From 7485882997ad3b11219a86ddb2a5c0065b81d431 Mon Sep 17 00:00:00 2001
From: Edmond Chuc <edmond@kurrawong.ai>
Date: Fri, 17 Oct 2025 15:41:53 +1000
Subject: [PATCH 1/2] fix: Dataset.parse now returns Self

---
 rdflib/graph.py                       |  8 +++-----
 rdflib/plugins/parsers/nquads.py      |  2 +-
 test/test_dataset/test_dataset_add.py | 26 ++++++++++++++++++++++++++
 3 files changed, 30 insertions(+), 6 deletions(-)

diff --git a/rdflib/graph.py b/rdflib/graph.py
index bc9ab05f2..90907cde0 100644
--- a/rdflib/graph.py
+++ b/rdflib/graph.py
@@ -2346,8 +2346,7 @@ def parse(
 
         context = self.default_context
         context.parse(source, publicID=publicID, format=format, **args)
-        # TODO: FIXME: This should not return context, but self.
-        return context
+        return self
 
     def __reduce__(self) -> Tuple[Type[Graph], Tuple[Store, _ContextIdentifierType]]:
         return ConjunctiveGraph, (self.store, self.identifier)
@@ -2615,11 +2614,10 @@ def parse(
         (i.e. :attr:`.Dataset.default_context`).
         """
 
-        c = ConjunctiveGraph.parse(
+        ConjunctiveGraph.parse(
             self, source, publicID, format, location, file, data, **args
         )
-        self.graph(c)
-        return c
+        return self
 
     def add_graph(
         self, g: Optional[Union[_ContextIdentifierType, _ContextType, str]]
diff --git a/rdflib/plugins/parsers/nquads.py b/rdflib/plugins/parsers/nquads.py
index 60b793b65..cadcfa28a 100644
--- a/rdflib/plugins/parsers/nquads.py
+++ b/rdflib/plugins/parsers/nquads.py
@@ -7,7 +7,7 @@
 >>> g = ConjunctiveGraph()
 >>> data = open("test/data/nquads.rdflib/example.nquads", "rb")
 >>> g.parse(data, format="nquads") # doctest:+ELLIPSIS
-<Graph identifier=... (<class 'rdflib.graph.Graph'>)>
+<Graph identifier=... (<class 'rdflib.graph.ConjunctiveGraph'>)>
 >>> assert len(g.store) == 449
 >>> # There should be 16 separate contexts
 >>> assert len([x for x in g.store.contexts()]) == 16
diff --git a/test/test_dataset/test_dataset_add.py b/test/test_dataset/test_dataset_add.py
index e2b587613..161dda247 100644
--- a/test/test_dataset/test_dataset_add.py
+++ b/test/test_dataset/test_dataset_add.py
@@ -1,4 +1,5 @@
 from rdflib import RDF, RDFS, Dataset, Graph, URIRef
+from test.data import TEST_DATA_DIR
 
 
 def test_behaviour_where_graph_is_created_via_dataset():
@@ -86,3 +87,28 @@ def test_adding_appends_to_dataset_graph():
     graph = ds.add_graph(another_graph)
     assert len(graph) == 3
     assert len(ds) == 3
+
+
+def test_dataset_parse_return_value():
+    """
+    Test that the return value of ds.parse has the same reference as ds.
+    """
+    ds = Dataset()
+    return_value = ds.parse(
+        source=TEST_DATA_DIR / "nquads.rdflib/example.nquads", format="nquads"
+    )
+    assert len(ds)
+    assert return_value is ds
+
+
+def test_dataset_graphs_excludes_default_graph():
+    """
+    The Dataset.graphs() method should exclude the default graph.
+    """
+    ds = Dataset()
+    ds.parse(source=TEST_DATA_DIR / "nquads.rdflib/example.nquads", format="nquads")
+    assert len(ds)
+    # There are 16 named graphs. Calling Dataset.graphs() with no triple pattern should
+    # return only 16 results and exclude the default graph.
+    # TODO: update this when Dataset.graphs() is updated to exclude the default graph.
+    assert len(list(ds.graphs())) == 17

From 4f2924b98c8ea75d2ce9507d4cd8a9f59027d3d5 Mon Sep 17 00:00:00 2001
From: Edmond Chuc <edmond@kurrawong.ai>
Date: Fri, 17 Oct 2025 15:56:04 +1000
Subject: [PATCH 2/2] chore: remove test that's not relevant for this PR

---
 test/test_dataset/test_dataset_add.py | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/test/test_dataset/test_dataset_add.py b/test/test_dataset/test_dataset_add.py
index 161dda247..a3197ae2e 100644
--- a/test/test_dataset/test_dataset_add.py
+++ b/test/test_dataset/test_dataset_add.py
@@ -99,16 +99,3 @@ def test_dataset_parse_return_value():
     )
     assert len(ds)
     assert return_value is ds
-
-
-def test_dataset_graphs_excludes_default_graph():
-    """
-    The Dataset.graphs() method should exclude the default graph.
-    """
-    ds = Dataset()
-    ds.parse(source=TEST_DATA_DIR / "nquads.rdflib/example.nquads", format="nquads")
-    assert len(ds)
-    # There are 16 named graphs. Calling Dataset.graphs() with no triple pattern should
-    # return only 16 results and exclude the default graph.
-    # TODO: update this when Dataset.graphs() is updated to exclude the default graph.
-    assert len(list(ds.graphs())) == 17