test python 3.7

Author: hsiaoyi0504

.travis.yml

@@ -52,18 +52,24 @@ matrix:
       python: "3.5"
     - env: TOXENV=py36-django20
       python: "3.6"
+    - env: TOXENV=py37-django20
+      python: "3.7-dev"
     - env: TOXENV=py35-django-master
       python: "3.5"
     - env: TOXENV=py36-django-master
       python: "3.6"
+    - env: TOXENV=py37-django-master
+      python: "3.7-dev"
     - env: TOXENV=docs
       python: "2.7"
   allow_failures:
     - env: TOXENV=py34-django20
     - env: TOXENV=py35-django20
     - env: TOXENV=py36-django20
+    - env: TOXENV=py37-django20
     - env: TOXENV=py35-django-master
     - env: TOXENV=py36-django-master
+    - env: TOXENV=py37-django-master
 before_install:
   - nvm install node
   - nvm use node

tox.ini

@@ -12,6 +12,7 @@ basepython =
   py34: python3.4
   py35: python3.5
   py36: python3.6
+  py37: python3.7
 deps =
   py{27,py}: mock
   py{27,py}: futures