Merge pull request #173 from palnabarun/ci-add-python-3.8

Adds Python 3.8 environment to Travis CI for running the tests

Author: k8s-ci-robot

.travis.yml

@@ -40,3 +40,7 @@ jobs:
       env: TOXENV=py37
     - python: 3.7
       env: TOXENV=py37-functional
+    - python: 3.8
+      env: TOXENV=py38
+    - python: 3.8
+      env: TOXENV=py38-functional