Add py36 and py37 tox envs

With python3.6 and python3.7 jobs added to the Zuul jobs, it makes sense
to add this to the tox config too so that developers can run those
tests as well.

Change-Id: Iccc84a4336302b49a2d5e9a82518c06914f4794a

1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index 7b24a9c..facb7ce 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 minversion = 2.0
-envlist = py35,py27,pep8,docs
+envlist = py37,py36,py35,py27,pep8,docs
 
 [testenv]
 install_command = pip install {opts} {packages}