Merge "fix tox python3 overrides"

tox.ini

@@ -25,11 +25,13 @@ whitelist_externals =
   find
 
 [testenv:unit-postgresql]
+basepython = python3
 setenv = VIRTUAL_ENV={envdir}
 passenv = ZUUL_PROJECT
 commands = ./run_tests.sh -N --db-type postgresql
 
 [testenv:unit-mysql]
+basepython = python3
 setenv = VIRTUAL_ENV={envdir}
 passenv = ZUUL_PROJECT
 commands = ./run_tests.sh -N --db-type mysql
@@ -42,6 +44,7 @@ commands =
   flake8 {posargs} . {toxinidir}/tools/get_action_list.py {toxinidir}/tools/sync_db.py
 
 [testenv:cover]
+basepython = python3
 setenv =
     PYTHON=coverage run --source $project --parallel-mode
 commands =
@@ -51,11 +54,13 @@ commands =
     coverage xml -o cover/coverage.xml
 
 [testenv:genconfig]
+basepython = python3
 commands =
     oslo-config-generator --config-file tools/config/config-generator.mistral.conf \
     --output-file etc/mistral.conf.sample
 
 [testenv:genpolicy]
+basepython = python3
 commands =
     oslopolicy-sample-generator --config-file tools/config/policy-generator.mistral.conf \
     --output-file etc/policy.yaml.sample
@@ -75,11 +80,13 @@ commands =
   sphinx-build -b html doc/source doc/build/html
 
 [testenv:releasenotes]
+basepython = python3
 commands =
   rm -rf releasenotes/build
   sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
 
 [testenv:api-ref]
+basepython = python3
 # This environment is called from CI scripts to test and publish
 # the API Ref to developer.openstack.org.
 commands =