We welcome you to contribute code and documentation to Pastas! This section describes how you can contribute to Pastas and how the process works of finally implementing your code into the stable version of the software. GitHub, where Pastas is hosted, also has good tutorials to learn how to commit code changes to GitHub open source projects. Let’s start!

1. Create a GitHub Issue#

Before you start you can start a GitHub Issue describing the changes you propose to make and why these are necessary. This is an easy way to inform the Pastas community in an early stage of any issues that needs to be solved and allows others to help you work out a solution.

2. Fork Pastas#

To start making changes to the original code, you need to make a local copy of the Pastas, called “Forking” in git-language. You can read how to fork a GitHub repository here.


Make sure to make changes in the make changes in your local Development branch (Dev) or start an entirely new branch that branches of the Dev-branch.

3. Write Code#

After you forked Pastas, you can start making changes to the code or add new features to it. To ensure high quality code that is easy to read and maintain we follow the Black code formatting standard. Check out the Pastas Code Style section to learn more about the formatting of code and docstrings.

4. Test Code#

The ensure a proper functioning of the Pastas, it is important to supply tests in the test-suite (see here). The ensure a proper functioning of the Pastas, the software is automatically tested using Github Actions when changes are made. Pastas uses pytest to run tests.

5. Document Code#

When submitting a new function, method or class, docstrings are required before the new code will be pulled into the dev branch. Documentation is created using Sphinxdoc. Docstrings within the method or class need to be written in NumPy docformat to enable automatic documentation on this website. In the case of a new module, the module needs to be added to index.rst in the api-folder.

A Jupyter Notebook explaining the use of your new code can be added the to examples folder. This Notebook will also be automatically converted and placed on the Examples page on this website.

6. Create a pull request#

Once you have written, tested, and documented your code you can start a pull request on the development branch (dev) of Pastas. Pull requests can only be submitted to the dev-branch and need to be reviewed by one of the core developers. When you start your Pull Request, you will automatically see a checklist to go through to check if your PR is up to standards. Pastas will run automatic code tests to ensure that the code works, is documented and has a good code style.

7. Share and enjoy your work!#

After you have create a Pull Request the Core Development Team will review your code and discuss potential improvements on GitHub before merging your code into the development branch. After a successful Pull Request your code will be included in the next release of Pastas when the master-branch is updated. Congratulations, you are now officially a contributor to the Pastas project!