detect attr

Author: sshane

pylint/checkers/utils.py

@@ -1174,7 +1174,8 @@ def class_is_abstract(node: nodes.ClassDef) -> bool:
 
     # As well as directly inherited ABC class
     for base in node.bases:
-        if base.as_string() in ("abc.ABC", "ABC"):
+        base_class_name = base.attrname if isinstance(base, astroid.Attribute) else base.as_string()
+        if base_class_name == "ABC":
             # abc.ABC inheritance
             return True