--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/planemo/lib/python3.7/site-packages/rdflib/resource.py	Fri Jul 31 00:32:28 2020 -0400
@@ -0,0 +1,483 @@
+# -*- coding: utf-8 -*-
+from rdflib import py3compat
+
+__doc__ = py3compat.format_doctest_out("""
+The :class:`~rdflib.resource.Resource` class wraps a
+:class:`~rdflib.graph.Graph`
+and a resource reference (i.e. a :class:`rdflib.term.URIRef` or
+:class:`rdflib.term.BNode`) to support a resource-oriented way of
+working with a graph.
+
+It contains methods directly corresponding to those methods of the Graph
+interface that relate to reading and writing data. The difference is that a
+Resource also binds a resource identifier, making it possible to work without
+tracking both the graph and a current subject. This makes for a "resource
+oriented" style, as compared to the triple orientation of the Graph API.
+
+Resulting generators are also wrapped so that any resource reference values
+(:class:`rdflib.term.URIRef`s and :class:`rdflib.term.BNode`s) are in turn
+wrapped as Resources. (Note that this behaviour differs from the corresponding
+methods in :class:`~rdflib.graph.Graph`, where no such conversion takes place.)
+
+
+Basic Usage Scenario
+--------------------
+
+Start by importing things we need and define some namespaces::
+
+    >>> from rdflib import *
+    >>> FOAF = Namespace("http://xmlns.com/foaf/0.1/")
+    >>> CV = Namespace("http://purl.org/captsolo/resume-rdf/0.2/cv#")
+
+Load some RDF data::
+
+    >>> graph = Graph().parse(format='n3', data='''
+    ... @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+    ... @prefix xsd: <http://www.w3.org/2001/XMLSchema#>.
+    ... @prefix foaf: <http://xmlns.com/foaf/0.1/> .
+    ... @prefix cv: <http://purl.org/captsolo/resume-rdf/0.2/cv#> .
+    ...
+    ... @base <http://example.org/> .
+    ...
+    ... </person/some1#self> a foaf:Person;
+    ...     rdfs:comment "Just a Python & RDF hacker."@en;
+    ...     foaf:depiction </images/person/some1.jpg>;
+    ...     foaf:homepage <http://example.net/>;
+    ...     foaf:name "Some Body" .
+    ...
+    ... </images/person/some1.jpg> a foaf:Image;
+    ...     rdfs:label "some 1"@en;
+    ...     rdfs:comment "Just an image"@en;
+    ...     foaf:thumbnail </images/person/some1-thumb.jpg> .
+    ...
+    ... </images/person/some1-thumb.jpg> a foaf:Image .
+    ...
+    ... [] a cv:CV;
+    ...     cv:aboutPerson </person/some1#self>;
+    ...     cv:hasWorkHistory [ cv:employedIn </#company>;
+    ...             cv:startDate "2009-09-04"^^xsd:date ] .
+    ... ''')
+
+Create a Resource::
+
+    >>> person = Resource(
+    ...     graph, URIRef("http://example.org/person/some1#self"))
+
+Retrieve some basic facts::
+
+    >>> person.identifier
+    rdflib.term.URIRef(%(u)s'http://example.org/person/some1#self')
+
+    >>> person.value(FOAF.name)
+    rdflib.term.Literal(%(u)s'Some Body')
+
+    >>> person.value(RDFS.comment)
+    rdflib.term.Literal(%(u)s'Just a Python & RDF hacker.', lang=%(u)s'en')
+
+Resources can be sliced (like graphs, but the subject is fixed)::
+
+    >>> for name in person[FOAF.name]:
+    ...     print(name)
+    Some Body
+    >>> person[FOAF.name : Literal("Some Body")]
+    True
+
+Resources as unicode are represented by their identifiers as unicode::
+
+    >>> %(unicode)s(person)  #doctest: +SKIP
+    %(u)s'Resource(http://example.org/person/some1#self'
+
+Resource references are also Resources, so you can easily get e.g. a qname
+for the type of a resource, like::
+
+    >>> person.value(RDF.type).qname()
+    %(u)s'foaf:Person'
+
+Or for the predicates of a resource::
+
+    >>> sorted(
+    ...     p.qname() for p in person.predicates()
+    ... )  #doctest: +NORMALIZE_WHITESPACE +SKIP
+    [%(u)s'foaf:depiction', %(u)s'foaf:homepage',
+     %(u)s'foaf:name', %(u)s'rdf:type', %(u)s'rdfs:comment']
+
+Follow relations and get more data from their Resources as well::
+
+    >>> for pic in person.objects(FOAF.depiction):
+    ...     print(pic.identifier)
+    ...     print(pic.value(RDF.type).qname())
+    ...     print(pic.label())
+    ...     print(pic.comment())
+    ...     print(pic.value(FOAF.thumbnail).identifier)
+    http://example.org/images/person/some1.jpg
+    foaf:Image
+    some 1
+    Just an image
+    http://example.org/images/person/some1-thumb.jpg
+
+    >>> for cv in person.subjects(CV.aboutPerson):
+    ...     work = list(cv.objects(CV.hasWorkHistory))[0]
+    ...     print(work.value(CV.employedIn).identifier)
+    ...     print(work.value(CV.startDate))
+    http://example.org/#company
+    2009-09-04
+
+It's just as easy to work with the predicates of a resource::
+
+    >>> for s, p in person.subject_predicates():
+    ...     print(s.value(RDF.type).qname())
+    ...     print(p.qname())
+    ...     for s, o in p.subject_objects():
+    ...         print(s.value(RDF.type).qname())
+    ...         print(o.value(RDF.type).qname())
+    cv:CV
+    cv:aboutPerson
+    cv:CV
+    foaf:Person
+
+This is useful for e.g. inspection::
+
+    >>> thumb_ref = URIRef("http://example.org/images/person/some1-thumb.jpg")
+    >>> thumb = Resource(graph, thumb_ref)
+    >>> for p, o in thumb.predicate_objects():
+    ...     print(p.qname())
+    ...     print(o.qname())
+    rdf:type
+    foaf:Image
+
+Similarly, adding, setting and removing data is easy::
+
+    >>> thumb.add(RDFS.label, Literal("thumb"))
+    >>> print(thumb.label())
+    thumb
+    >>> thumb.set(RDFS.label, Literal("thumbnail"))
+    >>> print(thumb.label())
+    thumbnail
+    >>> thumb.remove(RDFS.label)
+    >>> list(thumb.objects(RDFS.label))
+    []
+
+
+Schema Example
+--------------
+
+With this artificial schema data::
+
+    >>> graph = Graph().parse(format='n3', data='''
+    ... @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+    ... @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+    ... @prefix owl: <http://www.w3.org/2002/07/owl#> .
+    ... @prefix v: <http://example.org/def/v#> .
+    ...
+    ... v:Artifact a owl:Class .
+    ...
+    ... v:Document a owl:Class;
+    ...     rdfs:subClassOf v:Artifact .
+    ...
+    ... v:Paper a owl:Class;
+    ...     rdfs:subClassOf v:Document .
+    ...
+    ... v:Choice owl:oneOf (v:One v:Other) .
+    ...
+    ... v:Stuff a rdf:Seq; rdf:_1 v:One; rdf:_2 v:Other .
+    ...
+    ... ''')
+
+From this class::
+
+    >>> artifact = Resource(graph, URIRef("http://example.org/def/v#Artifact"))
+
+we can get at subclasses::
+
+    >>> subclasses = list(artifact.transitive_subjects(RDFS.subClassOf))
+    >>> [c.qname() for c in subclasses]
+    [%(u)s'v:Artifact', %(u)s'v:Document', %(u)s'v:Paper']
+
+and superclasses from the last subclass::
+
+    >>> [c.qname() for c in subclasses[-1].transitive_objects(RDFS.subClassOf)]
+    [%(u)s'v:Paper', %(u)s'v:Document', %(u)s'v:Artifact']
+
+Get items from the Choice::
+
+    >>> choice = Resource(graph, URIRef("http://example.org/def/v#Choice"))
+    >>> [it.qname() for it in choice.value(OWL.oneOf).items()]
+    [%(u)s'v:One', %(u)s'v:Other']
+
+And the sequence of Stuff::
+
+    >>> stuff = Resource(graph, URIRef("http://example.org/def/v#Stuff"))
+    >>> [it.qname() for it in stuff.seq()]
+    [%(u)s'v:One', %(u)s'v:Other']
+
+On add, other resources are auto-unboxed:
+    >>> paper = Resource(graph, URIRef("http://example.org/def/v#Paper"))
+    >>> paper.add(RDFS.subClassOf, artifact)
+    >>> artifact in paper.objects(RDFS.subClassOf) # checks Resource instance
+    True
+    >>> (paper._identifier, RDFS.subClassOf, artifact._identifier) in graph
+    True
+
+
+Technical Details
+-----------------
+
+Comparison is based on graph and identifier::
+
+    >>> g1 = Graph()
+    >>> t1 = Resource(g1, URIRef("http://example.org/thing"))
+    >>> t2 = Resource(g1, URIRef("http://example.org/thing"))
+    >>> t3 = Resource(g1, URIRef("http://example.org/other"))
+    >>> t4 = Resource(Graph(), URIRef("http://example.org/other"))
+
+    >>> t1 is t2
+    False
+
+    >>> t1 == t2
+    True
+    >>> t1 != t2
+    False
+
+    >>> t1 == t3
+    False
+    >>> t1 != t3
+    True
+
+    >>> t3 != t4
+    True
+
+    >>> t3 < t1 and t1 > t3
+    True
+    >>> t1 >= t1 and t1 >= t3
+    True
+    >>> t1 <= t1 and t3 <= t1
+    True
+
+    >>> t1 < t1 or t1 < t3 or t3 > t1 or t3 > t3
+    False
+
+Hash is computed from graph and identifier::
+
+    >>> g1 = Graph()
+    >>> t1 = Resource(g1, URIRef("http://example.org/thing"))
+
+    >>> hash(t1) == hash(Resource(g1, URIRef("http://example.org/thing")))
+    True
+
+    >>> hash(t1) == hash(Resource(Graph(), t1.identifier))
+    False
+    >>> hash(t1) == hash(Resource(Graph(), URIRef("http://example.org/thing")))
+    False
+
+The Resource class is suitable as a base class for mapper toolkits. For
+example, consider this utility for accessing RDF properties via qname-like
+attributes::
+
+    >>> class Item(Resource):
+    ...
+    ...     def __getattr__(self, p):
+    ...         return list(self.objects(self._to_ref(*p.split('_', 1))))
+    ...
+    ...     def _to_ref(self, pfx, name):
+    ...         return URIRef(self._graph.store.namespace(pfx) + name)
+
+It works as follows::
+
+    >>> graph = Graph().parse(format='n3', data='''
+    ... @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+    ... @prefix foaf: <http://xmlns.com/foaf/0.1/> .
+    ...
+    ... @base <http://example.org/> .
+    ... </person/some1#self>
+    ...     foaf:name "Some Body";
+    ...     foaf:depiction </images/person/some1.jpg> .
+    ... </images/person/some1.jpg> rdfs:comment "Just an image"@en .
+    ... ''')
+
+    >>> person = Item(graph, URIRef("http://example.org/person/some1#self"))
+
+    >>> print(person.foaf_name[0])
+    Some Body
+
+The mechanism for wrapping references as resources cooperates with subclasses.
+Therefore, accessing referenced resources automatically creates new ``Item``
+objects::
+
+    >>> isinstance(person.foaf_depiction[0], Item)
+    True
+
+    >>> print(person.foaf_depiction[0].rdfs_comment[0])
+    Just an image
+
+""")
+
+from rdflib.term import Node, BNode, URIRef
+from rdflib.namespace import RDF
+from rdflib.paths import Path
+
+__all__ = ['Resource']
+
+
+class Resource(object):
+
+    def __init__(self, graph, subject):
+        self._graph = graph
+        self._identifier = subject
+
+    graph = property(lambda self: self._graph)
+
+    identifier = property(lambda self: self._identifier)
+
+    def __hash__(self):
+        return hash(Resource) ^ hash(self._graph) ^ hash(self._identifier)
+
+    def __eq__(self, other):
+        return (isinstance(other, Resource) and
+                self._graph == other._graph and
+                self._identifier == other._identifier)
+
+    __ne__ = lambda self, other: not self == other
+
+    def __lt__(self, other):
+        if isinstance(other, Resource):
+            return self._identifier < other._identifier
+        else:
+            return False
+
+    __gt__ = lambda self, other: not (self < other or self == other)
+    __le__ = lambda self, other: self < other or self == other
+    __ge__ = lambda self, other: not self < other
+
+    def __unicode__(self):
+        return str(self._identifier)
+
+    if py3compat.PY3:
+        __str__ = __unicode__
+
+    def add(self, p, o):
+        if isinstance(o, Resource):
+            o = o._identifier
+
+        self._graph.add((self._identifier, p, o))
+
+    def remove(self, p, o=None):
+        if isinstance(o, Resource):
+            o = o._identifier
+
+        self._graph.remove((self._identifier, p, o))
+
+    def set(self, p, o):
+        if isinstance(o, Resource):
+            o = o._identifier
+
+        self._graph.set((self._identifier, p, o))
+
+    def subjects(self, predicate=None):  # rev
+        return self._resources(
+            self._graph.subjects(predicate, self._identifier))
+
+    def predicates(self, o=None):
+        if isinstance(o, Resource):
+            o = o._identifier
+
+        return self._resources(
+            self._graph.predicates(self._identifier, o))
+
+    def objects(self, predicate=None):
+        return self._resources(
+            self._graph.objects(self._identifier, predicate))
+
+    def subject_predicates(self):
+        return self._resource_pairs(
+            self._graph.subject_predicates(self._identifier))
+
+    def subject_objects(self):
+        return self._resource_pairs(
+            self._graph.subject_objects(self._identifier))
+
+    def predicate_objects(self):
+        return self._resource_pairs(
+            self._graph.predicate_objects(self._identifier))
+
+    def value(self, p=RDF.value, o=None, default=None, any=True):
+        if isinstance(o, Resource):
+            o = o._identifier
+
+        return self._cast(
+            self._graph.value(self._identifier, p, o, default, any))
+
+    def label(self):
+        return self._graph.label(self._identifier)
+
+    def comment(self):
+        return self._graph.comment(self._identifier)
+
+    def items(self):
+        return self._resources(self._graph.items(self._identifier))
+
+    def transitive_objects(self, predicate, remember=None):
+        return self._resources(self._graph.transitive_objects(
+            self._identifier, predicate, remember))
+
+    def transitive_subjects(self, predicate, remember=None):
+        return self._resources(self._graph.transitive_subjects(
+            predicate, self._identifier, remember))
+
+    def seq(self):
+        return self._resources(self._graph.seq(self._identifier))
+
+    def qname(self):
+        return self._graph.qname(self._identifier)
+
+    def _resource_pairs(self, pairs):
+        for s1, s2 in pairs:
+            yield self._cast(s1), self._cast(s2)
+
+    def _resource_triples(self, triples):
+        for s,p,o in triples:
+            yield self._cast(s), self._cast(p), self._cast(o)
+
+    def _resources(self, nodes):
+        for node in nodes:
+            yield self._cast(node)
+
+    def _cast(self, node):
+        if isinstance(node, (BNode, URIRef)):
+            return self._new(node)
+        else:
+            return node
+
+    def __iter__(self):
+        return self._resource_triples(self._graph.triples((self.identifier, None, None)))
+
+    def __getitem__(self, item):
+        if isinstance(item, slice):
+            if item.step:
+                raise TypeError("Resources fix the subject for slicing, and can only be sliced by predicate/object. ")
+            p,o=item.start,item.stop
+            if isinstance(p, Resource): p = p._identifier
+            if isinstance(o, Resource): o = o._identifier
+            if p is None and o is None:
+                return self.predicate_objects()
+            elif p is None:
+                return self.predicates(o)
+            elif o is None:
+                return self.objects(p)
+            else:
+                return (self.identifier, p, o) in self._graph
+        elif isinstance(item, (Node, Path)):
+            return self.objects(item)
+        else:
+            raise TypeError("You can only index a resource by a single rdflib term, a slice of rdflib terms, not %s (%s)"%(item, type(item)))
+
+    def __setitem__(self, item, value):
+        self.set(item, value)
+
+    def _new(self, subject):
+        return type(self)(self._graph, subject)
+
+    def __str__(self):
+        return 'Resource(%s)' % self._identifier
+
+    def __repr__(self):
+        return 'Resource(%s,%s)' % (self._graph, self._identifier)