Update .travis.yml

Zheyuan Chen · web-flow · commit c9343d922f6c · 2018-03-04T16:28:28.000-08:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,7 +1,7 @@
 language: python
 python:
 # - '2.7'
-- '3.3'
+# - '3.3'
 - '3.6'
 install: pip install .
 script: python setup.py pytest
