`Travis-CI <http://travis-ci.org/>`_ is a distributed CI server which builds tests

for open source projects for free. It provides multiple workers to run Python tests

on and seamlessly integrates with Github. You can even have it comment on your Pull

Requests whether this particular changeset breaks the build or not. So if you are

hosting your code on Github, travis-ci is a great and easy way to get started with

Continuous Integration.

In order to get started, add a ``.travis.yml`` file to your repository with this

example content::

This will get your project tested on all the listed Python versions by running the given

script and only build the master branch. There are a lot more options you can enable, like

notifications, before and after steps and much more. The

`travis-ci docs <http://about.travis-ci.org/docs/>`_ explain all of those and are very

thorough.

In order to activate testing for your project, go to `the travis-ci site <http://travis-ci.org/>`_

and login with your Github account. Then activate your project in your profile settings and that's

it. From now on, your project's tests will be run on every push to Github.