如何在Python的子过程输出中搜索特定的单词? [英] How do you search subprocess output in Python for a specific word?

问题描述

我正在尝试搜索变量的输出以找到特定的单词，然后让该单词触发响应(如果为True).

I'm trying to search through a variable's output to find a specific word, then have that trigger a response if True.

variable = subprocess.call(["some", "command", "here"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)

for word in variable:
    if word == "myword":
        print "something something"

我确定我在这里错过了一些大事，但我只是不知道这是什么.

I'm sure I'm missing something big here, but I just can't figure out what it is.

预先感谢您让我直率.

Thanks in advance for setting me straight.

推荐答案

您需要检查流程的标准输出，可以执行以下操作:

You need to check the stdout of the process, you can do something like that:

mainProcess = subprocess.Popen(['python', file, param], stdout=subprocess.PIPE, stderr=subprocess.PIPE)  
communicateRes = mainProcess.communicate() 
stdOutValue, stdErrValue = communicateRes

# you can split by any value, here is by space
my_output_list = stdOutValue.split(" ")

# after the split we have a list of string in my_output_list 
for word in my_output_list :
    if word == "myword":
        print "something something"

这是用于stdout的，您也可以检查stderr，这也是有关 split

This is for stdout, you can check the stderr also, Also here is some info about split

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