enable python 3 tests

gijzelaerr · gijzelaerr · commit bfb79e664b81 · 2018-10-02T13:14:56.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,9 @@
 language: python
 python:
 - '2.7'
+- '3.5'
+- '3.6'
+- '3.7'
 before_install:
 - sudo apt-get update -qq
 - pip install toil[all]==3.17.0
