Add python 3.5 for Travis ci builds (pynamodb#437)

bedge · garrettheel · commit 444312f8a15d · 2018-02-06T02:10:12.000+09:00
Ubuntu still defaults to 3.5 for python 3.x.
diff --git a/.travis.yml b/.travis.yml
@@ -2,6 +2,7 @@ language: python
 
 python:
   - "3.6"
+  - "3.5"
   - "3.4"
   - "3.3"
   - "2.7"

-Original file line number
+Diff line change
 python:
   - "3.6"
 +  - "3.5"
   - "3.4"
   - "3.3"
   - "2.7"