diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..224beee
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,5 @@
+[tox]
+envlist = py27,py34,py35,py36
+[testenv]
+deps=pytest
+commands = {posargs:pytest}