My code works perfectly on Windows, but on macOS, it throws a RuntimeError. Here’s a simplified version of my code:

    import multiprocessing as mp

def worker(num):
    """worker function"""
    print(f'Worker: {num}')
        return num * num
if __name__ == '__main__':
    with mp.Pool(processes=4) as pool:
        results = pool.map(worker, range(10))
    print(results)