Don't have tox install pre-release software
Override the tox pip install command to avoid using the "--pre" option
which is the default in tox. "--pre" means "Include pre-release and
development versions." By default, pip will only install stable
versions of software, and that is the behavior we want.
Change-Id: I3aa2a69c5bae54932137c78cc711236a0ca24602
diff --git a/tox.ini b/tox.ini
index e5698d2..9389cf4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,6 +9,7 @@
LANGUAGE=en_US:en
LC_ALL=C
usedevelop = True
+install_command = pip install -U {opts} {packages}
[testenv:py26]
commands = python setup.py test --slowest --testr-arg='tempest\.tests {posargs}'