Python: isolate a function in a separate process

example.py

from concurrent.futures import ProcessPoolExecutor

def dog():
    raise ValueError('not a dog, a cat')

def main():
    try:
        with ProcessPoolExecutor(1) as executor:
            executor.submit(dog).result()
            print('no exception')

    except ValueError:
        print('got the exception!')


if __name__ == '__main__':
    main()