ci: launch tests on both python 2.7 & 3.6

diff --git a/.travis.yml b/.travis.yml
index a0031243d52ed6b7dedc71edf485175d5c191bfd..ef0435c0e49298b69d45759fe58fe91305c041c1 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,9 @@
 ---
 language: python
-python: "2.7"
+matrix:
+  include:
+    - python: '3.6'
+    - python: '2.7'
 
 # Use the new container infrastructure
 sudo: required