= PyRunner

This is a tool to run python code from Java.

The procedure is roughly:
* 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