Tests(CI): Explicitly list python versions at Travis CI

diff --git a/project_template/.travis.yml b/project_template/.travis.yml
index cf04d5d9d6214bfa9ad16b10b41f2bf5d1918acd..7f90dbf340112375f325bb2361c0509782b88147 100644 (file)
--- a/project_template/.travis.yml
+++ b/project_template/.travis.yml
@@ -12,19 +12,29 @@ sudo: required
 language: python
 
 python:
-  - "3.6"
+  - "2.7"
 
 cache: pip
 
-env:
-  - TOXENV=py27
-  - TOXENV=py33
-  - TOXENV=py34
-  - TOXENV=py35
-  - TOXENV=py36
-  - TOXENV=pypy
-
 matrix:
+  include:
+  - python: "2.7"
+    env: TOXENV=py27
+  - python: "3.3"
+    env: TOXENV=py33
+  - python: "3.4"
+    env: TOXENV=py34
+  - python: "3.5"
+    env: TOXENV=py35
+  - python: "3.6"
+    env: TOXENV=py36
+  - python: "2.7"
+    env: TOXENV=py27-flake8
+  - python: "3.4"
+    env: TOXENV=py34-flake8
+  - python: "pypy"
+    env: TOXENV=pypy
+
   allow_failures:
     - env: TOXENV=pypy