带有布尔值和多个参数的python多处理 [英] python multiprocessing with boolean and multiple arguments

问题描述

我有一个接受多个参数的函数，其中一些是布尔值.我正在尝试将其传递给多处理 pool.apply_async 并希望传递一些附加名称的参数.

I have a function that takes multiple arguments, some of which are boolean. I'm trying to pass this to the multiprocessing pool.apply_async and want to pass some args with the names attached.

这是我正在使用的示例脚本:

Here's an example script that I'm working with:

from multiprocessing import Pool

    def testFunc(y, x, calcY=True):
        if calcY == True:
            return y*y
        elif calcY == False:
            return x*x

    if __name__ == "__main__":
        p = Pool()
        res = p.apply_async(testFunc, args = (2, 4, False))
        print res.get()

这有效，但我很好奇将 res = p.apply_async(testFunc, args = (2, 4, False)) 更改为类似:

This works, but I'm curious about changing the res = p.apply_async(testFunc, args = (2, 4, False)) to something like:

res = p.apply_async(testFunc, args = (2, 4, calcY = False))

推荐答案

apply_async 有 args 和 kwds 关键字参数，你可以这样使用:

apply_async has args and kwds keyword arguments which you could use like this:

res = p.apply_async(testFunc, args=(2, 4), kwds={'calcY': False})

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