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  • python进程池pool的starmap的使用

    #!/usr/bin/env python3
    from functools import partial
    from itertools import repeat
    from multiprocessing import Pool, freeze_support
    
    def func(a, b):
        return a + b
    
    def main():
        a_args = [1,2,3]
        second_arg = 1
        with Pool() as pool:
            L = pool.starmap(func, [(1, 1), (2, 1), (3, 1)])
            M = pool.starmap(func, zip(a_args, repeat(second_arg)))
            N = pool.map(partial(func, b=second_arg), a_args)
            assert L == M == N
    
    if __name__=="__main__":
        freeze_support()
        main()

    原文看这里:https://stackoverflow.com/questions/5442910/python-multiprocessing-pool-map-for-multiple-arguments

      

    from functools import partial
    from itertools import repeat
    from multiprocessing import Pool, freeze_support
    
    
    def func(a, b, c):
        print(c)
        return a + b
    
    
    def main():
        a_args = [1, 2, 3]
        second_arg = 1
        with Pool() as pool:
            # L = pool.starmap(func, [(1, 1), (2, 1), (3, 1)])
            # M = pool.starmap(func, zip(a_args, repeat(second_arg)))
            N = pool.map(partial(func, b=second_arg,c="124"), a_args)
    
    
    if __name__ == "__main__":
        freeze_support()
        main()
    

      

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  • 原文地址:https://www.cnblogs.com/c-x-a/p/9049266.html
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