import multiprocessing as mp


class Foo:
    def __init__(self, queue):
        self.queue = queue

    def foo(self):
        self.queue.put('hello')


if __name__ == '__main__':
    ctx = mp.get_context('spawn')
    print('start method:', ctx.get_start_method())
    q = ctx.Queue()
    p = ctx.Process(target=Foo(q).foo)
    p.start()
    print(q.get())
    p.join()