How to import modules in jython scripts using helper libraries?

[5iver (Scott Rushworth)]

@frankb

OK. I found the solution myself.

This is documented right above the section that I linked to earlier… Reference — openHAB Helper Libraries documentation

It would probably help if you would read through all of the helper library documentation.

@frankb

For example in my current DSL rules I defined multiple constants, that I use across the rule files.

You had said constants, which do not change and work great when stored in modules. If you want to share a variable across scripts, you could use a ScriptExtension…

Best practice for "global object registry" in Jython?

I mainly use dicts in modules for storing/sharing data between scripts and rules, although sometimes it makes sense to add them as attributes of a function, module, etc. If the data needs to be persisted, then I use metadata. A third option which is not very well known is to use ScriptExtensions. These are a powerful tool that we have in scripted automation and will play a large part in the new Scripting API. Basically, you can create your own ScriptExtension presets, which can store objects tha…

You could also create a class with a getter and setter to store/return the data. None of these will persist the data between OH restarts though, so if you want it to be around after a restart, Item metadata may be the best place for it. Although, there are other ways to add things to persistent storage and this is functionality that I plan to add to the core libraries.