connected"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.connected">[docs]</a> <span class="k">def</span> <span class="nf">connected</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Check if the Graph is connected</span>
<span class="sd"> The Graph is considered undirectional.</span>
<span class="sd"> Performs a search on the Graph, starting from a random node. Then</span>
<span class="sd"> iteratively goes depth-first through the triplets where the node is</span>
<span class="sd"> subject and object. Return True if all nodes have been visited and</span>
<span class="sd"> False if it cannot continue and there are still unvisited nodes left.</span>
<span class="sd"> """</span>
<span class="n">all_nodes</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">all_nodes</span><span class="p">())</span>
<span class="n">discovered</span> <span class="o">=</span> <span class="p">[]</span>
<span class="c"># take a random one, could also always take the first one, doesn't</span>
<span class="c"># really matter.</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">all_nodes</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">False</span>
<span class="n">visiting</span> <span class="o">=</span> <span class="p">[</span><span class="n">all_nodes</span><span class="p">[</span><span class="n">random</span><span class="o">.</span><span class="n">randrange</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">all_nodes</span><span class="p">))]]</span>
<span class="k">while</span> <span class="n">visiting</span><span class="p">:</span>
<span class="n">x</span> <span class="o">=</span> <span class="n">visiting</span><span class="o">.</span><span class="n">pop</span><span class="p">()</span>
<span class="k">if</span> <span class="n">x</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">discovered</span><span class="p">:</span>
<span class="n">discovered</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">x</span><span class="p">)</span>
<span class="k">for</span> <span class="n">new_x</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">objects</span><span class="p">(</span><span class="n">subject</span><span class="o">=</span><span class="n">x</span><span class="p">):</span>
<span class="k">if</span> <span class="n">new_x</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">discovered</span> <span class="ow">and</span> <span class="n">new_x</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">visiting</span><span class="p">:</span>
<span class="n">visiting</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">new_x</span><span class="p">)</span>
<span class="k">for</span> <span class="n">new_x</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">subjects</span><span class="p">(</span><span class="nb">object</span><span class="o">=</span><span class="n">x</span><span class="p">):</span>
<span class="k">if</span> <span class="n">new_x</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">discovered</span> <span class="ow">and</span> <span class="n">new_x</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">visiting</span><span class="p">:</span>
<span class="n">visiting</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">new_x</span><span class="p">)</span>
<span class="c"># optimisation by only considering length, since no new objects can</span>
<span class="c"># be introduced anywhere.</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">all_nodes</span><span class="p">)</span> <span class="o">==</span> <span class="nb">len</span><span class="p">(</span><span class="n">discovered</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">True</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">False</span>
</div>
<div class="viewcode-block" id="Graph.all_nodes"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.all_nodes">[docs]</a> <span class="k">def</span> <span class="nf">all_nodes</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">obj</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">objects</span><span class="p">())</span>
<span class="n">allNodes</span> <span class="o">=</span> <span class="n">obj</span><span class="o">.</span><span class="n">union</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">subjects</span><span class="p">()))</span>
<span class="k">return</span> <span class="n">allNodes</span>
</div>
<div class="viewcode-block" id="Graph.resource"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.resource">[docs]</a> <span class="k">def</span> <span class="nf">resource</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">identifier</span><span class="p">):</span>
<span class="sd">"""Create a new ``Resource`` instance.</span>
<span class="sd"> Parameters:</span>
<span class="sd"> - ``identifier``: a URIRef or BNode instance.</span>
<span class="sd"> Example::</span>
<span class="sd"> >>> graph = Graph()</span>
<span class="sd"> >>> uri = URIRef("http://example.org/resource")</span>
<span class="sd"> >>> resource = graph.resource(uri)</span>
<span class="sd"> >>> assert isinstance(resource, Resource)</span>
<span class="sd"> >>> assert resource.identifier is uri</span>
<span class="sd"> >>> assert resource.graph is graph</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="n">Node</span><span class="p">):</span>
<span class="n">identifier</span> <span class="o">=</span> <span class="n">URIRef</span><span class="p">(</span><span class="n">identifier</span><span class="p">)</span>
<span class="k">return</span> <span class="n">Resource</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">identifier</span><span class="p">)</span>
</div>
<span class="k">def</span> <span class="nf">_process_skolem_tuples</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">target</span><span class="p">,</span> <span class="n">func</span><span class="p">):</span>
<span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">triples</span><span class="p">((</span><span class="bp">None</span><span class="p">,</span> <span class="bp">None</span><span class="p">,</span> <span class="bp">None</span><span class="p">)):</span>
<span class="n">target</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">func</span><span class="p">(</span><span class="n">t</span><span class="p">))</span>
<div class="viewcode-block" id="Graph.skolemize"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.skolemize">[docs]</a> <span class="k">def</span> <span class="nf">skolemize</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">new_graph</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">bnode</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">do_skolemize</span><span class="p">(</span><span class="n">bnode</span><span class="p">,</span> <span class="n">t</span><span class="p">):</span>
<span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span> <span class="o">=</span> <span class="n">t</span>
<span class="k">if</span> <span class="n">s</span> <span class="o">==</span> <span class="n">bnode</span><span class="p">:</span>
<span class="n">s</span> <span class="o">=</span> <span class="n">s</span><span class="o">.</span><span class="n">skolemize</span><span class="p">()</span>
<span class="k">if</span> <span class="n">o</span> <span class="o">==</span> <span class="n">bnode</span><span class="p">:</span>
<span class="n">o</span> <span class="o">=</span> <span class="n">o</span><span class="o">.</span><span class="n">skolemize</span><span class="p">()</span>
<span class="k">return</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">do_skolemize2</span><span class="p">(</span><span class="n">t</span><span class="p">):</span>
<span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span> <span class="o">=</span> <span class="n">t</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">BNode</span><span class="p">):</span>
<span class="n">s</span> <span class="o">=</span> <span class="n">s</span><span class="o">.</span><span class="n">skolemize</span><span class="p">()</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">o</span><span class="p">,</span> <span class="n">BNode</span><span class="p">):</span>
<span class="n">o</span> <span class="o">=</span> <span class="n">o</span><span class="o">.</span><span class="n">skolemize</span><span class="p">()</span>
<span class="k">return</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span>
<span class="n">retval</span> <span class="o">=</span> <span class="n">Graph</span><span class="p">()</span> <span class="k">if</span> <span class="n">new_graph</span> <span class="ow">is</span> <span class="bp">None</span> <span class="k">else</span> <span class="n">new_graph</span>
<span class="k">if</span> <span class="n">bnode</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_process_skolem_tuples</span><span class="p">(</span><span class="n">retval</span><span class="p">,</span> <span class="n">do_skolemize2</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">bnode</span><span class="p">,</span> <span class="n">BNode</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_process_skolem_tuples</span><span class="p">(</span>
<span class="n">retval</span><span class="p">,</span> <span class="k">lambda</span> <span class="n">t</span><span class="p">:</span> <span class="n">do_skolemize</span><span class="p">(</span><span class="n">bnode</span><span class="p">,</span> <span class="n">t</span><span class="p">))</span>
<span class="k">return</span> <span class="n">retval</span>
</div>
<div class="viewcode-block" id="Graph.de_skolemize"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Graph.de_skolemize">[docs]</a> <span class="k">def</span> <span class="nf">de_skolemize</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">new_graph</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">uriref</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">do_de_skolemize</span><span class="p">(</span><span class="n">uriref</span><span class="p">,</span> <span class="n">t</span><span class="p">):</span>
<span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span> <span class="o">=</span> <span class="n">t</span>
<span class="k">if</span> <span class="n">s</span> <span class="o">==</span> <span class="n">uriref</span><span class="p">:</span>
<span class="n">s</span> <span class="o">=</span> <span class="n">s</span><span class="o">.</span><span class="n">de_skolemize</span><span class="p">()</span>
<span class="k">if</span> <span class="n">o</span> <span class="o">==</span> <span class="n">uriref</span><span class="p">:</span>
<span class="n">o</span> <span class="o">=</span> <span class="n">o</span><span class="o">.</span><span class="n">de_skolemize</span><span class="p">()</span>
<span class="k">return</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">do_de_skolemize2</span><span class="p">(</span><span class="n">t</span><span class="p">):</span>
<span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span> <span class="o">=</span> <span class="n">t</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">Genid</span><span class="p">):</span>
<span class="n">s</span> <span class="o">=</span> <span class="n">s</span><span class="o">.</span><span class="n">de_skolemize</span><span class="p">()</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">o</span><span class="p">,</span> <span class="n">Genid</span><span class="p">):</span>
<span class="n">o</span> <span class="o">=</span> <span class="n">o</span><span class="o">.</span><span class="n">de_skolemize</span><span class="p">()</span>
<span class="k">return</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span>
<span class="n">retval</span> <span class="o">=</span> <span class="n">Graph</span><span class="p">()</span> <span class="k">if</span> <span class="n">new_graph</span> <span class="ow">is</span> <span class="bp">None</span> <span class="k">else</span> <span class="n">new_graph</span>
<span class="k">if</span> <span class="n">uriref</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_process_skolem_tuples</span><span class="p">(</span><span class="n">retval</span><span class="p">,</span> <span class="n">do_de_skolemize2</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">uriref</span><span class="p">,</span> <span class="n">Genid</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_process_skolem_tuples</span><span class="p">(</span>
<span class="n">retval</span><span class="p">,</span> <span class="k">lambda</span> <span class="n">t</span><span class="p">:</span> <span class="n">do_de_skolemize</span><span class="p">(</span><span class="n">uriref</span><span class="p">,</span> <span class="n">t</span><span class="p">))</span>
<span class="k">return</span> <span class="n">retval</span>
</div></div>
<div class="viewcode-block" id="ConjunctiveGraph"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ConjunctiveGraph">[docs]</a><span class="k">class</span> <span class="nc">ConjunctiveGraph</span><span class="p">(</span><span class="n">Graph</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> A ConjunctiveGraph is an (unamed) aggregation of all the named</span>
<span class="sd"> graphs in a store.</span>
<span class="sd"> It has a ``default`` graph, whose name is associated with the</span>
<span class="sd"> graph throughout its life. :meth:`__init__` can take an identifier</span>
<span class="sd"> to use as the name of this default graph or it will assign a</span>
<span class="sd"> BNode.</span>
<span class="sd"> All methods that add triples work against this default graph.</span>
<span class="sd"> All queries are carried out against the union of all graphs.</span>
<span class="sd"> """</span>
<div class="viewcode-block" id="ConjunctiveGraph.__init__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ConjunctiveGraph.__init__">[docs]</a> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">store</span><span class="o">=</span><span class="s">'default'</span><span class="p">,</span> <span class="n">identifier</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="nb">super</span><span class="p">(</span><span class="n">ConjunctiveGraph</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="n">store</span><span class="p">,</span> <span class="n">identifier</span><span class="o">=</span><span class="n">identifier</span><span class="p">)</span>
<span class="k">assert</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">context_aware</span><span class="p">,</span> <span class="p">(</span><span class="s">"ConjunctiveGraph must be backed by"</span>
<span class="s">" a context aware store."</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">context_aware</span> <span class="o">=</span> <span class="bp">True</span>
<span class="bp">self</span><span class="o">.</span><span class="n">default_union</span> <span class="o">=</span> <span class="bp">True</span> <span class="c"># Conjunctive!</span>
<span class="bp">self</span><span class="o">.</span><span class="n">default_context</span> <span class="o">=</span> <span class="n">Graph</span><span class="p">(</span><span class="n">store</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="p">,</span>
<span class="n">identifier</span><span class="o">=</span><span class="n">identifier</span> <span class="ow">or</span> <span class="n">BNode</span><span class="p">())</span>
</div>
<div class="viewcode-block" id="ConjunctiveGraph.__str__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ConjunctiveGraph.__str__">[docs]</a> <span class="k">def</span> <span class="nf">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">pattern</span> <span class="o">=</span> <span class="p">(</span><span class="s">"[a rdflib:ConjunctiveGraph;rdflib:storage "</span>
<span class="s">"[a rdflib:Store;rdfs:label '</span><span class="si">%s</span><span class="s">']]"</span><span class="p">)</span>
<span class="k">return</span> <span class="n">pattern</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__name__</span>
</div>
<span class="k">def</span> <span class="nf">_spoc</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">triple_or_quad</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> helper method for having methods that support</span>
<span class="sd"> either triples or quads</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">triple_or_quad</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">return</span> <span class="p">(</span><span class="bp">None</span><span class="p">,</span> <span class="bp">None</span><span class="p">,</span> <span class="bp">None</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">default_context</span> <span class="k">if</span> <span class="n">default</span> <span class="k">else</span> <span class="bp">None</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">triple_or_quad</span><span class="p">)</span> <span class="o">==</span> <span class="mi">3</span><span class="p">:</span>
<span class="n">c</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">default_context</span> <span class="k">if</span> <span class="n">default</span> <span class="k">else</span> <span class="bp">None</span>
<span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span> <span class="o">=</span> <span class="n">triple_or_quad</span>
<span class="k">elif</span> <span class="nb">len</span><span class="p">(</span><span class="n">triple_or_quad</span><span class="p">)</span> <span class="o">==</span> <span class="mi">4</span><span class="p">:</span>
<span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">,</span> <span class="n">c</span><span class="p">)</span> <span class="o">=</span> <span class="n">triple_or_quad</span>
<span class="n">c</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_graph</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
<span class="k">return</span> <span class="n">s</span><span class="p">,</span><span class="n">p</span><span class="p">,</span><span class="n">o</span><span class="p">,</span><span class="n">c</span>
<div class="viewcode-block" id="ConjunctiveGraph.__contains__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ConjunctiveGraph.__contains__">[docs]</a> <span class="k">def</span> <span class="nf">__contains__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">triple_or_quad</span><span class="p">):</span>
<span class="sd">"""Support for 'triple/quad in graph' syntax"""</span>
<span class="n">s</span><span class="p">,</span><span class="n">p</span><span class="p">,</span><span class="n">o</span><span class="p">,</span><span class="n">c</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_spoc</span><span class="p">(</span><span class="n">triple_or_quad</span><span class="p">)</span>
<span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">triples</span><span class="p">((</span><span class="n">s</span><span class="p">,</span><span class="n">p</span><span class="p">,</span><span class="n">o</span><span class="p">),</span> <span class="n">context</span><span class="o">=</span><span class="n">c</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">True</span>
<span class="k">return</span> <span class="bp">False</span>
</div>
<div class="viewcode-block" id="ConjunctiveGraph.add"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ConjunctiveGraph.add">[docs]</a> <span class="k">def</span> <span class="nf">add</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">triple_or_quad</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Add a triple or quad to the store.</span>
<span class="sd"> if a triple is given it is added to the default context</span>
<span class="sd"> """</span>
<span class="n">s</span><span class="p">,</span><span class="n">p</span><span class="p">,</span><span class="n">o</span><span class="p">,</span><span class="n">c</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_spoc</span><span class="p">(</span><span class="n">triple_or_quad</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
<span class="n">_assertnode</span><span class="p">(</span><span class="n">s</span><span class="p">,</span><span class="n">p</span><span class="p">,</span><span class="n">o</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">add</span><span class="p">((</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">),</span> <span class="n">context</span><span class="o">=</span><span class="n">c</span><span class="p">,</span> <span class="n">quoted</span><span class="o">=</span><span class="bp">False</span><span class="p">)</span>
</div>
<span class="k">def</span> <span class="nf">_graph</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">c</span><span class="p">):</span>
<span class="k">if</span> <span class="n">c</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span> <span class="k">return</span> <span class="bp">None</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">c</span><span class="p">,</span> <span class="n">Graph</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_context</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="n">c</span>
<div class="viewcode-block" id="ConjunctiveGraph.addN"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ConjunctiveGraph.addN">[docs]</a> <span class="k">def</span> <span class="nf">addN</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">quads</span><span class="p">):</span>
<span class="sd">"""Add a sequence of triples with context"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">addN</span><span class="p">(</span>
<span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_graph</span><span class="p">(</span><span class="n">c</span><span class="p">))</span> <span class="k">for</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">,</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">quads</span> <span class="k">if</span>
<span class="n">_assertnode</span><span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span>
<span class="p">)</span>
</div>
<div class="viewcode-block" id="ConjunctiveGraph.remove"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ConjunctiveGraph.remove">[docs]</a> <span class="k">def</span> <span class="nf">remove</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">triple_or_quad</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Removes a triple or quads</span>
<span class="sd"> if a triple is given it is removed from all contexts</span>
<span class="sd"> a quad is removed from the given context only</span>
<span class="sd"> """</span>
<span class="n">s</span><span class="p">,</span><span class="n">p</span><span class="p">,</span><span class="n">o</span><span class="p">,</span><span class="n">c</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_spoc</span><span class="p">(</span><span class="n">triple_or_quad</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">remove</span><span class="p">((</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">),</span> <span class="n">context</span><span class="o">=</span><span class="n">c</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="ConjunctiveGraph.triples"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ConjunctiveGraph.triples">[docs]</a> <span class="k">def</span> <span class="nf">triples</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">triple_or_quad</span><span class="p">,</span> <span class="n">context</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Iterate over all the triples in the entire conjunctive graph</span>
<span class="sd"> For legacy reasons, this can take the context to query either</span>
<span class="sd"> as a fourth element of the quad, or as the explicit context</span>
<span class="sd"> keyword paramater. The kw param takes precedence.</span>
<span class="sd"> """</span>
<span class="n">s</span><span class="p">,</span><span class="n">p</span><span class="p">,</span><span class="n">o</span><span class="p">,</span><span class="n">c</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_spoc</span><span class="p">(</span><span class="n">triple_or_quad</span><span class="p">)</span>
<span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_graph</span><span class="p">(</span><span class="n">context</span> <span class="ow">or</span> <span class="n">c</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">default_union</span><span class="p">:</span>
<span class="k">if</span> <span class="n">context</span><span class="o">==</span><span class="bp">self</span><span class="o">.</span><span class="n">default_context</span><span class="p">:</span>
<span class="n">context</span> <span class="o">=</span> <span class="bp">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">if</span> <span class="n">context</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">default_context</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">Path</span><span class="p">):</span>
<span class="k">if</span> <span class="n">context</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">context</span> <span class="o">=</span> <span class="bp">self</span>
<span class="k">for</span> <span class="n">s</span><span class="p">,</span> <span class="n">o</span> <span class="ow">in</span> <span class="n">p</span><span class="o">.</span><span class="n">eval</span><span class="p">(</span><span class="n">context</span><span class="p">,</span> <span class="n">s</span><span class="p">,</span> <span class="n">o</span><span class="p">):</span>
<span class="k">yield</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">for</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">),</span> <span class="n">cg</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">triples</span><span class="p">((</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">),</span> <span class="n">context</span><span class="o">=</span><span class="n">context</span><span class="p">):</span>
<span class="k">yield</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span>
</div>
<div class="viewcode-block" id="ConjunctiveGraph.quads"><a class="viewcode-back" href="../../univrdfstore.html#rdflib.graph.ConjunctiveGraph.quads">[docs]</a> <span class="k">def</span> <span class="nf">quads</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">triple_or_quad</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">"""Iterate over all the quads in the entire conjunctive graph"""</span>
<span class="n">s</span><span class="p">,</span><span class="n">p</span><span class="p">,</span><span class="n">o</span><span class="p">,</span><span class="n">c</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_spoc</span><span class="p">(</span><span class="n">triple_or_quad</span><span class="p">)</span>
<span class="k">for</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">),</span> <span class="n">cg</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">triples</span><span class="p">((</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">),</span> <span class="n">context</span><span class="o">=</span><span class="n">c</span><span class="p">):</span>
<span class="k">for</span> <span class="n">ctx</span> <span class="ow">in</span> <span class="n">cg</span><span class="p">:</span>
<span class="k">yield</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">,</span> <span class="n">ctx</span>
</div>
<div class="viewcode-block" id="ConjunctiveGraph.triples_choices"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ConjunctiveGraph.triples_choices">[docs]</a> <span class="k">def</span> <span class="nf">triples_choices</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">),</span> <span class="n">context</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">"""Iterate over all the triples in the entire conjunctive graph"""</span>
<span class="k">if</span> <span class="n">context</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">default_union</span><span class="p">:</span>
<span class="n">context</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">default_context</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">context</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_graph</span><span class="p">(</span><span class="n">context</span><span class="p">)</span>
<span class="k">for</span> <span class="p">(</span><span class="n">s1</span><span class="p">,</span> <span class="n">p1</span><span class="p">,</span> <span class="n">o1</span><span class="p">),</span> <span class="n">cg</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">triples_choices</span><span class="p">((</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">),</span>
<span class="n">context</span><span class="o">=</span><span class="n">context</span><span class="p">):</span>
<span class="k">yield</span> <span class="p">(</span><span class="n">s1</span><span class="p">,</span> <span class="n">p1</span><span class="p">,</span> <span class="n">o1</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="ConjunctiveGraph.__len__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ConjunctiveGraph.__len__">[docs]</a> <span class="k">def</span> <span class="nf">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Number of triples in the entire conjunctive graph"""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">__len__</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="ConjunctiveGraph.contexts"><a class="viewcode-back" href="../../univrdfstore.html#rdflib.graph.ConjunctiveGraph.contexts">[docs]</a> <span class="k">def</span> <span class="nf">contexts</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">triple</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">"""Iterate over all contexts in the graph</span>
<span class="sd"> If triple is specified, iterate over all contexts the triple is in.</span>
<span class="sd"> """</span>
<span class="k">for</span> <span class="n">context</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">contexts</span><span class="p">(</span><span class="n">triple</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">context</span><span class="p">,</span> <span class="n">Graph</span><span class="p">):</span>
<span class="c"># TODO: One of these should never happen and probably</span>
<span class="c"># should raise an exception rather than smoothing over</span>
<span class="c"># the weirdness - see #225</span>
<span class="k">yield</span> <span class="n">context</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">yield</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_context</span><span class="p">(</span><span class="n">context</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="ConjunctiveGraph.get_context"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ConjunctiveGraph.get_context">[docs]</a> <span class="k">def</span> <span class="nf">get_context</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">identifier</span><span class="p">,</span> <span class="n">quoted</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
<span class="sd">"""Return a context graph for the given identifier</span>
<span class="sd"> identifier must be a URIRef or BNode.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">Graph</span><span class="p">(</span><span class="n">store</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="p">,</span> <span class="n">identifier</span><span class="o">=</span><span class="n">identifier</span><span class="p">,</span>
<span class="n">namespace_manager</span><span class="o">=</span><span class="bp">self</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="ConjunctiveGraph.remove_context"><a class="viewcode-back" href="../../univrdfstore.html#rdflib.graph.ConjunctiveGraph.remove_context">[docs]</a> <span class="k">def</span> <span class="nf">remove_context</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="p">):</span>
<span class="sd">"""Removes the given context from the graph"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">remove</span><span class="p">((</span><span class="bp">None</span><span class="p">,</span> <span class="bp">None</span><span class="p">,</span> <span class="bp">None</span><span class="p">),</span> <span class="n">context</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="ConjunctiveGraph.context_id"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ConjunctiveGraph.context_id">[docs]</a> <span class="k">def</span> <span class="nf">context_id</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">uri</span><span class="p">,</span> <span class="n">context_id</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="sd">"""URI#context"""</span>
<span class="n">uri</span> <span class="o">=</span> <span class="n">uri</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s">"#"</span><span class="p">,</span> <span class="mi">1</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">if</span> <span class="n">context_id</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="n">context_id</span> <span class="o">=</span> <span class="s">"#context"</span>
<span class="k">return</span> <span class="n">URIRef</span><span class="p">(</span><span class="n">context_id</span><span class="p">,</span> <span class="n">base</span><span class="o">=</span><span class="n">uri</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="ConjunctiveGraph.parse"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ConjunctiveGraph.parse">[docs]</a> <span class="k">def</span> <span class="nf">parse</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">publicID</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">format</span><span class="o">=</span><span class="s">"xml"</span><span class="p">,</span>
<span class="n">location</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="nb">file</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">data</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Parse source adding the resulting triples to its own context</span>
<span class="sd"> (sub graph of this graph).</span>
<span class="sd"> See :meth:`rdflib.graph.Graph.parse` for documentation on arguments.</span>
<span class="sd"> :Returns:</span>
<span class="sd"> The graph into which the source was parsed. In the case of n3</span>
<span class="sd"> it returns the root context.</span>
<span class="sd"> """</span>
<span class="n">source</span> <span class="o">=</span> <span class="n">create_input_source</span><span class="p">(</span>
<span class="n">source</span><span class="o">=</span><span class="n">source</span><span class="p">,</span> <span class="n">publicID</span><span class="o">=</span><span class="n">publicID</span><span class="p">,</span> <span class="n">location</span><span class="o">=</span><span class="n">location</span><span class="p">,</span>
<span class="nb">file</span><span class="o">=</span><span class="nb">file</span><span class="p">,</span> <span class="n">data</span><span class="o">=</span><span class="n">data</span><span class="p">,</span> <span class="n">format</span><span class="o">=</span><span class="n">format</span><span class="p">)</span>
<span class="n">g_id</span> <span class="o">=</span> <span class="n">publicID</span> <span class="ow">and</span> <span class="n">publicID</span> <span class="ow">or</span> <span class="n">source</span><span class="o">.</span><span class="n">getPublicId</span><span class="p">()</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">g_id</span><span class="p">,</span> <span class="n">Node</span><span class="p">):</span>
<span class="n">g_id</span> <span class="o">=</span> <span class="n">URIRef</span><span class="p">(</span><span class="n">g_id</span><span class="p">)</span>
<span class="n">context</span> <span class="o">=</span> <span class="n">Graph</span><span class="p">(</span><span class="n">store</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="p">,</span> <span class="n">identifier</span><span class="o">=</span><span class="n">g_id</span><span class="p">)</span>
<span class="n">context</span><span class="o">.</span><span class="n">remove</span><span class="p">((</span><span class="bp">None</span><span class="p">,</span> <span class="bp">None</span><span class="p">,</span> <span class="bp">None</span><span class="p">))</span> <span class="c"># hmm ?</span>
<span class="n">context</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="n">source</span><span class="p">,</span> <span class="n">publicID</span><span class="o">=</span><span class="n">publicID</span><span class="p">,</span> <span class="n">format</span><span class="o">=</span><span class="n">format</span><span class="p">,</span>
<span class="n">location</span><span class="o">=</span><span class="n">location</span><span class="p">,</span> <span class="nb">file</span><span class="o">=</span><span class="nb">file</span><span class="p">,</span> <span class="n">data</span><span class="o">=</span><span class="n">data</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">)</span>
<span class="k">return</span> <span class="n">context</span>
</div>
<div class="viewcode-block" id="ConjunctiveGraph.__reduce__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ConjunctiveGraph.__reduce__">[docs]</a> <span class="k">def</span> <span class="nf">__reduce__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="p">(</span><span class="n">ConjunctiveGraph</span><span class="p">,</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">identifier</span><span class="p">))</span>
</div></div>
<span class="n">DATASET_DEFAULT_GRAPH_ID</span> <span class="o">=</span> <span class="n">URIRef</span><span class="p">(</span><span class="s">'urn:x-rdflib:default'</span><span class="p">)</span>
<div class="viewcode-block" id="Dataset"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Dataset">[docs]</a><span class="k">class</span> <span class="nc">Dataset</span><span class="p">(</span><span class="n">ConjunctiveGraph</span><span class="p">):</span>
<span class="n">__doc__</span> <span class="o">=</span> <span class="n">format_doctest_out</span><span class="p">(</span><span class="s">"""</span>
<span class="s"> RDF 1.1 Dataset. Small extension to the Conjunctive Graph:</span>
<span class="s"> - the primary term is graphs in the datasets and not contexts with quads,</span>
<span class="s"> so there is a separate method to set/retrieve a graph in a dataset and</span>
<span class="s"> operate with graphs</span>
<span class="s"> - graphs cannot be identified with blank nodes</span>
<span class="s"> - added a method to directly add a single quad</span>
<span class="s"> Examples of usage:</span>
<span class="s"> >>> # Create a new Dataset</span>
<span class="s"> >>> ds = Dataset()</span>
<span class="s"> >>> # simple triples goes to default graph</span>
<span class="s"> >>> ds.add((URIRef('http://example.org/a'),</span>
<span class="s"> ... URIRef('http://www.example.org/b'),</span>
<span class="s"> ... Literal('foo')))</span>
<span class="s"> >>></span>
<span class="s"> >>> # Create a graph in the dataset, if the graph name has already been</span>
<span class="s"> >>> # used, the corresponding graph will be returned</span>
<span class="s"> >>> # (ie, the Dataset keeps track of the constituent graphs)</span>
<span class="s"> >>> g = ds.graph(URIRef('http://www.example.com/gr'))</span>
<span class="s"> >>></span>
<span class="s"> >>> # add triples to the new graph as usual</span>
<span class="s"> >>> g.add(</span>
<span class="s"> ... (URIRef('http://example.org/x'),</span>
<span class="s"> ... URIRef('http://example.org/y'),</span>
<span class="s"> ... Literal('bar')) )</span>
<span class="s"> >>> # alternatively: add a quad to the dataset -> goes to the graph</span>
<span class="s"> >>> ds.add(</span>
<span class="s"> ... (URIRef('http://example.org/x'),</span>
<span class="s"> ... URIRef('http://example.org/z'),</span>
<span class="s"> ... Literal('foo-bar'),g) )</span>
<span class="s"> >>></span>
<span class="s"> >>> # querying triples return them all regardless of the graph</span>
<span class="s"> >>> for t in ds.triples((None,None,None)): # doctest: +SKIP</span>
<span class="s"> ... print(t) # doctest: +NORMALIZE_WHITESPACE</span>
<span class="s"> (rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/a'),</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://www.example.org/b'),</span>
<span class="s"> rdflib.term.Literal(</span><span class="si">%(u)s</span><span class="s">'foo'))</span>
<span class="s"> (rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/x'),</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/z'),</span>
<span class="s"> rdflib.term.Literal(</span><span class="si">%(u)s</span><span class="s">'foo-bar'))</span>
<span class="s"> (rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/x'),</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/y'),</span>
<span class="s"> rdflib.term.Literal(</span><span class="si">%(u)s</span><span class="s">'bar'))</span>
<span class="s"> >>></span>
<span class="s"> >>> # querying quads return quads; the fourth argument can be unrestricted</span>
<span class="s"> >>> # or restricted to a graph</span>
<span class="s"> >>> for q in ds.quads((None, None, None, None)): # doctest: +SKIP</span>
<span class="s"> ... print(q) # doctest: +NORMALIZE_WHITESPACE</span>
<span class="s"> (rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/a'),</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://www.example.org/b'),</span>
<span class="s"> rdflib.term.Literal(</span><span class="si">%(u)s</span><span class="s">'foo'),</span>
<span class="s"> None)</span>
<span class="s"> (rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/x'),</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/y'),</span>
<span class="s"> rdflib.term.Literal(</span><span class="si">%(u)s</span><span class="s">'bar'),</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://www.example.com/gr'))</span>
<span class="s"> (rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/x'),</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/z'),</span>
<span class="s"> rdflib.term.Literal(</span><span class="si">%(u)s</span><span class="s">'foo-bar'),</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://www.example.com/gr'))</span>
<span class="s"> >>></span>
<span class="s"> >>> for q in ds.quads((None,None,None,g)): # doctest: +SKIP</span>
<span class="s"> ... print(q) # doctest: +NORMALIZE_WHITESPACE</span>
<span class="s"> (rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/x'),</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/y'),</span>
<span class="s"> rdflib.term.Literal(</span><span class="si">%(u)s</span><span class="s">'bar'),</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://www.example.com/gr'))</span>
<span class="s"> (rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/x'),</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://example.org/z'),</span>
<span class="s"> rdflib.term.Literal(</span><span class="si">%(u)s</span><span class="s">'foo-bar'),</span>
<span class="s"> rdflib.term.URIRef(</span><span class="si">%(u)s</span><span class="s">'http://www.example.com/gr'))</span>
<span class="s"> >>> # Note that in the call above -</span>
<span class="s"> >>> # ds.quads((None,None,None,'http://www.example.com/gr'))</span>
<span class="s"> >>> # would have been accepted, too</span>
<span class="s"> >>></span>
<span class="s"> >>> # graph names in the dataset can be queried:</span>
<span class="s"> >>> for c in ds.graphs(): # doctest: +SKIP</span>
<span class="s"> ... print(c) # doctest:</span>
<span class="s"> DEFAULT</span>
<span class="s"> http://www.example.com/gr</span>
<span class="s"> >>> # A graph can be created without specifying a name; a skolemized genid</span>
<span class="s"> >>> # is created on the fly</span>
<span class="s"> >>> h = ds.graph()</span>
<span class="s"> >>> for c in ds.graphs(): # doctest: +SKIP</span>
<span class="s"> ... print(c) # doctest: +NORMALIZE_WHITESPACE +ELLIPSIS</span>
<span class="s"> DEFAULT</span>
<span class="s"> http://rdlib.net/.well-known/genid/rdflib/N...</span>
<span class="s"> http://www.example.com/gr</span>
<span class="s"> >>> # Note that the Dataset.graphs() call returns names of empty graphs,</span>
<span class="s"> >>> # too. This can be restricted:</span>
<span class="s"> >>> for c in ds.graphs(empty=False): # doctest: +SKIP</span>
<span class="s"> ... print(c) # doctest: +NORMALIZE_WHITESPACE</span>
<span class="s"> DEFAULT</span>
<span class="s"> http://www.example.com/gr</span>
<span class="s"> >>></span>
<span class="s"> >>> # a graph can also be removed from a dataset via ds.remove_graph(g)</span>
<span class="s"> .. versionadded:: 4.0</span>
<span class="s"> """</span><span class="p">)</span>
<div class="viewcode-block" id="Dataset.__init__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Dataset.__init__">[docs]</a> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">store</span><span class="o">=</span><span class="s">'default'</span><span class="p">,</span> <span class="n">default_union</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
<span class="nb">super</span><span class="p">(</span><span class="n">Dataset</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="n">store</span><span class="o">=</span><span class="n">store</span><span class="p">,</span> <span class="n">identifier</span><span class="o">=</span><span class="bp">None</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">graph_aware</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">"DataSet must be backed by a graph-aware store!"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">default_context</span> <span class="o">=</span> <span class="n">Graph</span><span class="p">(</span><span class="n">store</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="p">,</span> <span class="n">identifier</span><span class="o">=</span><span class="n">DATASET_DEFAULT_GRAPH_ID</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">default_union</span> <span class="o">=</span> <span class="n">default_union</span>
</div>
<div class="viewcode-block" id="Dataset.__str__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Dataset.__str__">[docs]</a> <span class="k">def</span> <span class="nf">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">pattern</span> <span class="o">=</span> <span class="p">(</span><span class="s">"[a rdflib:Dataset;rdflib:storage "</span>
<span class="s">"[a rdflib:Store;rdfs:label '</span><span class="si">%s</span><span class="s">']]"</span><span class="p">)</span>
<span class="k">return</span> <span class="n">pattern</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__name__</span>
</div>
<div class="viewcode-block" id="Dataset.graph"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Dataset.graph">[docs]</a> <span class="k">def</span> <span class="nf">graph</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">identifier</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="k">if</span> <span class="n">identifier</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">rdflib.term</span> <span class="kn">import</span> <span class="n">rdflib_skolem_genid</span>
<span class="bp">self</span><span class="o">.</span><span class="n">bind</span><span class="p">(</span>
<span class="s">"genid"</span><span class="p">,</span> <span class="s">"http://rdflib.net"</span> <span class="o">+</span> <span class="n">rdflib_skolem_genid</span><span class="p">,</span>
<span class="n">override</span><span class="o">=</span><span class="bp">False</span><span class="p">)</span>
<span class="n">identifier</span> <span class="o">=</span> <span class="n">BNode</span><span class="p">()</span><span class="o">.</span><span class="n">skolemize</span><span class="p">()</span>
<span class="n">g</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_graph</span><span class="p">(</span><span class="n">identifier</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">add_graph</span><span class="p">(</span><span class="n">g</span><span class="p">)</span>
<span class="k">return</span> <span class="n">g</span>
</div>
<div class="viewcode-block" id="Dataset.parse"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Dataset.parse">[docs]</a> <span class="k">def</span> <span class="nf">parse</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">publicID</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">format</span><span class="o">=</span><span class="s">"xml"</span><span class="p">,</span>
<span class="n">location</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="nb">file</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">data</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">):</span>
<span class="n">c</span> <span class="o">=</span> <span class="n">ConjunctiveGraph</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source</span><span class="p">,</span> <span class="n">publicID</span><span class="p">,</span> <span class="n">format</span><span class="p">,</span> <span class="n">location</span><span class="p">,</span> <span class="nb">file</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">graph</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
<span class="k">return</span> <span class="n">c</span>
</div>
<div class="viewcode-block" id="Dataset.add_graph"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Dataset.add_graph">[docs]</a> <span class="k">def</span> <span class="nf">add_graph</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">g</span><span class="p">):</span>
<span class="sd">"""alias of graph for consistency"""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">graph</span><span class="p">(</span><span class="n">g</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Dataset.remove_graph"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Dataset.remove_graph">[docs]</a> <span class="k">def</span> <span class="nf">remove_graph</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">g</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">g</span><span class="p">,</span> <span class="n">Graph</span><span class="p">):</span>
<span class="n">g</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_context</span><span class="p">(</span><span class="n">g</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">remove_graph</span><span class="p">(</span><span class="n">g</span><span class="p">)</span>
<span class="k">if</span> <span class="n">g</span> <span class="ow">is</span> <span class="bp">None</span> <span class="ow">or</span> <span class="n">g</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">default_context</span><span class="p">:</span>
<span class="c"># default graph cannot be removed</span>
<span class="c"># only triples deleted, so add it back in</span>
<span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">add_graph</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">default_context</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Dataset.contexts"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Dataset.contexts">[docs]</a> <span class="k">def</span> <span class="nf">contexts</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">triple</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="n">default</span> <span class="o">=</span> <span class="bp">False</span>
<span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="nb">super</span><span class="p">(</span><span class="n">Dataset</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">contexts</span><span class="p">(</span><span class="n">triple</span><span class="p">):</span>
<span class="n">default</span><span class="o">|=</span><span class="n">c</span><span class="o">.</span><span class="n">identifier</span> <span class="o">==</span> <span class="n">DATASET_DEFAULT_GRAPH_ID</span>
<span class="k">yield</span> <span class="n">c</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">default</span><span class="p">:</span> <span class="k">yield</span> <span class="bp">self</span><span class="o">.</span><span class="n">graph</span><span class="p">(</span><span class="n">DATASET_DEFAULT_GRAPH_ID</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Dataset.quads"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Dataset.quads">[docs]</a> <span class="k">def</span> <span class="nf">quads</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">quad</span><span class="p">):</span>
<span class="k">for</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">,</span> <span class="n">c</span> <span class="ow">in</span> <span class="nb">super</span><span class="p">(</span><span class="n">Dataset</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">quads</span><span class="p">(</span><span class="n">quad</span><span class="p">):</span>
<span class="k">if</span> <span class="n">c</span><span class="o">.</span><span class="n">identifier</span><span class="o">==</span><span class="bp">self</span><span class="o">.</span><span class="n">default_context</span><span class="p">:</span>
<span class="k">yield</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">,</span> <span class="bp">None</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">yield</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">,</span> <span class="n">c</span><span class="o">.</span><span class="n">identifier</span><span class="p">)</span>
</div></div>
<div class="viewcode-block" id="QuotedGraph"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.QuotedGraph">[docs]</a><span class="k">class</span> <span class="nc">QuotedGraph</span><span class="p">(</span><span class="n">Graph</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Quoted Graphs are intended to implement Notation 3 formulae. They are</span>
<span class="sd"> associated with a required identifier that the N3 parser *must* provide</span>
<span class="sd"> in order to maintain consistent formulae identification for scenarios</span>
<span class="sd"> such as implication and other such processing.</span>
<span class="sd"> """</span>
<div class="viewcode-block" id="QuotedGraph.__init__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.QuotedGraph.__init__">[docs]</a> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">store</span><span class="p">,</span> <span class="n">identifier</span><span class="p">):</span>
<span class="nb">super</span><span class="p">(</span><span class="n">QuotedGraph</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="n">store</span><span class="p">,</span> <span class="n">identifier</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="QuotedGraph.add"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.QuotedGraph.add">[docs]</a> <span class="k">def</span> <span class="nf">add</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)):</span>
<span class="sd">"""Add a triple with self as context"""</span>
<span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">Node</span><span class="p">),</span> \
<span class="s">"Subject </span><span class="si">%s</span><span class="s"> must be an rdflib term"</span> <span class="o">%</span> <span class="p">(</span><span class="n">s</span><span class="p">,)</span>
<span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">Node</span><span class="p">),</span> \
<span class="s">"Predicate </span><span class="si">%s</span><span class="s"> must be an rdflib term"</span> <span class="o">%</span> <span class="p">(</span><span class="n">p</span><span class="p">,)</span>
<span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">o</span><span class="p">,</span> <span class="n">Node</span><span class="p">),</span> \
<span class="s">"Object </span><span class="si">%s</span><span class="s"> must be an rdflib term"</span> <span class="o">%</span> <span class="p">(</span><span class="n">o</span><span class="p">,)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">add</span><span class="p">((</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">),</span> <span class="bp">self</span><span class="p">,</span> <span class="n">quoted</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="QuotedGraph.addN"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.QuotedGraph.addN">[docs]</a> <span class="k">def</span> <span class="nf">addN</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">quads</span><span class="p">):</span>
<span class="sd">"""Add a sequence of triple with context"""</span>
<span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">addN</span><span class="p">(</span>
<span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">,</span> <span class="n">c</span><span class="p">)</span> <span class="k">for</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">,</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">quads</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">c</span><span class="p">,</span> <span class="n">QuotedGraph</span><span class="p">)</span>
<span class="ow">and</span> <span class="n">c</span><span class="o">.</span><span class="n">identifier</span> <span class="ow">is</span> <span class="bp">self</span><span class="o">.</span><span class="n">identifier</span>
<span class="ow">and</span> <span class="n">_assertnode</span><span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span>
<span class="p">)</span>
</div>
<div class="viewcode-block" id="QuotedGraph.n3"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.QuotedGraph.n3">[docs]</a> <span class="k">def</span> <span class="nf">n3</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Return an n3 identifier for the Graph"""</span>
<span class="k">return</span> <span class="s">"{</span><span class="si">%s</span><span class="s">}"</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">identifier</span><span class="o">.</span><span class="n">n3</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="QuotedGraph.__str__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.QuotedGraph.__str__">[docs]</a> <span class="k">def</span> <span class="nf">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">identifier</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">identifier</span><span class="o">.</span><span class="n">n3</span><span class="p">()</span>
<span class="n">label</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="o">.</span><span class="n">__class__</span><span class="o">.</span><span class="n">__name__</span>
<span class="n">pattern</span> <span class="o">=</span> <span class="p">(</span><span class="s">"{this rdflib.identifier </span><span class="si">%s</span><span class="s">;rdflib:storage "</span>
<span class="s">"[a rdflib:Store;rdfs:label '</span><span class="si">%s</span><span class="s">']}"</span><span class="p">)</span>
<span class="k">return</span> <span class="n">pattern</span> <span class="o">%</span> <span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="n">label</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="QuotedGraph.__reduce__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.QuotedGraph.__reduce__">[docs]</a> <span class="k">def</span> <span class="nf">__reduce__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="p">(</span><span class="n">QuotedGraph</span><span class="p">,</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">store</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">identifier</span><span class="p">))</span>
<span class="c"># Make sure QuotedGraph is ordered correctly</span>
<span class="c"># wrt to other Terms.</span>
<span class="c"># this must be done here, as the QuotedGraph cannot be</span>
<span class="c"># circularily imported in term.py</span></div></div>
<span class="n">rdflib</span><span class="o">.</span><span class="n">term</span><span class="o">.</span><span class="n">_ORDERING</span><span class="p">[</span><span class="n">QuotedGraph</span><span class="p">]</span><span class="o">=</span><span class="mi">11</span>
<div class="viewcode-block" id="Seq"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Seq">[docs]</a><span class="k">class</span> <span class="nc">Seq</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="sd">"""Wrapper around an RDF Seq resource</span>
<span class="sd"> It implements a container type in Python with the order of the items</span>
<span class="sd"> returned corresponding to the Seq content. It is based on the natural</span>
<span class="sd"> ordering of the predicate names _1, _2, _3, etc, which is the</span>
<span class="sd"> 'implementation' of a sequence in RDF terms.</span>
<span class="sd"> """</span>
<div class="viewcode-block" id="Seq.__init__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Seq.__init__">[docs]</a> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">graph</span><span class="p">,</span> <span class="n">subject</span><span class="p">):</span>
<span class="sd">"""Parameters:</span>
<span class="sd"> - graph:</span>
<span class="sd"> the graph containing the Seq</span>
<span class="sd"> - subject:</span>
<span class="sd"> the subject of a Seq. Note that the init does not</span>
<span class="sd"> check whether this is a Seq, this is done in whoever</span>
<span class="sd"> creates this instance!</span>
<span class="sd"> """</span>
<span class="n">_list</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_list</span> <span class="o">=</span> <span class="nb">list</span><span class="p">()</span>
<span class="n">LI_INDEX</span> <span class="o">=</span> <span class="n">URIRef</span><span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">RDF</span><span class="p">)</span> <span class="o">+</span> <span class="s">"_"</span><span class="p">)</span>
<span class="k">for</span> <span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span> <span class="ow">in</span> <span class="n">graph</span><span class="o">.</span><span class="n">predicate_objects</span><span class="p">(</span><span class="n">subject</span><span class="p">):</span>
<span class="k">if</span> <span class="n">p</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="n">LI_INDEX</span><span class="p">):</span> <span class="c"># != RDF.Seq: #</span>
<span class="n">i</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">p</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">LI_INDEX</span><span class="p">,</span> <span class="s">''</span><span class="p">))</span>
<span class="n">_list</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">i</span><span class="p">,</span> <span class="n">o</span><span class="p">))</span>
<span class="c"># here is the trick: the predicates are _1, _2, _3, etc. Ie,</span>
<span class="c"># by sorting the keys (by integer) we have what we want!</span>
<span class="n">_list</span><span class="o">.</span><span class="n">sort</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="Seq.toPython"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Seq.toPython">[docs]</a> <span class="k">def</span> <span class="nf">toPython</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span>
</div>
<div class="viewcode-block" id="Seq.__iter__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Seq.__iter__">[docs]</a> <span class="k">def</span> <span class="nf">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Generator over the items in the Seq"""</span>
<span class="k">for</span> <span class="n">_</span><span class="p">,</span> <span class="n">item</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_list</span><span class="p">:</span>
<span class="k">yield</span> <span class="n">item</span>
</div>
<div class="viewcode-block" id="Seq.__len__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Seq.__len__">[docs]</a> <span class="k">def</span> <span class="nf">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Length of the Seq"""</span>
<span class="k">return</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_list</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="Seq.__getitem__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.Seq.__getitem__">[docs]</a> <span class="k">def</span> <span class="nf">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
<span class="sd">"""Item given by index from the Seq"""</span>
<span class="n">index</span><span class="p">,</span> <span class="n">item</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_list</span><span class="o">.</span><span class="n">__getitem__</span><span class="p">(</span><span class="n">index</span><span class="p">)</span>
<span class="k">return</span> <span class="n">item</span>
</div></div>
<div class="viewcode-block" id="ModificationException"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ModificationException">[docs]</a><span class="k">class</span> <span class="nc">ModificationException</span><span class="p">(</span><span class="ne">Exception</span><span class="p">):</span>
<div class="viewcode-block" id="ModificationException.__init__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ModificationException.__init__">[docs]</a> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">pass</span>
</div>
<div class="viewcode-block" id="ModificationException.__str__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ModificationException.__str__">[docs]</a> <span class="k">def</span> <span class="nf">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="p">(</span><span class="s">"Modifications and transactional operations not allowed on "</span>
<span class="s">"ReadOnlyGraphAggregate instances"</span><span class="p">)</span>
</div></div>
<div class="viewcode-block" id="UnSupportedAggregateOperation"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.UnSupportedAggregateOperation">[docs]</a><span class="k">class</span> <span class="nc">UnSupportedAggregateOperation</span><span class="p">(</span><span class="ne">Exception</span><span class="p">):</span>
<div class="viewcode-block" id="UnSupportedAggregateOperation.__init__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.UnSupportedAggregateOperation.__init__">[docs]</a> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">pass</span>
</div>
<div class="viewcode-block" id="UnSupportedAggregateOperation.__str__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.UnSupportedAggregateOperation.__str__">[docs]</a> <span class="k">def</span> <span class="nf">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="p">(</span><span class="s">"This operation is not supported by ReadOnlyGraphAggregate "</span>
<span class="s">"instances"</span><span class="p">)</span>
</div></div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate">[docs]</a><span class="k">class</span> <span class="nc">ReadOnlyGraphAggregate</span><span class="p">(</span><span class="n">ConjunctiveGraph</span><span class="p">):</span>
<span class="sd">"""Utility class for treating a set of graphs as a single graph</span>
<span class="sd"> Only read operations are supported (hence the name). Essentially a</span>
<span class="sd"> ConjunctiveGraph over an explicit subset of the entire store.</span>
<span class="sd"> """</span>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.__init__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.__init__">[docs]</a> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">graphs</span><span class="p">,</span> <span class="n">store</span><span class="o">=</span><span class="s">'default'</span><span class="p">):</span>
<span class="k">if</span> <span class="n">store</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
<span class="nb">super</span><span class="p">(</span><span class="n">ReadOnlyGraphAggregate</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="n">store</span><span class="p">)</span>
<span class="n">Graph</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">store</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">__namespace_manager</span> <span class="o">=</span> <span class="bp">None</span>
<span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">graphs</span><span class="p">,</span> <span class="nb">list</span><span class="p">)</span> \
<span class="ow">and</span> <span class="n">graphs</span> \
<span class="ow">and</span> <span class="p">[</span><span class="n">g</span> <span class="k">for</span> <span class="n">g</span> <span class="ow">in</span> <span class="n">graphs</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">g</span><span class="p">,</span> <span class="n">Graph</span><span class="p">)],</span> \
<span class="s">"graphs argument must be a list of Graphs!!"</span>
<span class="bp">self</span><span class="o">.</span><span class="n">graphs</span> <span class="o">=</span> <span class="n">graphs</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.__repr__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.__repr__">[docs]</a> <span class="k">def</span> <span class="nf">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="s">"<ReadOnlyGraphAggregate: </span><span class="si">%s</span><span class="s"> graphs>"</span> <span class="o">%</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">graphs</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.destroy"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.destroy">[docs]</a> <span class="k">def</span> <span class="nf">destroy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">configuration</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">ModificationException</span><span class="p">()</span>
<span class="c"># Transactional interfaces (optional)</span></div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.commit"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.commit">[docs]</a> <span class="k">def</span> <span class="nf">commit</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">ModificationException</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.rollback"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.rollback">[docs]</a> <span class="k">def</span> <span class="nf">rollback</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">ModificationException</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.open"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.open">[docs]</a> <span class="k">def</span> <span class="nf">open</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">configuration</span><span class="p">,</span> <span class="n">create</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
<span class="c"># TODO: is there a use case for this method?</span>
<span class="k">for</span> <span class="n">graph</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">graphs</span><span class="p">:</span>
<span class="n">graph</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">configuration</span><span class="p">,</span> <span class="n">create</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.close"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.close">[docs]</a> <span class="k">def</span> <span class="nf">close</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">for</span> <span class="n">graph</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">graphs</span><span class="p">:</span>
<span class="n">graph</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.add"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.add">[docs]</a> <span class="k">def</span> <span class="nf">add</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)):</span>
<span class="k">raise</span> <span class="n">ModificationException</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.addN"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.addN">[docs]</a> <span class="k">def</span> <span class="nf">addN</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">quads</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">ModificationException</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.remove"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.remove">[docs]</a> <span class="k">def</span> <span class="nf">remove</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)):</span>
<span class="k">raise</span> <span class="n">ModificationException</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.triples"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.triples">[docs]</a> <span class="k">def</span> <span class="nf">triples</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)):</span>
<span class="k">for</span> <span class="n">graph</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">graphs</span><span class="p">:</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">p</span><span class="p">,</span> <span class="n">Path</span><span class="p">):</span>
<span class="k">for</span> <span class="n">s</span><span class="p">,</span> <span class="n">o</span> <span class="ow">in</span> <span class="n">p</span><span class="o">.</span><span class="n">eval</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">s</span><span class="p">,</span> <span class="n">o</span><span class="p">):</span>
<span class="k">yield</span> <span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">for</span> <span class="n">s1</span><span class="p">,</span> <span class="n">p1</span><span class="p">,</span> <span class="n">o1</span> <span class="ow">in</span> <span class="n">graph</span><span class="o">.</span><span class="n">triples</span><span class="p">((</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)):</span>
<span class="k">yield</span> <span class="p">(</span><span class="n">s1</span><span class="p">,</span> <span class="n">p1</span><span class="p">,</span> <span class="n">o1</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.__contains__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.__contains__">[docs]</a> <span class="k">def</span> <span class="nf">__contains__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">triple_or_quad</span><span class="p">):</span>
<span class="n">context</span> <span class="o">=</span> <span class="bp">None</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">triple_or_quad</span><span class="p">)</span> <span class="o">==</span> <span class="mi">4</span><span class="p">:</span>
<span class="n">context</span> <span class="o">=</span> <span class="n">triple_or_quad</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span>
<span class="k">for</span> <span class="n">graph</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">graphs</span><span class="p">:</span>
<span class="k">if</span> <span class="n">context</span> <span class="ow">is</span> <span class="bp">None</span> <span class="ow">or</span> <span class="n">graph</span><span class="o">.</span><span class="n">identifier</span> <span class="o">==</span> <span class="n">context</span><span class="o">.</span><span class="n">identifier</span><span class="p">:</span>
<span class="k">if</span> <span class="n">triple_or_quad</span><span class="p">[:</span><span class="mi">3</span><span class="p">]</span> <span class="ow">in</span> <span class="n">graph</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">True</span>
<span class="k">return</span> <span class="bp">False</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.quads"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.quads">[docs]</a> <span class="k">def</span> <span class="nf">quads</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)):</span>
<span class="sd">"""Iterate over all the quads in the entire aggregate graph"""</span>
<span class="k">for</span> <span class="n">graph</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">graphs</span><span class="p">:</span>
<span class="k">for</span> <span class="n">s1</span><span class="p">,</span> <span class="n">p1</span><span class="p">,</span> <span class="n">o1</span> <span class="ow">in</span> <span class="n">graph</span><span class="o">.</span><span class="n">triples</span><span class="p">((</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)):</span>
<span class="k">yield</span> <span class="p">(</span><span class="n">s1</span><span class="p">,</span> <span class="n">p1</span><span class="p">,</span> <span class="n">o1</span><span class="p">,</span> <span class="n">graph</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.__len__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.__len__">[docs]</a> <span class="k">def</span> <span class="nf">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">sum</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">g</span><span class="p">)</span> <span class="k">for</span> <span class="n">g</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">graphs</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.__hash__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.__hash__">[docs]</a> <span class="k">def</span> <span class="nf">__hash__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">UnSupportedAggregateOperation</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.__cmp__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.__cmp__">[docs]</a> <span class="k">def</span> <span class="nf">__cmp__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">if</span> <span class="n">other</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
<span class="k">return</span> <span class="o">-</span><span class="mi">1</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="n">Graph</span><span class="p">):</span>
<span class="k">return</span> <span class="o">-</span><span class="mi">1</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="n">ReadOnlyGraphAggregate</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">cmp</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">graphs</span><span class="p">,</span> <span class="n">other</span><span class="o">.</span><span class="n">graphs</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="o">-</span><span class="mi">1</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.__iadd__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.__iadd__">[docs]</a> <span class="k">def</span> <span class="nf">__iadd__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">ModificationException</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.__isub__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.__isub__">[docs]</a> <span class="k">def</span> <span class="nf">__isub__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">ModificationException</span><span class="p">()</span>
<span class="c"># Conv. methods</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.triples_choices"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.triples_choices">[docs]</a> <span class="k">def</span> <span class="nf">triples_choices</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="p">(</span><span class="n">subject</span><span class="p">,</span> <span class="n">predicate</span><span class="p">,</span> <span class="n">object_</span><span class="p">),</span> <span class="n">context</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="k">for</span> <span class="n">graph</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">graphs</span><span class="p">:</span>
<span class="n">choices</span> <span class="o">=</span> <span class="n">graph</span><span class="o">.</span><span class="n">triples_choices</span><span class="p">((</span><span class="n">subject</span><span class="p">,</span> <span class="n">predicate</span><span class="p">,</span> <span class="n">object_</span><span class="p">))</span>
<span class="k">for</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span> <span class="ow">in</span> <span class="n">choices</span><span class="p">:</span>
<span class="k">yield</span> <span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">p</span><span class="p">,</span> <span class="n">o</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.qname"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.qname">[docs]</a> <span class="k">def</span> <span class="nf">qname</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">uri</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s">'namespace_manager'</span><span class="p">)</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespace_manager</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespace_manager</span><span class="o">.</span><span class="n">qname</span><span class="p">(</span><span class="n">uri</span><span class="p">)</span>
<span class="k">raise</span> <span class="n">UnSupportedAggregateOperation</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.compute_qname"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.compute_qname">[docs]</a> <span class="k">def</span> <span class="nf">compute_qname</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">uri</span><span class="p">,</span> <span class="n">generate</span><span class="o">=</span><span class="bp">True</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s">'namespace_manager'</span><span class="p">)</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespace_manager</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespace_manager</span><span class="o">.</span><span class="n">compute_qname</span><span class="p">(</span><span class="n">uri</span><span class="p">,</span> <span class="n">generate</span><span class="p">)</span>
<span class="k">raise</span> <span class="n">UnSupportedAggregateOperation</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.bind"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.bind">[docs]</a> <span class="k">def</span> <span class="nf">bind</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span><span class="p">,</span> <span class="n">override</span><span class="o">=</span><span class="bp">True</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">UnSupportedAggregateOperation</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.namespaces"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.namespaces">[docs]</a> <span class="k">def</span> <span class="nf">namespaces</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s">'namespace_manager'</span><span class="p">):</span>
<span class="k">for</span> <span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">namespace_manager</span><span class="o">.</span><span class="n">namespaces</span><span class="p">():</span>
<span class="k">yield</span> <span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">for</span> <span class="n">graph</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">graphs</span><span class="p">:</span>
<span class="k">for</span> <span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span> <span class="ow">in</span> <span class="n">graph</span><span class="o">.</span><span class="n">namespaces</span><span class="p">():</span>
<span class="k">yield</span> <span class="n">prefix</span><span class="p">,</span> <span class="n">namespace</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.absolutize"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.absolutize">[docs]</a> <span class="k">def</span> <span class="nf">absolutize</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">uri</span><span class="p">,</span> <span class="n">defrag</span><span class="o">=</span><span class="mi">1</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">UnSupportedAggregateOperation</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.parse"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.parse">[docs]</a> <span class="k">def</span> <span class="nf">parse</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">source</span><span class="p">,</span> <span class="n">publicID</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">format</span><span class="o">=</span><span class="s">"xml"</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">ModificationException</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.n3"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.n3">[docs]</a> <span class="k">def</span> <span class="nf">n3</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">UnSupportedAggregateOperation</span><span class="p">()</span>
</div>
<div class="viewcode-block" id="ReadOnlyGraphAggregate.__reduce__"><a class="viewcode-back" href="../../apidocs/rdflib.html#rdflib.graph.ReadOnlyGraphAggregate.__reduce__">[docs]</a> <span class="k">def</span> <span class="nf">__reduce__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">UnSupportedAggregateOperation</span><span class="p">()</span>
</div></div>
<span class="k">def</span> <span class="nf">_assertnode</span><span class="p">(</span><span class="o">*</span><span class="n">terms</span><span class="p">):</span>
<span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="n">terms</span><span class="p">:</span>
<span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">t</span><span class="p">,</span> <span class="n">Node</span><span class="p">),</span> \
<span class="s">'Term </span><span class="si">%s</span><span class="s"> must be an rdflib term'</span> <span class="o">%</span> <span class="p">(</span><span class="n">t</span><span class="p">,)</span>
<span class="k">return</span> <span class="bp">True</span>
<span class="k">def</span> <span class="nf">test</span><span class="p">():</span>
<span class="kn">import</span> <span class="nn">doctest</span>
<span class="n">doctest</span><span class="o">.</span><span class="n">testmod</span><span class="p">()</span>
<span class="k">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">'__main__'</span><span class="p">:</span>
<span class="n">test</span><span class="p">()</span>
</pre></div>
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