.. _missing-param-doc:

missing-param-doc / W9015
=========================

**Message emitted:**

"%s" missing in parameter documentation

**Description:**

*Please add parameter declarations for all parameters.*

**Problematic code:**

.. literalinclude:: /data/messages/m/missing-param-doc/bad.py
   :language: python

**Correct code:**

.. literalinclude:: /data/messages/m/missing-param-doc/good.py
   :language: python




.. note::
  This message is emitted by the optional :ref:`'parameter_documentation'<pylint.extensions.docparams>`
   checker which requires the ``pylint.extensions.docparams`` plugin to be loaded.

Created by the `parameter_documentation <https://github.com/PyCQA/pylint/blob/main/pylint/extensions/docparams.py>`__ checker.