Additional suppressions for classes

pylint_django/augmentations/__init__.py

@@ -797,6 +797,27 @@ def is_wsgi_application(node):
     )
 
 
+def is_drf_serializer(node):
+    """If class is child of DRF Serializer, it does not have to override create and update methods"""
+    return node_is_subclass(node, "rest_framework.serializers.Serializer")
+
+
+def has_different_docstring(node):
+    """Checks if function of child class has different docstring than parent"""
+    parent = node.parent.frame()
+    meth_node = None
+    if isinstance(parent, ClassDef):
+        for overridden in parent.local_attr_ancestors(node.name):
+            try:
+                meth_node = overridden[node.name]
+            except KeyError:
+                continue
+            if meth_node.doc != node.doc:
+                return True
+        return False
+    return False
+
+
 # Compat helpers
 def pylint_newstyle_classdef_compat(linter, warning_name, augment):
     if not hasattr(NewStyleConflictChecker, "visit_classdef"):
@@ -992,4 +1013,15 @@ def apply_augmentations(linter):
     # wsgi.py
     suppress_message(linter, NameChecker.visit_assignname, "invalid-name", is_wsgi_application)
 
+    # different docstings
+    suppress_message(
+        linter,
+        ClassChecker.visit_functiondef,
+        "useless-super-delegation",
+        has_different_docstring,
+    )
+
+    # not overriding creade and update in DRF Serializer class
+    suppress_message(linter, ClassChecker.visit_classdef, "abstract-method", is_drf_serializer)
+
     apply_wrapped_augmentations()

pylint_django/tests/input/external_drf_noerror_serializer.py

@@ -9,3 +9,7 @@
 class TestSerializerSubclass(serializers.ModelSerializer):
     class Meta:
         pass
+
+
+class TestSerializer(serializers.Serializer):
+    pass

pylint_django/tests/input/func_noerror_docstrings.py

@@ -0,0 +1,10 @@
+# pylint: disable=missing-class-docstring, missing-module-docstring, too-few-public-methods, missing-function-docstring, no-method-argument, no-self-use, too-many-function-args
+class Parent:
+    def test():
+        return 0
+
+
+class ChildDoc(Parent):
+    def test():
+        """Difference"""
+        return super().test()