diff --git a/pymatgen/io/vasp/inputs.py b/pymatgen/io/vasp/inputs.py
index 40c60fd372e..47c15a96894 100644
--- a/pymatgen/io/vasp/inputs.py
+++ b/pymatgen/io/vasp/inputs.py
@@ -2892,20 +2892,20 @@ def run_vasp(
 
     @property
     def incar(self) -> Incar:
-        """ INCAR object. """
-        return Incar(self["INCAR"]) if isinstance(self["INCAR"],dict) else self["INCAR"]
+        """INCAR object."""
+        return Incar(self["INCAR"]) if isinstance(self["INCAR"], dict) else self["INCAR"]
 
     @property
     def kpoints(self) -> Kpoints | None:
-        """ KPOINTS object. """
+        """KPOINTS object."""
         return self["KPOINTS"]
-    
+
     @property
     def poscar(self) -> Poscar:
-        """ POSCAR object. """
+        """POSCAR object."""
         return self["POSCAR"]
-    
+
     @property
     def potcar(self) -> Potcar | str | None:
-        """ POTCAR or POTCAR.spec object. """
-        return self[self._potcar_filename]
\ No newline at end of file
+        """POTCAR or POTCAR.spec object."""
+        return self[self._potcar_filename]
diff --git a/tests/io/vasp/test_inputs.py b/tests/io/vasp/test_inputs.py
index a115b8f37b0..e99ecc9bc25 100644
--- a/tests/io/vasp/test_inputs.py
+++ b/tests/io/vasp/test_inputs.py
@@ -1365,24 +1365,20 @@ def test_from_directory(self):
         assert "CONTCAR_Li2O" in vasp_input
 
     def test_input_attr(self):
-        assert all(
-            v == getattr(self.vasp_input, k.lower()) for k, v in self.vasp_input.items()
-        )
+        assert all(v == getattr(self.vasp_input, k.lower()) for k, v in self.vasp_input.items())
 
         vis_potcar_spec = VaspInput(
             self.vasp_input.incar,
             self.vasp_input.kpoints,
             self.vasp_input.poscar,
             "\n".join(self.vasp_input.potcar.symbols),
-            potcar_spec = True
-        )
-        assert all(k in vis_potcar_spec for k in ("INCAR","KPOINTS","POSCAR","POTCAR.spec"))
-        assert all(
-            self.vasp_input[k] == getattr(vis_potcar_spec, k.lower()) 
-            for k in ("INCAR","KPOINTS","POSCAR")
+            potcar_spec=True,
         )
+        assert all(k in vis_potcar_spec for k in ("INCAR", "KPOINTS", "POSCAR", "POTCAR.spec"))
+        assert all(self.vasp_input[k] == getattr(vis_potcar_spec, k.lower()) for k in ("INCAR", "KPOINTS", "POSCAR"))
         assert isinstance(vis_potcar_spec.potcar, str)
 
+
 def test_potcar_summary_stats() -> None:
     potcar_summary_stats = loadfn(POTCAR_STATS_PATH)
 
diff --git a/tests/io/vasp/test_sets.py b/tests/io/vasp/test_sets.py
index 7c7e40e894b..fe181ae578d 100644
--- a/tests/io/vasp/test_sets.py
+++ b/tests/io/vasp/test_sets.py
@@ -671,6 +671,7 @@ def test_get_nedos(self):
         vis.prev_vasprun = vrun
         assert vis._get_nedos(0.1) == pytest.approx(741, abs=1)
 
+
 class TestMPStaticSet(PymatgenTest):
     def setUp(self):
         self.set = MPStaticSet