Clean up python2 related code crafts

AUTHORS

@@ -2,6 +2,7 @@ Adam Wróbel <https://adamwrobel.com>
 Adam Ziolkowski <[email protected]>
 Alan Crosswell <[email protected]>
 Anton Shutik <[email protected]>
+Asif Saif Uddin <[email protected]>
 Beni Keller <[email protected]>
 Boris Pleshakov <[email protected]>
 Charlie Allatson <[email protected]>

rest_framework_json_api/relations.py

@@ -29,14 +29,14 @@
 ]
 
 
-class SkipDataMixin(object):
+class SkipDataMixin:
     """
     This workaround skips "data" rendering for relationships
     in order to save some sql queries and improve performance
     """
 
     def __init__(self, *args, **kwargs):
-        super(SkipDataMixin, self).__init__(*args, **kwargs)
+        super().__init__(*args, **kwargs)
 
     def get_attribute(self, instance):
         raise SkipField
@@ -49,7 +49,7 @@ class ManyRelatedFieldWithNoData(SkipDataMixin, DRFManyRelatedField):
     pass
 
 
-class HyperlinkedMixin(object):
+class HyperlinkedMixin:
     self_link_view_name = None
     related_link_view_name = None
     related_link_lookup_field = "pk"
@@ -72,7 +72,7 @@ def __init__(self, self_link_view_name=None, related_link_view_name=None, **kwar
         # implicit `self` argument to be passed.
         self.reverse = reverse
 
-        super(HyperlinkedMixin, self).__init__(**kwargs)
+        super().__init__(**kwargs)
 
     def get_url(self, name, view_name, kwargs, request):
         """
@@ -197,7 +197,7 @@ def __init__(self, **kwargs):
         if model:
             self.model = model
 
-        super(ResourceRelatedField, self).__init__(**kwargs)
+        super().__init__(**kwargs)
 
     def use_pk_only_optimization(self):
         # We need the real object to determine its type...
@@ -245,7 +245,7 @@ def to_internal_value(self, data):
                 received_type=data["type"],
             )
 
-        return super(ResourceRelatedField, self).to_internal_value(data["id"])
+        return super().to_internal_value(data["id"])
 
     def to_representation(self, value):
         if getattr(self, "pk_field", None) is not None:
@@ -329,7 +329,7 @@ class PolymorphicResourceRelatedField(ResourceRelatedField):
 
     def __init__(self, polymorphic_serializer, *args, **kwargs):
         self.polymorphic_serializer = polymorphic_serializer
-        super(PolymorphicResourceRelatedField, self).__init__(*args, **kwargs)
+        super().__init__(*args, **kwargs)
 
     def use_pk_only_optimization(self):
         return False

rest_framework_json_api/renderers.py

@@ -495,12 +495,10 @@ def render_relationship_view(
         links = view.get_links()
         if links:
             render_data.update({"links": links}),
-        return super(JSONRenderer, self).render(
-            render_data, accepted_media_type, renderer_context
-        )
+        return super().render(render_data, accepted_media_type, renderer_context)
 
     def render_errors(self, data, accepted_media_type=None, renderer_context=None):
-        return super(JSONRenderer, self).render(
+        return super().render(
             utils.format_errors(data), accepted_media_type, renderer_context
         )
 
@@ -522,9 +520,7 @@ def render(self, data, accepted_media_type=None, renderer_context=None):
         # be None
         response = renderer_context.get("response", None)
         if response is not None and response.status_code == 204:
-            return super(JSONRenderer, self).render(
-                None, accepted_media_type, renderer_context
-            )
+            return super().render(None, accepted_media_type, renderer_context)
 
         from rest_framework_json_api.views import RelationshipView
 
@@ -536,9 +532,7 @@ def render(self, data, accepted_media_type=None, renderer_context=None):
         # If `resource_name` is set to None then render default as the dev
         # wants to build the output format manually.
         if resource_name is None or resource_name is False:
-            return super(JSONRenderer, self).render(
-                data, accepted_media_type, renderer_context
-            )
+            return super().render(data, accepted_media_type, renderer_context)
 
         json_api_data = data
         # initialize json_api_meta with pagination meta or an empty dict
@@ -664,9 +658,7 @@ def render(self, data, accepted_media_type=None, renderer_context=None):
         if json_api_meta:
             render_data["meta"] = utils.format_field_names(json_api_meta)
 
-        return super(JSONRenderer, self).render(
-            render_data, accepted_media_type, renderer_context
-        )
+        return super().render(render_data, accepted_media_type, renderer_context)
 
 
 class BrowsableAPIRenderer(renderers.BrowsableAPIRenderer):

rest_framework_json_api/serializers.py

@@ -45,7 +45,7 @@ def __init__(self, *args, **kwargs):
         self.model_class = kwargs.pop("model_class", self.model_class)
         # this has no fields but assumptions are made elsewhere that self.fields exists.
         self.fields = {}
-        super(ResourceIdentifierObjectSerializer, self).__init__(*args, **kwargs)
+        super().__init__(*args, **kwargs)
 
     def to_representation(self, instance):
         return {
@@ -69,15 +69,15 @@ def to_internal_value(self, data):
             self.fail("incorrect_type", data_type=type(data["pk"]).__name__)
 
 
-class SparseFieldsetsMixin(object):
+class SparseFieldsetsMixin:
     """
     A serializer mixin that adds support for sparse fieldsets through `fields` query parameter.
 
     Specification: https://jsonapi.org/format/#fetching-sparse-fieldsets
     """
 
     def __init__(self, *args, **kwargs):
-        super(SparseFieldsetsMixin, self).__init__(*args, **kwargs)
+        super().__init__(*args, **kwargs)
         context = kwargs.get("context")
         request = context.get("request") if context else None
 
@@ -107,7 +107,7 @@ def __init__(self, *args, **kwargs):
                         self.fields.pop(field_name)
 
 
-class IncludedResourcesValidationMixin(object):
+class IncludedResourcesValidationMixin:
     """
     A serializer mixin that adds validation of `include` query parameter to
     support compound documents.
@@ -150,7 +150,7 @@ def validate_path(serializer_class, field_path, path):
                     this_serializer_class, included_field_path, included_field_name
                 )
 
-        super(IncludedResourcesValidationMixin, self).__init__(*args, **kwargs)
+        super().__init__(*args, **kwargs)
 
 
 class LazySerializersDict(Mapping):
@@ -302,9 +302,7 @@ class PolymorphicSerializerMetaclass(SerializerMetaclass):
     """
 
     def __new__(cls, name, bases, attrs):
-        new_class = super(PolymorphicSerializerMetaclass, cls).__new__(
-            cls, name, bases, attrs
-        )
+        new_class = super().__new__(cls, name, bases, attrs)
 
         # Ensure initialization is only performed for subclasses of PolymorphicModelSerializer
         # (excluding PolymorphicModelSerializer class itself).
@@ -363,7 +361,7 @@ def get_fields(self):
                 raise Exception(
                     "Cannot get fields from a polymorphic serializer given a queryset"
                 )
-        return super(PolymorphicModelSerializer, self).get_fields()
+        return super().get_fields()
 
     @classmethod
     def get_polymorphic_serializer_for_instance(cls, instance):

rest_framework_json_api/settings.py

@@ -18,7 +18,7 @@
 }
 
 
-class JSONAPISettings(object):
+class JSONAPISettings:
     """
     A settings object that allows JSON:API settings to be access as
     properties.

rest_framework_json_api/views.py

@@ -30,7 +30,7 @@
 )
 
 
-class PreloadIncludesMixin(object):
+class PreloadIncludesMixin:
     """
     This mixin provides a helper attributes to select or prefetch related models
     based on the include specified in the URL.
@@ -60,7 +60,7 @@ def get_prefetch_related(self, include):
         return getattr(self, "prefetch_for_includes", {}).get(include, None)
 
     def get_queryset(self, *args, **kwargs):
-        qs = super(PreloadIncludesMixin, self).get_queryset(*args, **kwargs)
+        qs = super().get_queryset(*args, **kwargs)
 
         included_resources = get_included_resources(
             self.request, self.get_serializer_class()
@@ -78,10 +78,10 @@ def get_queryset(self, *args, **kwargs):
         return qs
 
 
-class AutoPrefetchMixin(object):
+class AutoPrefetchMixin:
     def get_queryset(self, *args, **kwargs):
         """This mixin adds automatic prefetching for OneToOne and ManyToMany fields."""
-        qs = super(AutoPrefetchMixin, self).get_queryset(*args, **kwargs)
+        qs = super().get_queryset(*args, **kwargs)
 
         included_resources = get_included_resources(
             self.request, self.get_serializer_class()
@@ -127,7 +127,7 @@ def get_queryset(self, *args, **kwargs):
         return qs
 
 
-class RelatedMixin(object):
+class RelatedMixin:
     """
     This mixin handles all related entities, whose Serializers are declared in "related_serializers"
     """
@@ -239,7 +239,7 @@ def get_serializer_class(self):
         return self.serializer_class
 
     def __init__(self, **kwargs):
-        super(RelationshipView, self).__init__(**kwargs)
+        super().__init__(**kwargs)
         # We include this simply for dependency injection in tests.
         # We can't add it as a class attributes or it would expect an
         # implicit `self` argument to be passed.