diff --git a/django/contrib/gis/db/models/functions.py b/django/contrib/gis/db/models/functions.py
index 93a5031bd5..85f704c1ef 100644
--- a/django/contrib/gis/db/models/functions.py
+++ b/django/contrib/gis/db/models/functions.py
@@ -101,7 +101,7 @@ class GeomOutputGeoFunc(GeoFunc):
     def __init__(self, *expressions, **extra):
         if 'output_field' not in extra:
             extra['output_field'] = GeometryField()
-        super(GeomOutputGeoFunc, self).__init__(*expressions, **extra)
+        super().__init__(*expressions, **extra)
 
     def resolve_expression(self, *args, **kwargs):
         res = super().resolve_expression(*args, **kwargs)
diff --git a/django/forms/models.py b/django/forms/models.py
index 3b5e1300e0..f4467d2ebb 100644
--- a/django/forms/models.py
+++ b/django/forms/models.py
@@ -1301,7 +1301,8 @@ class ModelMultipleChoiceField(ModelChoiceField):
         if (hasattr(value, '__iter__') and
                 not isinstance(value, str) and
                 not hasattr(value, '_meta')):
-            return [super(ModelMultipleChoiceField, self).prepare_value(v) for v in value]
+            prepare_value = super().prepare_value
+            return [prepare_value(v) for v in value]
         return super().prepare_value(value)
 
     def has_changed(self, initial, data):
diff --git a/tests/model_forms/tests.py b/tests/model_forms/tests.py
index e636d212d8..96f6d6985b 100644
--- a/tests/model_forms/tests.py
+++ b/tests/model_forms/tests.py
@@ -1666,7 +1666,7 @@ class ModelChoiceFieldTests(TestCase):
             category = forms.ModelChoiceField(queryset=None)
 
             def __init__(self, *args, **kwargs):
-                super(ModelChoiceForm, self).__init__(*args, **kwargs)
+                super().__init__(*args, **kwargs)
                 self.fields['category'].queryset = Category.objects.filter(slug__contains='test')
 
         form = ModelChoiceForm()