[python] get string from output of other process

1. The Script

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#!/usr/bin/python

import subprocess

def getCallResult(cmdARGS):

fd_popen = subprocess.Popen(cmdARGS.split(), stdout=subprocess.PIPE).stdout

data = fd_popen.read().strip()

fd_popen.close()

return data

data = getCallResult("ls -la")

print (data)

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2. Result Example

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# python test.py

total 524

drwxrwxr-x 4 parkmo parkmo 4096 1월 27 16:30 .

drwxrwxr-x 45 parkmo parkmo 4096 1월 27 11:59 ..

drw-rw-r-- 1 parkmo parkmo 421 1월 27 12:01 test.py

1) If you don't want use split() when call subprocess.Popen, use [ ].

subprocess.Popen(["ls", "-la"], stdout=subprocess.PIPE).stdout

2) If you can want to file descriptor.

fd_popen = subprocess.Popen(cmdARGS.split(), stdout=subprocess.PIPE).wait()

You can use Blocking or Non-Blocking.

Test Environment: Python 2.4.x

Caution: On Python 3.x, when you want to use print function, you can not use print. You must write "print(....)"

parkmo