Issues with threading/multiprocessing in examples (M2 Mac)

[PipGrylls]

The following scripts throw `RuntimeError: An attempt has been made to start a new process before the current process has finished its bootstrapping phase.

    This probably means that you are not using fork to start your
    child processes and you have forgotten to use the proper idiom
    in the main module:

        if __name__ == '__main__':
            freeze_support()
            ...

    The "freeze_support()" line can be omitted if the program
    is not going to be frozen to produce an executable.`

• examples/scripts/mle.py
• examples/scripts/scipy_minimise.py
• examples/scripts/scipy_differential_evolution.py

[PipGrylls]

Still a problem as of 10/11/23

[brosaplanella]

I thought it might be related to the ScipyDifferentialEvolution using multiple cores, but in theory scipy_minimise is not using them...

[PipGrylls]

while the examples run on 3.12 in the runner using ubuntu they still cause issues on an M2 mac #87 but the error is slightly different