updated tox config

Author: wolph

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py26, py27, py34, py35, pypy, pypy3, flake8, docs
+envlist = py27, py33, py34, py35, py36, pypy, flake8, docs
 skip_missing_interpreters = True
 
 [testenv]
@@ -13,8 +13,9 @@ commands =
     nosetests --with-coverage --cover-min-percentage=100
 
 [testenv:flake8]
+basepython = python2.7
 deps = flake8
-commands = flake8 --ignore=W391 statsd
+commands = flake8 --ignore=W391 {toxinidir}/statsd {toxinidir}/tests
 
 [testenv:docs]
 deps = sphinx