1 files changed, 15 insertions, 6 deletions
diff --git a/Doc/extending/index.rst b/Doc/extending/index.rst
index 75cf4c5d31..44a7f92c00 100644
--- a/Doc/extending/index.rst
+++ b/Doc/extending/index.rst
@@ -5,12 +5,12 @@
 ##################################################
 
 This document describes how to write modules in C or C++ to extend the Python
-interpreter with new modules.  Those modules can define new functions but also
-new object types and their methods.  The document also describes how to embed
-the Python interpreter in another application, for use as an extension language.
-Finally, it shows how to compile and link extension modules so that they can be
-loaded dynamically (at run time) into the interpreter, if the underlying
-operating system supports this feature.
+interpreter with new modules.  Those modules can not only define new functions
+but also new object types and their methods.  The document also describes how
+to embed the Python interpreter in another application, for use as an extension
+language.  Finally, it shows how to compile and link extension modules so that
+they can be loaded dynamically (at run time) into the interpreter, if the
+underlying operating system supports this feature.
 
 This document assumes basic knowledge about Python.  For an informal
 introduction to the language, see :ref:`tutorial-index`.  :ref:`reference-index`
@@ -21,6 +21,15 @@ Python) that give the language its wide application range.
 For a detailed description of the whole Python/C API, see the separate
 :ref:`c-api-index`.
 
+.. note::
+
+   This guide only covers the basic tools for creating extensions provided
+   as part of this version of CPython. Third party tools may offer simpler
+   alternatives. Refer to the `binary extensions section
+   <https://python-packaging-user-guide.readthedocs.org/en/latest/extensions.html>`__
+   in the Python Packaging User Guide for more information.
+
+
 .. toctree::
    :maxdepth: 2
    :numbered: