[Python-checkins] [3.9] bpo-45788: Link sys.prefix doc to 'Installation paths' (GH-29606) (GH-29632)

[terryjreedy]

https://github.com/python/cpython/commit/c06c7c489a82b2db023bb947f0c4d21ad93b8308
commit: c06c7c489a82b2db023bb947f0c4d21ad93b8308
branch: 3.9
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: terryjreedy <tjreedy at udel.edu>
date: 2021-11-18T16:45:15-05:00
summary:

[3.9] bpo-45788: Link sys.prefix doc to 'Installation paths' (GH-29606) (GH-29632)

... To the Installation paths section of the sysconfig doc.
(cherry picked from commit 4575c01b750cd26377e803247c38d65dad15e26a)

Co-authored-by: Terry Jan Reedy <tjreedy at udel.edu>

files:
A Misc/NEWS.d/next/Documentation/2021-11-18-00-07-40.bpo-45788.qibUoB.rst
M Doc/library/sys.rst
M Doc/library/sysconfig.rst

diff --git a/Doc/library/sys.rst b/Doc/library/sys.rst
index 6b23b6f0ab74a..9e182826b7343 100644
--- a/Doc/library/sys.rst
+++ b/Doc/library/sys.rst
@@ -1183,13 +1183,10 @@ always available.
 .. data:: prefix
 
    A string giving the site-specific directory prefix where the platform
-   independent Python files are installed; by default, this is the string
+   independent Python files are installed; on Unix, the default is
    ``'/usr/local'``.  This can be set at build time with the ``--prefix``
-   argument to the :program:`configure` script.  The main collection of Python
-   library modules is installed in the directory :file:`{prefix}/lib/python{X.Y}`
-   while the platform independent header files (all except :file:`pyconfig.h`) are
-   stored in :file:`{prefix}/include/python{X.Y}`, where *X.Y* is the version
-   number of Python, for example ``3.2``.
+   argument to the :program:`configure` script.  See
+   :ref:`installation_paths` for derived paths.
 
    .. note:: If a :ref:`virtual environment <venv-def>` is in effect, this
       value will be changed in ``site.py`` to point to the virtual
diff --git a/Doc/library/sysconfig.rst b/Doc/library/sysconfig.rst
index ee27efd869d00..e2ee6db38dd44 100644
--- a/Doc/library/sysconfig.rst
+++ b/Doc/library/sysconfig.rst
@@ -60,6 +60,7 @@ Example of usage::
    >>> sysconfig.get_config_vars('AR', 'CXX')
    ['ar', 'g++']
 
+.. _installation_paths:
 
 Installation paths
 ------------------
@@ -72,7 +73,7 @@ Every new component that is installed using :mod:`distutils` or a
 Distutils-based system will follow the same scheme to copy its file in the right
 places.
 
-Python currently supports seven schemes:
+Python currently supports six schemes:
 
 - *posix_prefix*: scheme for POSIX platforms like Linux or macOS.  This is
   the default scheme used when Python or a component is installed.
@@ -84,6 +85,7 @@ Python currently supports seven schemes:
   located under the user home directory.
 - *nt*: scheme for NT platforms like Windows.
 - *nt_user*: scheme for NT platforms, when the *user* option is used.
+- *osx_framework_user*: scheme for macOS, when the *user* option is used.
 
 Each scheme is itself composed of a series of paths and each path has a unique
 identifier.  Python currently uses eight paths:
diff --git a/Misc/NEWS.d/next/Documentation/2021-11-18-00-07-40.bpo-45788.qibUoB.rst b/Misc/NEWS.d/next/Documentation/2021-11-18-00-07-40.bpo-45788.qibUoB.rst
new file mode 100644
index 0000000000000..8aa3293673e1f
--- /dev/null
+++ b/Misc/NEWS.d/next/Documentation/2021-11-18-00-07-40.bpo-45788.qibUoB.rst
@@ -0,0 +1 @@
+Link doc for sys.prefix to sysconfig doc on installation paths.