Uses black for code formatting

.github/workflows/tests.yml

@@ -94,6 +94,8 @@ jobs:
         with:
           python-version: "3.10"
       - run: pip install --upgrade -r python/requirements.dev.txt
+      - run: python -m black  --check --diff --color .
+        working-directory: ./python
       - run: maturin sdist -m python/Cargo.toml
       - run: pip install target/wheels/*.tar.gz
       - run: python -m unittest

python/pyproject.toml

@@ -28,3 +28,6 @@ Documentation = "https://pyoxigraph.readthedocs.io/"
 Homepage = "https://pyoxigraph.readthedocs.io/"
 Source = "https://github.com/oxigraph/oxigraph/tree/main/python"
 Tracker = "https://github.com/oxigraph/oxigraph/issues"
+
+[tool.black]
+target-version = ['py37']

python/requirements.dev.txt

@@ -1,3 +1,4 @@
+black
 furo
 maturin
 sphinx

python/tests/test_io.py

@@ -6,9 +6,7 @@ from pyoxigraph import *
 
 
 EXAMPLE_TRIPLE = Triple(
-    NamedNode("http://example.com/foo"),
-    NamedNode("http://example.com/p"),
-    Literal("1")
+    NamedNode("http://example.com/foo"), NamedNode("http://example.com/p"), Literal("1")
 )
 
 
@@ -19,7 +17,7 @@ class TestParse(unittest.TestCase):
             fp.flush()
             self.assertEqual(
                 list(parse(fp.name, "text/turtle", base_iri="http://example.com/")),
-                [EXAMPLE_TRIPLE]
+                [EXAMPLE_TRIPLE],
             )
 
     def test_parse_not_existing_file(self):
@@ -28,14 +26,26 @@ class TestParse(unittest.TestCase):
 
     def test_parse_str_io(self):
         self.assertEqual(
-            list(parse(StringIO('<foo> <p> "1" .'), "text/turtle", base_iri="http://example.com/")),
-            [EXAMPLE_TRIPLE]
+            list(
+                parse(
+                    StringIO('<foo> <p> "1" .'),
+                    "text/turtle",
+                    base_iri="http://example.com/",
+                )
+            ),
+            [EXAMPLE_TRIPLE],
         )
 
     def test_parse_bytes_io(self):
         self.assertEqual(
-            list(parse(BytesIO(b'<foo> <p> "1" .'), "text/turtle", base_iri="http://example.com/")),
-            [EXAMPLE_TRIPLE]
+            list(
+                parse(
+                    BytesIO(b'<foo> <p> "1" .'),
+                    "text/turtle",
+                    base_iri="http://example.com/",
+                )
+            ),
+            [EXAMPLE_TRIPLE],
         )
 
     def test_parse_io_error(self):
@@ -50,9 +60,14 @@ class TestSerialize(unittest.TestCase):
     def test_serialize_to_bytes_io(self):
         output = BytesIO()
         serialize([EXAMPLE_TRIPLE], output, "text/turtle")
-        self.assertEqual(output.getvalue(), b'<http://example.com/foo> <http://example.com/p> "1" .\n')
+        self.assertEqual(
+            output.getvalue(),
+            b'<http://example.com/foo> <http://example.com/p> "1" .\n',
+        )
 
     def test_serialize_to_file(self):
         with NamedTemporaryFile() as fp:
             serialize([EXAMPLE_TRIPLE], fp.name, "text/turtle")
-            self.assertEqual(fp.read(), b'<http://example.com/foo> <http://example.com/p> "1" .\n')
+            self.assertEqual(
+                fp.read(), b'<http://example.com/foo> <http://example.com/p> "1" .\n'
+            )

python/tests/test_model.py

@@ -29,8 +29,8 @@ class TestBlankNode(unittest.TestCase):
     def test_equal(self):
         self.assertEqual(BlankNode("foo"), BlankNode("foo"))
         self.assertNotEqual(BlankNode("foo"), BlankNode("bar"))
-        self.assertNotEqual(BlankNode('foo'), NamedNode('http://foo'))
-        self.assertNotEqual(NamedNode('http://foo'), BlankNode('foo'))
+        self.assertNotEqual(BlankNode("foo"), NamedNode("http://foo"))
+        self.assertNotEqual(NamedNode("http://foo"), BlankNode("foo"))
 
 
 class TestLiteral(unittest.TestCase):
@@ -59,10 +59,10 @@ class TestLiteral(unittest.TestCase):
             Literal("foo", language="en", datatype=RDF_LANG_STRING),
             Literal("foo", language="en"),
         )
-        self.assertNotEqual(NamedNode('http://foo'), Literal('foo'))
-        self.assertNotEqual(Literal('foo'), NamedNode('http://foo'))
-        self.assertNotEqual(BlankNode('foo'), Literal('foo'))
-        self.assertNotEqual(Literal('foo'), BlankNode('foo'))
+        self.assertNotEqual(NamedNode("http://foo"), Literal("foo"))
+        self.assertNotEqual(Literal("foo"), NamedNode("http://foo"))
+        self.assertNotEqual(BlankNode("foo"), Literal("foo"))
+        self.assertNotEqual(Literal("foo"), BlankNode("foo"))
 
 
 class TestTriple(unittest.TestCase):
@@ -81,25 +81,32 @@ class TestTriple(unittest.TestCase):
             Triple(
                 NamedNode("http://example.com/ss"),
                 NamedNode("http://example.com/sp"),
-                NamedNode("http://example.com/so")
+                NamedNode("http://example.com/so"),
             ),
             NamedNode("http://example.com/p"),
             Triple(
                 NamedNode("http://example.com/os"),
                 NamedNode("http://example.com/op"),
-                NamedNode("http://example.com/oo")
-            ), )
-        self.assertEqual(t.subject, Triple(
+                NamedNode("http://example.com/oo"),
+            ),
+        )
+        self.assertEqual(
+            t.subject,
+            Triple(
                 NamedNode("http://example.com/ss"),
                 NamedNode("http://example.com/sp"),
-            NamedNode("http://example.com/so")
-        ))
+                NamedNode("http://example.com/so"),
+            ),
+        )
         self.assertEqual(t.predicate, NamedNode("http://example.com/p"))
-        self.assertEqual(t.object, Triple(
+        self.assertEqual(
+            t.object,
+            Triple(
                 NamedNode("http://example.com/os"),
                 NamedNode("http://example.com/op"),
-            NamedNode("http://example.com/oo")
-        ))
+                NamedNode("http://example.com/oo"),
+            ),
+        )
 
     def test_mapping(self):
         t = Triple(

python/tests/test_store.py

@@ -88,7 +88,8 @@ class TestStore(unittest.TestCase):
         results = store.query("CONSTRUCT { ?s ?p ?o } WHERE { ?s ?p ?o }")
         self.assertIsInstance(results, QueryTriples)
         self.assertEqual(
-            set(results), {Triple(foo, bar, baz)},
+            set(results),
+            {Triple(foo, bar, baz)},
         )
 
     def test_select_query(self):
@@ -154,30 +155,34 @@ class TestStore(unittest.TestCase):
 
     def test_update_insert_data(self):
         store = Store()
-        store.update('INSERT DATA { <http://foo> <http://foo> <http://foo> }')
+        store.update("INSERT DATA { <http://foo> <http://foo> <http://foo> }")
         self.assertEqual(len(store), 1)
 
     def test_update_delete_data(self):
         store = Store()
         store.add(Quad(foo, foo, foo))
-        store.update('DELETE DATA { <http://foo> <http://foo> <http://foo> }')
+        store.update("DELETE DATA { <http://foo> <http://foo> <http://foo> }")
         self.assertEqual(len(store), 0)
 
     def test_update_delete_where(self):
         store = Store()
         store.add(Quad(foo, foo, foo))
-        store.update('DELETE WHERE { ?v ?v ?v }')
+        store.update("DELETE WHERE { ?v ?v ?v }")
         self.assertEqual(len(store), 0)
 
     def test_update_load(self):
         store = Store()
-        store.update('LOAD <https://www.w3.org/1999/02/22-rdf-syntax-ns>')
+        store.update("LOAD <https://www.w3.org/1999/02/22-rdf-syntax-ns>")
         self.assertGreater(len(store), 100)
 
     def test_update_star(self):
         store = Store()
-        store.update('PREFIX : <http://www.example.org/> INSERT DATA { :alice :claims << :bob :age 23 >> }')
-        results = store.query('PREFIX : <http://www.example.org/> SELECT ?p ?a WHERE { ?p :claims << :bob :age ?a >> }')
+        store.update(
+            "PREFIX : <http://www.example.org/> INSERT DATA { :alice :claims << :bob :age 23 >> }"
+        )
+        results = store.query(
+            "PREFIX : <http://www.example.org/> SELECT ?p ?a WHERE { ?p :claims << :bob :age ?a >> }"
+        )
         self.assertEqual(len(list(results)), 1)
 
     def test_load_ntriples_to_default_graph(self):
@@ -245,7 +250,8 @@ class TestStore(unittest.TestCase):
         output = BytesIO()
         store.dump(output, "application/n-triples", from_graph=graph)
         self.assertEqual(
-            output.getvalue(), b"<http://foo> <http://bar> <http://baz> .\n",
+            output.getvalue(),
+            b"<http://foo> <http://bar> <http://baz> .\n",
         )
 
     def test_dump_nquads(self):
@@ -264,7 +270,7 @@ class TestStore(unittest.TestCase):
         store = Store()
         store.add(Quad(foo, bar, baz, graph))
         store.dump(file_name, "application/n-quads")
-        with open(file_name, 'rt') as fp:
+        with open(file_name, "rt") as fp:
             file_content = fp.read()
         self.assertEqual(
             file_content,