From a7dfaf4243ae4a75971462ad35765acfedca6a89 Mon Sep 17 00:00:00 2001
From: Brian Rosmaita <rosmaita.fossdev@gmail.com>
Date: Thu, 22 Dec 2022 18:11:07 -0500
Subject: [PATCH] [stable-only] Pin tox <4

Continue to use tox 3 in the stable branches.

Two changes:
- .zuul.yaml: set the ensure_tox_version to use <4, which will
  tell zuul to install tox<4 if it's not present
- tox.ini: set requires=tox<4 so that if tox has been installed
  already, our tox-based jobs will use tox 3 to run the tests

Change-Id: Ida6359ddebc59091f2f2dfc951950538793d0109
---
 .zuul.yaml | 2 ++
 tox.ini    | 1 +
 2 files changed, 3 insertions(+)

diff --git a/.zuul.yaml b/.zuul.yaml
index c6e340e8e..565e3923d 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -1,4 +1,6 @@
 - project:
+    vars:
+      ensure_tox_version: '<4'
     templates:
       - check-requirements
       - lib-forward-testing-python3
diff --git a/tox.ini b/tox.ini
index dc94d8bf9..a3ae02351 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,6 @@
 [tox]
 minversion = 3.18.0
+requires = tox<4
 skipsdist = True
 # python runtimes: https://governance.openstack.org/tc/reference/runtimes/ussuri.html
 envlist = py3,pep8