Add the tox.ini.

tox.ini

@@ -0,0 +1,39 @@
+[tox]
+envlist = py26, py27, py33, py34, py35, py36
+[testenv]
+deps =
+    pytest>=2.3.5
+    pytest-cache
+setenv =
+# https://github.com/tomchristie/django-rest-framework/issues/1957
+# tox corrupts __pycache__, solution from here:
+    PYTHONDONTWRITEBYTECODE=1
+commands =
+    py.test {posargs:parso test}
+[testenv:py26]
+deps =
+    unittest2
+    {[testenv]deps}
+[testenv:py27]
+deps =
+# for testing the typing module
+    typing
+    {[testenv]deps}
+[testenv:py33]
+deps =
+    typing
+    {[testenv]deps}
+[testenv:py34]
+deps =
+    typing
+    {[testenv]deps}
+[testenv:py35]
+deps =
+    {[testenv]deps}
+[testenv:cov]
+deps =
+    coverage
+    {[testenv]deps}
+commands =
+    coverage run --source parso -m py.test
+    coverage report