Getting python process return value

python-process-return-value.py

from multiprocessing import Process, Value


def func(val):
    val.value = val.value * 2
    return True


if __name__ == '__main__':
    val = Value("l", 1, lock=False)  # "l" -> typecode_or_type , 1 -> the value.
    proc = Process(target=func, args=(val,))
    proc.start()
    proc.join()
    print(val.value)