work and test class

Author: sshane

pylint/checkers/utils.py

@@ -1172,8 +1172,9 @@ def class_is_abstract(node: nodes.ClassDef) -> bool:
         if meta.name == "ABCMeta" and meta.root().name in ABC_MODULES:
             return True
 
-    for ancestor in node.ancestors():
-        if ancestor.name == "ABC" and ancestor.root().name in ABC_MODULES:
+    # As well as directly inherited ABC class
+    for base in node.bases:
+        if base.as_string() in ("abc.ABC", "ABC"):
             # abc.ABC inheritance
             return True
 

tests/functional/a/abstract/abstract_method.py

@@ -44,7 +44,16 @@ class AbstractD(AbstractB, metaclass=abc.ABCMeta):
     """
 
 
-class Concrete(Abstract): # [abstract-method]
+class ConcreteA(AbstractC):
+    """
+    Concrete class.
+
+    Should trigger a warning since this class does
+    not directly inherit from abc.ABC.
+    """
+
+
+class ConcreteB(Abstract): # [abstract-method]
     """Concrete class"""
 
     def aaaa(self):