set default python to python3

Set the default python to python3 except for the py27 environment. We
have to set that explicitly to override the new default.

Change-Id: I9d9b80a6e177f7a3a1e20be8da5f603b95ad2deb
Signed-off-by: Doug Hellmann <doug@doughellmann.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/tox.ini b/tox.ini
index ae632a1..a8c9c38 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,12 +3,16 @@ minversion = 2.0
 envlist = pep8
 
 [testenv]
+basepython = python3
 install_command = pip install {opts} {packages}
 deps =
   -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
   -r{toxinidir}/test-requirements.txt
   -r{toxinidir}/requirements.txt
 
+[testenv:py27]
+basepython = python2.7
+
 [testenv:pep8]
 commands =
     flake8 oslosphinx