.. _too-many-ancestors: too-many-ancestors / R0901 ========================== **Message emitted:** ``Too many ancestors (%s/%s)`` **Description:** *Used when class has too many parent classes, try to reduce this to get a simpler (and so easier to use) class.* **Problematic code:** .. literalinclude:: /data/messages/t/too-many-ancestors/bad.py :language: python **Correct code:** .. literalinclude:: /data/messages/t/too-many-ancestors/good.py :language: python Created by the `design `__ checker.