Question

I’m trying:

import commands print commands.getoutput('ps -u 0') 

But it doesn’t work on os x. os instead of commands gives the same output: USER PID %CPU %MEM VSZ RSS TT STAT STARTED TIME COMMAND

nothing more

Answer 1

This works on Mac OS X 10.5.5. Note the capital -U option. Perhaps that’s been your problem.

import subprocess ps = subprocess.Popen('ps -U 0', shell=True, stdout=subprocess.PIPE) print ps.stdout.read() ps.stdout.close() ps.wait() 

Here’s the Python version

Python 2.5.2 (r252:60911, Feb 22 2008, 07:57:53)  [GCC 4.0.1 (Apple Computer, Inc. build 5363)] on darwin