Python module to connect with OpenRocket and do some headless magic

Prerequisites: Java JDK 1.8 works in my case, but OpenRocket recommends 1.7.
Python 3.6+ and Pipenv for dependency management.

Steps

Get OpenRocket jar file or set variable CLASSPATH which points to your OpenRocket jar

wget https://github.com/openrocket/openrocket/releases/download/release-15.03/OpenRocket-15.03.jar

Setup .env file to include JAVA_HOME

JDK_HOME=/usr/lib/jvm/java-8-openjdk-amd64
JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
# default
CLASSPATH=OpenRocket-15.03.jar

Get inside venv

pipenv install --skip-lock
pipenv shell

Run orhelper.py inside venv, no errors should pop-up

python orhelper.py

Troubleshooting You need to compile dependencies like pyjnius with correct envs. Try inside venv running bare pip.

pip install pyjnius --force-reinstall --no-cache-dir

here is related issue that pops when wrongly built kivy/pyjnius#428

Thats all what I found and fixed regarding this project.
http://wiki.openrocket.info/Scripting_with_Python_and_JPype proved to be outdated.
There is main issue regarding this topic which was active while researching this openrocket/openrocket#532.