[Python-checkins] Demonstrate `py --list` in the quickstart section of the Windows doc page (GH-29383)

[miss-islington]

https://github.com/python/cpython/commit/a8f29b887e1d8212398508836bf6aaf81dc4f149
commit: a8f29b887e1d8212398508836bf6aaf81dc4f149
branch: 3.9
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: miss-islington <31488909+miss-islington at users.noreply.github.com>
date: 2022-04-04T09:02:23-07:00
summary:

Demonstrate `py --list` in the quickstart section of the Windows doc page (GH-29383)

(cherry picked from commit 1ecfe3d5ae4ddec4e73a6cfc93fed6df43fe0be5)

Co-authored-by: Christian Clauss <cclauss at me.com>

files:
M Doc/using/windows.rst

diff --git a/Doc/using/windows.rst b/Doc/using/windows.rst
index be21b55fe801f..f5f33b917a481 100644
--- a/Doc/using/windows.rst
+++ b/Doc/using/windows.rst
@@ -716,6 +716,12 @@ If you see the following error, you do not have the launcher installed:
 Per-user installations of Python do not add the launcher to :envvar:`PATH`
 unless the option was selected on installation.
 
+::
+
+  py --list
+
+You should see the currently installed versions of Python.
+
 Virtual environments
 ^^^^^^^^^^^^^^^^^^^^