diff --git a/netbox/dcim/tests/test_models.py b/netbox/dcim/tests/test_models.py
index 8566f969b..03438a441 100644
--- a/netbox/dcim/tests/test_models.py
+++ b/netbox/dcim/tests/test_models.py
@@ -194,14 +194,14 @@ class RackTestCase(TestCase):
         # Validate inventory (front face)
         rack1_inventory_front = self.rack.get_rack_units(face=DeviceFaceChoices.FACE_FRONT)
         self.assertEqual(rack1_inventory_front[-10]['device'], device1)
-        del(rack1_inventory_front[-10])
+        del rack1_inventory_front[-10]
         for u in rack1_inventory_front:
             self.assertIsNone(u['device'])
 
         # Validate inventory (rear face)
         rack1_inventory_rear = self.rack.get_rack_units(face=DeviceFaceChoices.FACE_REAR)
         self.assertEqual(rack1_inventory_rear[-10]['device'], device1)
-        del(rack1_inventory_rear[-10])
+        del rack1_inventory_rear[-10]
         for u in rack1_inventory_rear:
             self.assertIsNone(u['device'])
 
diff --git a/netbox/extras/models/customfields.py b/netbox/extras/models/customfields.py
index 6a8c1dacf..b7d77e550 100644
--- a/netbox/extras/models/customfields.py
+++ b/netbox/extras/models/customfields.py
@@ -169,7 +169,7 @@ class CustomField(ExportTemplatesMixin, WebhooksMixin, ChangeLoggedModel):
             model = ct.model_class()
             instances = model.objects.filter(**{f'custom_field_data__{self.name}__isnull': False})
             for instance in instances:
-                del(instance.custom_field_data[self.name])
+                del instance.custom_field_data[self.name]
             model.objects.bulk_update(instances, ['custom_field_data'], batch_size=100)
 
     def rename_object_data(self, old_name, new_name):
diff --git a/netbox/extras/tests/test_customfields.py b/netbox/extras/tests/test_customfields.py
index 8dcb53b09..946999bc2 100644
--- a/netbox/extras/tests/test_customfields.py
+++ b/netbox/extras/tests/test_customfields.py
@@ -992,7 +992,7 @@ class CustomFieldModelTest(TestCase):
         with self.assertRaises(ValidationError):
             site.clean()
 
-        del(site.cf['bar'])
+        del site.cf['bar']
         site.clean()
 
     def test_missing_required_field(self):
diff --git a/netbox/extras/tests/test_registry.py b/netbox/extras/tests/test_registry.py
index 53ba6584a..38a6b9f83 100644
--- a/netbox/extras/tests/test_registry.py
+++ b/netbox/extras/tests/test_registry.py
@@ -30,4 +30,4 @@ class RegistryTest(TestCase):
         reg['foo'] = 123
 
         with self.assertRaises(TypeError):
-            del(reg['foo'])
+            del reg['foo']
diff --git a/netbox/ipam/forms/models.py b/netbox/ipam/forms/models.py
index e86abc672..d3421f22b 100644
--- a/netbox/ipam/forms/models.py
+++ b/netbox/ipam/forms/models.py
@@ -848,7 +848,7 @@ class ServiceCreateForm(ServiceForm):
         # Fields which may be populated from a ServiceTemplate are not required
         for field in ('name', 'protocol', 'ports'):
             self.fields[field].required = False
-            del(self.fields[field].widget.attrs['required'])
+            del self.fields[field].widget.attrs['required']
 
     def clean(self):
         if self.cleaned_data['service_template']: