fix travis python3 version

pipermerriam · pipermerriam · commit b9526a842530 · 2016-06-14T16:57:07.000-06:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,5 @@
 language: python
-python: 2.7
+python: 3.5
 sudo: required
 dist: trusty
 before_install:
