The error you received was due to the configuration.py module not being importable. Either it did not exist, it was not renamed from configuration.py.example, or OH was running when it was copied or renamed and needed to be restarted… or configuration.py reloaded.
Just use the instructions in the helper library documentation, which will be updated soon to use the beta Jython bundle. If you find a problem or have questions, please submit an issue.
This is the third topic you have posted incorrect steps for installing Jython and this will cause confusion.