diff --git a/arraycontext/container/traversal.py b/arraycontext/container/traversal.py
index 642aaf160089c487b59bc914727987ba5e2988c4..c41b464ac0ce3e78ee89e57d1cae713c4b878867 100644
--- a/arraycontext/container/traversal.py
+++ b/arraycontext/container/traversal.py
@@ -681,8 +681,7 @@ def flatten(
                 # NOTE: we can't do much if the array context fails to ravel,
                 # since it is the one responsible for the actual memory layout
                 if hasattr(subary_c, "strides"):
-                    # Mypy has a point: nobody promised a strides attr.
-                    strides_msg = f" and strides {subary_c.strides}"  # type: ignore[attr-defined]  # noqa: E501
+                    strides_msg = f" and strides {subary_c.strides}"
                 else:
                     strides_msg = ""
 
diff --git a/arraycontext/context.py b/arraycontext/context.py
index dcc601e832aea1deb437a36ce6aacc3c4248cdce..2378550e461b497ffce696d44246f3c91522ba98 100644
--- a/arraycontext/context.py
+++ b/arraycontext/context.py
@@ -175,6 +175,7 @@ if TYPE_CHECKING:
 # {{{ typing
 
 ScalarLike = Union[int, float, complex, np.generic]
+
 SelfType = TypeVar("SelfType")
 
 
diff --git a/test/test_utils.py b/test/test_utils.py
index 493b9e7d6536801115993be6dea8367a7e8e5d74..5edf66bc07e826a4d3dab2595a894303b5922ccd 100644
--- a/test/test_utils.py
+++ b/test/test_utils.py
@@ -46,7 +46,7 @@ def test_pt_actx_key_stringification_uniqueness():
 
 # {{{ test_dataclass_array_container
 
-def test_dataclass_array_container():
+def test_dataclass_array_container() -> None:
     from typing import Optional
     from dataclasses import dataclass, field
     from arraycontext import dataclass_array_container
@@ -109,7 +109,7 @@ def test_dataclass_array_container():
 
 # {{{ test_dataclass_container_unions
 
-def test_dataclass_container_unions():
+def test_dataclass_container_unions() -> None:
     from dataclasses import dataclass
     from arraycontext import dataclass_array_container