diff --git a/blender_asset_tracer/blendfile/__init__.py b/blender_asset_tracer/blendfile/__init__.py
index 9516b78..3894b16 100644
--- a/blender_asset_tracer/blendfile/__init__.py
+++ b/blender_asset_tracer/blendfile/__init__.py
@@ -626,7 +626,6 @@ class BlendFileBlock:
             the_bytes = the_bytes[:first_null]
         return the_bytes.decode()
 
-
     def get_recursive_iter(
         self,
         path: dna.FieldPath,
diff --git a/blender_asset_tracer/pack/__init__.py b/blender_asset_tracer/pack/__init__.py
index 3a60bc4..f3ac76c 100644
--- a/blender_asset_tracer/pack/__init__.py
+++ b/blender_asset_tracer/pack/__init__.py
@@ -102,7 +102,7 @@ class Packer:
         *,
         noop=False,
         compress=False,
-        relative_only=False
+        relative_only=False,
     ) -> None:
         self.blendfile = bfile
         self.project = project
@@ -475,8 +475,9 @@ class Packer:
             # It is *not* used for any disk I/O, since the file may not even
             # exist on the local filesystem.
             bfile_pp = action.new_path
-            assert bfile_pp is not None, \
-                f"Action {action.path_action.name} on {bfile_path} has no final path set, unable to process"
+            assert (
+                bfile_pp is not None
+            ), f"Action {action.path_action.name} on {bfile_path} has no final path set, unable to process"
 
             # Use tempfile to create a unique name in our temporary directoy.
             # The file should be deleted when self.close() is called, and not
diff --git a/tests/test_bpathlib.py b/tests/test_bpathlib.py
index 6ec9b37..aa0a757 100644
--- a/tests/test_bpathlib.py
+++ b/tests/test_bpathlib.py
@@ -39,7 +39,7 @@ class BlendPathTest(unittest.TestCase):
             PurePath("C:/some/file.blend"), BlendPath(b"C:/some/file.blend").to_path()
         )
         self.assertEqual(
-            PurePath("C:/some/file.blend"), BlendPath(br"C:\some\file.blend").to_path()
+            PurePath("C:/some/file.blend"), BlendPath(rb"C:\some\file.blend").to_path()
         )
 
         with mock.patch("sys.getfilesystemencoding") as mock_getfse:
diff --git a/tests/test_tracer.py b/tests/test_tracer.py
index 34e11ee..bda1519 100644
--- a/tests/test_tracer.py
+++ b/tests/test_tracer.py
@@ -62,6 +62,7 @@ class AssetHoldingBlocksTest(AbstractTracerTest):
         self.assertEqual(965, len(self.bf.blocks))
         self.assertEqual(4, blocks_seen)
 
+
 class DepsTest(AbstractTracerTest):
     @staticmethod
     def field_name(field: dna.Field) -> typing.Optional[str]:
@@ -191,11 +192,11 @@ class DepsTest(AbstractTracerTest):
     def test_seq_image_udim_sequence(self):
         expects = {
             b"IMcube_UDIM.color": Expect(
-                'Image',
-                'name[1024]',
+                "Image",
+                "name[1024]",
                 None,
                 None,
-                b'//cube_UDIM.color.<UDIM>.png',
+                b"//cube_UDIM.color.<UDIM>.png",
                 True,
             ),
         }
diff --git a/tests/test_tracer_file_sequence.py b/tests/test_tracer_file_sequence.py
index a074a12..7bad6de 100644
--- a/tests/test_tracer_file_sequence.py
+++ b/tests/test_tracer_file_sequence.py
@@ -24,7 +24,8 @@ class ExpandFileSequenceTest(AbstractBlendFileTest):
         path = self.blendfiles / "udim/cube_UDIM.color.<UDIM>.png"
         actual = list(file_sequence.expand_sequence(path))
         imgseq = [
-            self.blendfiles / ("udim/cube_UDIM.color.%04d.png" % num) for num in range(1001, 1004)
+            self.blendfiles / ("udim/cube_UDIM.color.%04d.png" % num)
+            for num in range(1001, 1004)
         ]
         self.assertEqual(imgseq, actual)