"""

$ python -Xfrozen_modules=off test.py
main: {'frozen_modules': 'off'}
forkserver: {}
spawn: {}
fork: {'frozen_modules': 'off'}

"""

import sys
import multiprocessing

def xoptions():
    return sys._xoptions

def main():
    print('main:', xoptions())
    for ctx in ('forkserver', 'spawn', 'fork'):
        with multiprocessing.get_context(ctx).Pool(1) as pool:
            print(f'{ctx}:', pool.apply(xoptions))

if __name__ == '__main__':
    main()