diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..58d4f8a
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,24 @@
+[tox]
+envlist = py26,py27,py32,py33,py34,pypy,{py27,py34}-flake8
+
+[testenv]
+pip_pre = False
+deps =
+    -rdev-requirements.txt
+commands = py.test {posargs}
+
+[testenv:py27-flake8]
+basepython = python2.7
+deps =
+    flake8
+commands = flake8 {posargs} github3/
+
+[testenv:py34-flake8]
+basepython = python3.4
+deps =
+    flake8
+commands = flake8 {posargs} github3/
+
+[pytest]
+addopts = -q
+norecursedirs = *.egg .git .* _*