In order to work properlt, SonataFlow python addon requires Python interpreter to be in the path and that JEP library is complied and installed by running pip install jep.
I can foresee following alternatives:

1. Install Python and Jep in our base image that customer is currently using to generate his own
2. Install Python and Jep into an alternative base image that customer will use to generate his own if want to use python
3. Document (in product) that the customer has to install Python and Jep in their image if they want to use it

Considering that popular libraries like numpy, in order to properly work with JEP, have to be installed by PIP before compiling JEP, probably the best option is number 3.