Travis CI: test on Python 3.7

hroncok · amol- · commit d35cf7e2aac1 · 2018-05-18T00:22:25.000+03:00
diff --git a/.travis.yml b/.travis.yml
@@ -13,6 +13,7 @@ python:
   - "3.4"
   - "3.5"
   - "3.6"
+  - "3.7-dev"
 install:
     - pip install -e .[testsuite]
 script:
