diff --git a/src/python/bezier/hazmat/algebraic_intersection.py b/src/python/bezier/hazmat/algebraic_intersection.py
index 531f5a07..9c7225a6 100644
--- a/src/python/bezier/hazmat/algebraic_intersection.py
+++ b/src/python/bezier/hazmat/algebraic_intersection.py
@@ -715,9 +715,9 @@ def bernstein_companion(coeffs):
 
     companion = np.zeros((effective_degree, effective_degree), order="F")
     # pylint: disable=unsupported-assignment-operation
-    companion.flat[
-        effective_degree :: effective_degree + 1  # noqa: E203
-    ] = 1.0
+    companion.flat[effective_degree :: effective_degree + 1] = (  # noqa: E203
+        1.0
+    )
     # pylint: enable=unsupported-assignment-operation
     companion[0, :] = -sigma_coeffs[::-1]
     return companion, degree, effective_degree
diff --git a/tests/unit/test__symbolic.py b/tests/unit/test__symbolic.py
index 0d422525..76896a12 100644
--- a/tests/unit/test__symbolic.py
+++ b/tests/unit/test__symbolic.py
@@ -124,12 +124,7 @@ def test_it(self):
         f_polynomial = self._call_function_under_test(x_fn, y_fn, s)
 
         expected = (
-            x_sym**2
-            + 2 * x_sym * y_sym
-            - 3 * x_sym
-            + y_sym**2
-            - 4 * y_sym
-            + 3
+            x_sym**2 + 2 * x_sym * y_sym - 3 * x_sym + y_sym**2 - 4 * y_sym + 3
         )
         assert sympy_equal(f_polynomial, expected)
 
diff --git a/tests/unit/test_curve.py b/tests/unit/test_curve.py
index 1a4e159f..c2036500 100644
--- a/tests/unit/test_curve.py
+++ b/tests/unit/test_curve.py
@@ -249,9 +249,7 @@ def _intersect_helper(self, **kwargs):
         right = self._make_one(nodes_right, 2)
         result = left.intersect(right, **kwargs)
         expected = np.asfortranarray([[1.0], [2.0]]) / 3.0
-        self.assertTrue(
-            np.allclose(result, expected, atol=0.0, rtol=0.5**52)
-        )
+        self.assertTrue(np.allclose(result, expected, atol=0.0, rtol=0.5**52))
 
     def test_intersect(self):
         self._intersect_helper()