ref-manual/classes.rst: document the python_pdm class

This class was added by commit 20758865e9e0 ("classes/python_pdm: add
PEP517 build class for PDM") in OE-Core.

Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
(From yocto-docs rev: bbec8adf0fb2dfa8b34e631249a6d6e71aa08386)

Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/documentation/ref-manual/classes.rst b/documentation/ref-manual/classes.rst
index b92b9e28b3..6389063535 100644
--- a/documentation/ref-manual/classes.rst
+++ b/documentation/ref-manual/classes.rst
@@ -2174,6 +2174,19 @@ meson-python build system.
 
 Internally this uses the :ref:`ref-classes-python_pep517` class.
 
+.. _ref-classes-python_pdm:
+
+``python_pdm``
+=================
+
+The :ref:`ref-classes-python_pdm` class adds support for building Python
+packages with the `PDM <https://pdm-project.org/>`__ package and dependency manager.
+
+This class adds  ``python3-pdm-backend-native`` to the recipe's build-time
+dependencies.
+
+Internally this uses the :ref:`ref-classes-python_pep517` class.
+
 .. _ref-classes-python_pep517:
 
 ``python_pep517``