I am trying to port an OptaPy Problem to Timefold/Python.

Now I am stuck with an error message which does not seem related to the referenced LOC, but maybe to something within the JVM. I seem unable to turn on DEBUG logging for “timefold.solver”, so far.

Any pointers on how to diagnose this?

Traceback (most recent call last):
  File "/home/***/git/optapy-pplan/optapy-test/src/main2.py", line 426, in <module>
    solution = solver.solve(generate_problem(sservice.context._inputfile))
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/***/.virtualenvs/timefold/lib/python3.11/site-packages/timefold/solver/_solver.py", line 109, in solve
    java_solution = self._delegate.solve(java_problem)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: expected string or bytes-like object, got 'ai.timefold.jpyinterpreter.types.PythonString'