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: Ib90566414f0967b2c7c7633950e3dc2fa8634982
Signed-off-by: Doug Hellmann <doug@doughellmann.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/tox.ini b/tox.ini
index dfaccb8..0d38b96 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,6 +3,7 @@ minversion = 1.8
 envlist = py27,py35,py{27,35}-{zookeeper,redis,sentinel,memcached,postgresql,mysql,consul,etcd,etcd3,etcd3gw},pep8
 
 [testenv]
+basepython = python3
 # We need to install a bit more than just `test' because those drivers have
 # custom tests that we always run
 deps = .[test,zake,ipc,memcached,mysql,etcd,etcd3,etcd3gw]
@@ -35,6 +36,9 @@ commands =
     {toxinidir}/run-tests.sh {toxinidir}/tools/pretty_tox.sh "{posargs}"
     {toxinidir}/run-examples.sh
 
+[testenv:py27]
+basepython = python2.7
+
 [testenv:venv]
 # This target is used by the gate go run Sphinx to build the doc
 deps = {[testenv:docs]deps}