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

[Sandy4321]

error for your code from demo for windows 11 and python Python 3.10.11 import girth.synthetic as gsyn import girth.factoranalysis as gfa import girth.common as gcm import numpy as np

discrimination = np.random.uniform(-2, 2, (20, 2)) thetas = np.random.randn(2, 1000) difficulty = np.linspace(-1.5, 1, 20)

syn_data = gsyn.create_synthetic_irt_dichotomous(difficulty, discrimination, thetas)

polychoric_corr = gcm.polychoric_correlation(syn_data, start_val=0, stop_val=1)

results_fa = gfa.maximum_likelihood_factor_analysis(polychoric_corr, 2)

Python310\lib\multiprocessing\spawn.py", line 134, in _check_not_importing_main raise RuntimeError(''' 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.

[Sandy4321]

seems to be this works import girth.synthetic as gsyn import girth.factoranalysis as gfa import girth.common as gcm import numpy as np

if name == 'main':

discrimination = np.random.uniform(-2, 2, (20, 2))
thetas = np.random.randn(2, 1000)
difficulty = np.linspace(-1.5, 1, 20)

syn_data = gsyn.create_synthetic_irt_dichotomous(difficulty, discrimination, thetas)

polychoric_corr = gcm.polychoric_correlation(syn_data, start_val=0, stop_val=1)

results_fa = gfa.maximum_likelihood_factor_analysis(polychoric_corr, 2)
q = 0