Enable Python 3.7 on travis

dleen · dleen · commit 4cc7e18200ec · 2019-05-10T19:59:35.000-07:00
Closes #295
diff --git a/.travis.yml b/.travis.yml
@@ -1,10 +1,12 @@
+dist: xenial   # required for Python >= 3.7
 sudo: false
 language: python
 python:
     - 2.7
     - 3.4
     - 3.5
     - 3.6
+    - 3.7
 
 env:
     - ASYNC_TEST_TIMEOUT=10
