From dae1041c9412e76927614dcd1e1b3bc5600692d3 Mon Sep 17 00:00:00 2001
From: Lajos Katona <lajos.katona@ericsson.com>
Date: Fri, 21 Sep 2018 10:51:47 +0200
Subject: [PATCH] doc: Add USE_PYTHON3 to configuration guide

Change-Id: I8b6743c1dbdc00001691b2727bd0c344fb6ccd51
---
 doc/source/configuration.rst | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/doc/source/configuration.rst b/doc/source/configuration.rst
index 46e50df6bb..022e6ba529 100644
--- a/doc/source/configuration.rst
+++ b/doc/source/configuration.rst
@@ -446,6 +446,16 @@ Python bindings added when they are enabled.
 
      ADDITIONAL_VENV_PACKAGES="python-foo, python-bar"
 
+Use python3
+------------
+
+By default ``stack.sh`` uses python2 (the exact version set by the
+``PYTHON2_VERSION``). This can be overriden so devstack will run
+python3 (the exact version set by ``PYTHON3_VERSION``).
+
+  ::
+
+     USE_PYTHON3=True
 
 A clean install every time
 --------------------------