.. _unhashable-member:

unhashable-member / E1143
=========================

**Message emitted:**

``'%s' is unhashable and can't be used as a %s in a %s``

**Description:**

*Emitted when a dict key or set member is not hashable (i.e. doesn't define __hash__ method).*

**Problematic code:**

.. literalinclude:: /data/messages/u/unhashable-member/bad.py
   :language: python

**Correct code:**

.. literalinclude:: /data/messages/u/unhashable-member/good.py
   :language: python





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