The Travis build is configured to release shub to PyPI whenever a new tag is committed.

The steps to do a release are:

1. Install bumpversion

2. Make sure you're in the tip of master, and then run:

   bumpversion VERSION_PART

In place of VERSION_PART, use one of patch, minor or major, meaning the part of the version number to be updated.

This will create a new commit and tag updating the version number.

3. Push the changes and the new tag to trigger the release:

   git push && git push --tags

4. Once the build finishes, run pip install shub in a temporary virtualenv and make sure it's installing the latest version.

5. Update the release information in:

https://github.com/scrapinghub/shub/releases