getting properly one subprocess output

Jean-Michel Pichavant jeanmichel at
Wed Nov 18 12:25:14 CET 2009

Hi python fellows,

I'm currently inspecting my Linux process list, trying to parse it in 
order to get one particular process (and kill it).
I ran into an annoying issue:
The stdout display is somehow truncated (maybe a terminal length issue, 
I don't know), breaking my parsing.

import subprocess
commandLine = ['ps', '-eo "%p %U %P %y %t %C %c %a"']
process = subprocess.Popen(commandLine, stdout=subprocess.PIPE, 
processList, stderrdata = process.communicate()

Here is a sample of what I get in processList.split('\n'):

 ' "25487 1122      4344 ?         7-17:48:32  2.5 firefox-bin     
 ' "25492 1122      4892 pts/6          00:08 57.2 ipython         
/usr/bin/python /usr/bin/ip"',

As you can see, to complete process command line is truncated.
Any clue on how to get the full version ?


(python 2.5)

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