python Problems with using multiple processes to process files

Question

The previous problem was solved: How do I control the number of child processes used to call external commands in Python?

the new question is how can i batch luanch cmd?the sample code can normal operation,But only the last file executes enter image description here

def run(v):
    for i in os.listdir(output_lineEdit):  #use "for" list all files
        if i.split(".")[1] == "ma":  # use "if" choose ".ma" files
            mapath = i
            cmd = '"{mayaBatchPath}" -batch -file "{maPath}" -script "{melFile}" "{plugins}"'.format(
                    mayaBatchPath=MAYABATCHPATH,# mayabatch.exe path
                    melFile=melFile, #.mel files
                    maPath=output_lineEdit+"\\"+mapath, # maya source files
                    plugins="-noAutoloadPlugins",
            )
    subprocess.run(cmd, shell=True)


def main():
    with Pool(2) as pool:
        pool.map(run, range(10))


if __name__ == '__main__':
    main()

Please create a [example]. Currently, the imports are missing and the example is much more complex than it needs to be. — asynts, Sep 08 '22 at 11:02

score 0 · Accepted Answer · answered Sep 08 '22 at 10:43

0

You forgot to include subprocess.run(cmd, shell=True) in the loop. Thus cmd field only the last iteration is written and you use it

answered Sep 08 '22 at 10:43

Devid Mercer

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how can i write include subprocess.run(cmd, shell=True) in the loop – xh c Sep 08 '22 at 10:48
write 4 spaces before subprocess.run() – Devid Mercer Sep 08 '22 at 10:52
Thank you very much.I shouldn't have made such a stupid mistake – xh c Sep 08 '22 at 11:01

python Problems with using multiple processes to process files

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