= PyRunner
PyRunner is a  tool to run Python code from Java.
The PyRunner takes a ready-to-use python tar.gz file that was generated using the setuptool in python. This file contains all dependencies. The PyRunner then creates a virtual environment, and installs your tar.gz file and all dependencies in the virtual environment.

=== Preparing Python
This is a tool to run python code from Java.
The tool requires FULL python to be installed, including pip and venv.

Some python installations require manual post-installation of these. To do this you need something like
{{{
sudo apt-get update
sudo apt install python3-pip
sudo apt install python3.<VERSION>-venv
}}}

where <VERSION> is 8,9 etc depending on your python version.

To check whether your python is ready for use, run this command
{{{
python -m venv venv
}}}

If you get any errors, check the error and do further installations. Unfortunately this seems the python way of getting a working installation.

=== Usage
The PythonVenv usage is roughly like this:
* create a PythonVenv  E, possibly already with the targz code you want to run
 * Pass your targz directly into the PythonVenv constructor
 * or if you dont have a targz, copy the code into E.
* E.call the code you want to run
* call E.remove to remove the venv