diff --git a/Tests/test_image_resample.py b/Tests/test_image_resample.py
index c891ae34e..28568038e 100644
--- a/Tests/test_image_resample.py
+++ b/Tests/test_image_resample.py
@@ -179,7 +179,6 @@ class TestImagingCoreResampleAccuracy:
         for channel in case.split():
             self.check_case(channel, self.make_sample(data, (10, 10)))
 
-
     @pytest.mark.parametrize("mode", ("RGBX", "RGB", "La", "L"))
     def test_enlarge_box(self, mode: str) -> None:
         case = self.make_case(mode, (2, 2), 0xE1)
@@ -341,7 +340,9 @@ class TestCoreResampleAlphaCorrect:
         self.run_levels_case(case.resize((512, 32), Image.Resampling.HAMMING))
         self.run_levels_case(case.resize((512, 32), Image.Resampling.BICUBIC))
         self.run_levels_case(case.resize((512, 32), Image.Resampling.LANCZOS))
-        self.run_levels_case(case.resize((512, 32), Image.Resampling.MAGIC_KERNEL_SHARP_2021))
+        self.run_levels_case(
+            case.resize((512, 32), Image.Resampling.MAGIC_KERNEL_SHARP_2021)
+        )
 
     @pytest.mark.xfail(reason="Current implementation isn't precise enough")
     def test_levels_la(self) -> None:
@@ -351,7 +352,9 @@ class TestCoreResampleAlphaCorrect:
         self.run_levels_case(case.resize((512, 32), Image.Resampling.HAMMING))
         self.run_levels_case(case.resize((512, 32), Image.Resampling.BICUBIC))
         self.run_levels_case(case.resize((512, 32), Image.Resampling.LANCZOS))
-        self.run_levels_case(case.resize((512, 32), Image.Resampling.MAGIC_KERNEL_SHARP_2021))
+        self.run_levels_case(
+            case.resize((512, 32), Image.Resampling.MAGIC_KERNEL_SHARP_2021)
+        )
 
     def make_dirty_case(
         self, mode: str, clean_pixel: tuple[int, ...], dirty_pixel: tuple[int, ...]
@@ -395,7 +398,8 @@ class TestCoreResampleAlphaCorrect:
             case.resize((20, 20), Image.Resampling.LANCZOS), (255, 255, 0)
         )
         self.run_dirty_case(
-            case.resize((20, 20), Image.Resampling.MAGIC_KERNEL_SHARP_2021), (255, 255, 0)
+            case.resize((20, 20), Image.Resampling.MAGIC_KERNEL_SHARP_2021),
+            (255, 255, 0),
         )
 
     def test_dirty_pixels_la(self) -> None:
@@ -405,7 +409,9 @@ class TestCoreResampleAlphaCorrect:
         self.run_dirty_case(case.resize((20, 20), Image.Resampling.HAMMING), (255,))
         self.run_dirty_case(case.resize((20, 20), Image.Resampling.BICUBIC), (255,))
         self.run_dirty_case(case.resize((20, 20), Image.Resampling.LANCZOS), (255,))
-        self.run_dirty_case(case.resize((20, 20), Image.Resampling.MAGIC_KERNEL_SHARP_2021), (255,))
+        self.run_dirty_case(
+            case.resize((20, 20), Image.Resampling.MAGIC_KERNEL_SHARP_2021), (255,)
+        )
 
 
 class TestCoreResamplePasses:
diff --git a/src/PIL/Image.py b/src/PIL/Image.py
index 23a7b8b0f..662e6c0bc 100644
--- a/src/PIL/Image.py
+++ b/src/PIL/Image.py
@@ -2259,7 +2259,10 @@ class Image:
                 for filter in (
                     (Resampling.NEAREST, "Image.Resampling.NEAREST"),
                     (Resampling.LANCZOS, "Image.Resampling.LANCZOS"),
-                    (Resampling.MAGIC_KERNEL_SHARP_2021, "Image.Resampling.MAGIC_KERNEL_SHARP_2021"),
+                    (
+                        Resampling.MAGIC_KERNEL_SHARP_2021,
+                        "Image.Resampling.MAGIC_KERNEL_SHARP_2021",
+                    ),
                     (Resampling.BILINEAR, "Image.Resampling.BILINEAR"),
                     (Resampling.BICUBIC, "Image.Resampling.BICUBIC"),
                     (Resampling.BOX, "Image.Resampling.BOX"),
@@ -2930,7 +2933,12 @@ class Image:
             Resampling.BILINEAR,
             Resampling.BICUBIC,
         ):
-            if resample in (Resampling.BOX, Resampling.HAMMING, Resampling.LANCZOS, Resampling.MAGIC_KERNEL_SHARP_2021):
+            if resample in (
+                Resampling.BOX,
+                Resampling.HAMMING,
+                Resampling.LANCZOS,
+                Resampling.MAGIC_KERNEL_SHARP_2021,
+            ):
                 unusable: dict[int, str] = {
                     Resampling.BOX: "Image.Resampling.BOX",
                     Resampling.HAMMING: "Image.Resampling.HAMMING",
diff --git a/src/libImaging/Resample.c b/src/libImaging/Resample.c
index 43b3f2088..3c3e96b52 100644
--- a/src/libImaging/Resample.c
+++ b/src/libImaging/Resample.c
@@ -83,7 +83,7 @@ static inline double
 magic_kernel_sharp_2021_filter(double x) {
     x = fabs(x);
     if (x < 0.5) {
-        return 577.0 / 576.0 - 239.0 / 144.0 * x *x;
+        return 577.0 / 576.0 - 239.0 / 144.0 * x * x;
     }
     if (x < 1.5) {
         return 35.0 / 36.0 * (x - 1.0) * (x - 239.0 / 140.0);