ref-manual: add pypi class

Add missing documentation for the pypi class.

(From yocto-docs rev: d387ca891ad3a7d00ec3cb5f994dc5832c885d54)

Signed-off-by: Paul Eggleton <paul.eggleton@microsoft.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/documentation/ref-manual/classes.rst b/documentation/ref-manual/classes.rst
index d94db03616..f6f341e104 100644
--- a/documentation/ref-manual/classes.rst
+++ b/documentation/ref-manual/classes.rst
@@ -2005,6 +2005,21 @@ When inherited by a recipe, the ``perlnative`` class supports using the
 native version of Perl built by the build system rather than using the
 version provided by the build host.
 
+.. _ref-classes-pypi:
+
+``pypi.bbclass``
+================
+
+The ``pypi`` class sets variables appropriately for recipes that build
+Python modules from `PyPI <https://pypi.org/>`__, the Python Package Index.
+By default it determines the PyPI package name based upon :term:`BPN`
+(stripping the "python-" or "python3-" prefix off if present), however in
+some cases you may need to set it manually in the recipe by setting
+:term:`PYPI_PACKAGE`.
+
+Variables set by the ``pypi`` class include :term:`SRC_URI`, :term:`SECTION`,
+:term:`HOMEPAGE`, :term:`UPSTREAM_CHECK_URI`, and :term:`UPSTREAM_CHECK_REGEX`.
+
 .. _ref-classes-python_flit_core:
 
 ``python_flit_core.bbclass``