.. _duplicate-bases:

duplicate-bases / E0241
=======================

**Message emitted:**

``Duplicate bases for class %r``

**Description:**

*Duplicate use of base classes in derived classes raise TypeErrors.*

**Problematic code:**

.. literalinclude:: /data/messages/d/duplicate-bases/bad.py
   :language: python

**Correct code:**

.. literalinclude:: /data/messages/d/duplicate-bases/good.py
   :language: python





Created by the `classes <https://github.com/pylint-dev/pylint/blob/main/pylint/checkers/classes/class_checker.py>`__ checker.