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How to contribute 🏗️

What contributions?

  • Documentation contributions are very valuable to us!
  • Examples. Show us what you did with Outlines :)
  • Bug reports with a minimum working examples in the issue tracker
  • Bug fixes are always a pleasure to review.
  • New features. Please start a new discussion, or come chat with us beforehand!

Note that the issue tracker is only intended for actionable items. In doubt, open a discussion or come talk to us.

How to contribute?


First, fork the repository on GitHub and clone the fork locally:

git clone
cd outlines

Create a new virtual environment. If you are using conda:

conda env create -f environment.yml

If you are using venv:

python -m venv .venv
source .venv/bin/activate

Then install the dependencies in editable mode, and install the pre-commit hooks:

pip install -e .[test]
pre-commit install

Before pushing your code

Run the tests:


And run the code style checks:

pre-commit run --all-files

When modifying the code related to the index compilation, we kindly ask you to post benchmarks before and after your changes. You can run benchmarks using:

pytest --benchmark-only

Contribute to the documentation

To work on the documentation you will need to install the related dependencies:

pip install -r requirements-doc.txt

To build the documentation and serve it locally, run the following command in the repository's root folder:

mkdocs serve

By following the instruction you will be able to view the documentation locally. It will be updated every time you make a change.

Open a Pull Request

Create a new branch on your fork, commit and push the changes:

git checkout -b new-branch
git add .
git commit -m "Changes I made"
git push origin new-branch

Then you can open a pull request on GitHub. It should prompt you to do so. Every subsequent change that you make on your branch will update the pull request.

Do not hesitate to open a draft PR before your contribution is ready, especially if you have questions and/or need feedback. If you need help, come tell us on Discord.