Update project setup.
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..7dccc5a
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,28 @@
+[tox]
+project = pre_commit_hooks
+# These should match the travis env list
+envlist = py26,py27,py33,pypy
+
+[testenv]
+install_command = pip install --use-wheel {opts} {packages}
+deps = -rrequirements_dev.txt
+commands =
+ coverage erase
+ coverage run -m pytest {posargs:tests}
+ coverage report --show-missing --fail-under 82
+ flake8 {[tox]project} testing tests setup.py
+ pylint {[tox]project} testing tests setup.py
+
+[testenv:venv]
+envdir = venv-{[tox]project}
+commands =
+
+[testenv:docs]
+deps =
+ {[testenv]deps}
+ sphinx
+changedir = docs
+commands = sphinx-build -b html -d build/doctrees source build/html
+
+[flake8]
+max-line-length=131
