test_multiprocessing.py 文件源码

def test_unpickleable_result(self):
        from multiprocessing.pool import MaybeEncodingError
        p = multiprocessing.Pool(2)

        # Make sure we don't lose pool processes because of encoding errors.
        for iteration in range(20):
            res = p.apply_async(unpickleable_result)
            self.assertRaises(MaybeEncodingError, res.get)

        p.close()
        p.join()