From cab21d229bd361aeca1c1cb71e7bafb791f2a28f Mon Sep 17 00:00:00 2001
From: Doug Hellmann <doug.hellmann@dreamhost.com>
Date: Tue, 25 Mar 2014 12:14:04 -0700
Subject: [PATCH] Tell pip to install packages it sees globally

Use pip's option to force installation of packages so that
local copies are installed in the virtualenv, even if they
are present in the global site-packages directory. This
ensures that the latest packages are installed, and that
all of the oslo libraries from namespace packages are
installed in a consistent way, making it possible to run
unit tests on a system where devstack was run previously.

Change-Id: If5c4e12956f2c7be6530c5c9a57fdfb1da8e710c
---
 tox.ini | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tox.ini b/tox.ini
index 33431fdeae..249ad1afca 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,7 +6,7 @@ skipsdist = True
 [testenv]
 sitepackages = True
 usedevelop = True
-install_command = pip install -U {opts} {packages}
+install_command = pip install -U --force-reinstall {opts} {packages}
 setenv = VIRTUAL_ENV={envdir}
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt