There are Jython and helper library add-ons waiting to be merged, which will make installation as easy as any other add-on. Until then, use this…
The helper library documentation will be updated for using the add-ons, but they will have the steps for a manual installation too. The information in this topic is incorrect, incomplete, and outdated. Use this… Helper Libraries for openHAB Scripted Automation — openHAB Helper Libraries documentation. If there is something that you would like more detail on, open an issue in Github or submit a PR.
