Test in both python 2 and 3

Jerjou Cheng · Jerjou Cheng · commit 53ba00e4746b · 2015-08-31T12:25:24.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,9 @@
 sudo: false
 #add language, etc. here
 language: python
+python:
+- "2.7"
+- "3.4"
 
 cache:
   directories:
