从Python运行子进程

Question

I want to run a cmd exe using a python script.

I have the following code:

def run_command(command):
    p = subprocess.Popen(command, shell=True,
            stdout=subprocess.PIPE,
            stderr=subprocess.STDOUT)
    return p.communicate()

then i use: run_command(r"C:\\Users\\user\\Desktop\\application\\uploader.exe") this returns the option menu where i need to specify additional parameter for the cmd exe to run. So i pass additional parameters for the cmd exe to run. How do i accomplish this. I've looked at subprocess.communicate but i was unable to understand it

Answer 1

If uploader.exe accepts command line options, then you could try subprocess.call in the following manner:

If your command is uploader.exe , the directory of uploader is C:\\Users\\...\\application , and the additional parameter is x , you could try

import subprocess
def run_command(command, directory, arg):
    return subprocess.call(["command %s"%arg], cwd=directory, shell=True)

run_command("uploader.exe", "C:\\Users\\..\\application", "x")

However, this assumes you do not need to actually interact with indexer.exe after you Popen to it.