diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000000000000000000000000000000000000..12f23fce00268cedd71aca7a7574c2b5057689ee
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,9 @@
+[tox]
+envlist = py{27,36,37,38,39},pypy{37,38}
+skipsdist = True
+
+[testenv]
+commands = pytest {posargs}
+deps = -r dev-requirements.txt
+
+usedevelop = True