It's the minimum needed to get something going, and any really sane use of it would be evalling something like import worker worker.run() The PEP expl

It's the minimum needed to get something going, and any really sane use of it would be evalling something like import worker worker.run() The PEP explicitly mentions this, and that something like subinterpreter.run(func, ...) could be considered in the future: https://peps.python.org/pep-0554/#interpreter-call https://peps.python.org/pep-0554/#interpreter-call