Suppress ResolveErrors from Class.mro in unimplemented_abstract_methods.

1 files changed, 4 insertions, 0 deletions

diff --git a/checkers/utils.py b/checkers/utils.py
index 2df59e1..2cb01d5 100644
--- a/checkers/utils.py
+++ b/checkers/utils.py
@@ -533,6 +533,10 @@ def unimplemented_abstract_methods(node, is_abstract_cb=decorated_with_abc):
     except NotImplementedError:
         # Old style class, it will not have a mro.
         return {}
+    except astroid.ResolveError:
+        # Probably inconsistent hierarchy, don'try
+        # to figure this out here.
+        return {}
     for ancestor in mro:
         for obj in ancestor.values():
             infered = obj