Let's try using tox-travis

.travis.yml

@@ -2,6 +2,10 @@ sudo: false
 
 language: python
 python:
+  - 2.6
+  - 2.7
+  - 3.3
+  - 3.4
   - 3.5
 
 addons:
@@ -18,7 +22,7 @@ before_script:
   - export PREFIX=$PWD
 
 install:
-  - pip install tox
+  - pip install tox-travis
   - pip install coveralls
 
 cache:

tox.ini

@@ -9,9 +9,24 @@ exclude = ez_setup.py,.tox,build,docs,.git,__pycache__,versioneer.py,_version.py
 max-complexity = 10
 
 [tox]
-envlist = setup, py26, py27, py33, py34, py35, pypy, flake8, docs, stats
+minversion=2.3.1
+envlist =
+    setup
+    py{26,27,33,34,35,py}
+    flake8
+    pylint
+    docs
+    stats
 
-[testenv:py26]
+[tox:travis]
+2.6 = setup, py26, stats
+2.7 = setup, py27, flake8, pylint, docs, stats
+3.3 = setup, py33, pylint, stats
+3.4 = setup, py34, flake8, pylint, docs, stats
+3.5 = setup, py35, pylint, stats
+PyPy = setup, pypy, stats
+
+[testenv]
 passenv = PREFIX
 deps =
     -rrequirements.txt
@@ -20,24 +35,8 @@ deps =
     sphinx>=1.3
     sphinx_rtd_theme
     unittest2
-    # pylint is unsupported under python 2.6
-commands =
-    coverage run --append setup.py test --quiet
-
-[testenv:pypy]
-# don't run pylint under pypy until we fix the VerboseLogger noise there
-passenv = PREFIX
-deps = {[testenv:py26]deps}
-commands = {[testenv:py26]commands}
-
-[testenv]
-passenv = PREFIX
-deps =
-    {[testenv:py26]deps}
-    pylint==1.6.1
 commands =
     coverage run --append setup.py test --quiet
-    pylint COT
 
 [testenv:setup]
 commands =
@@ -60,6 +59,12 @@ deps =
      mccabe>=0.5.0
 commands = flake8 --verbose
 
+[testenv:pylint]
+deps =
+     {[testenv]deps}
+     pylint==1.6.1
+commands = pylint COT
+
 [testenv:docs]
 basepython = python
 changedir = docs