This repository is no longer maintained, but the code is kept for reference.
Instead of the journal approach in this repository, we created a dedicated python package called nxopentse.
With this package, you can immediately use the functions within your own journals, without the need to have the function code itself in your journal. Not only is this a much better approach for version control and traceability, but you also get the power of the comminity behind nxopentse.