Replacing os.popen() : subprocess « Buildin Module « Python Tutorial

1. Python Tutorial
2. Buildin Module
3. subprocess

from subprocess import Popen, PIPE
f = Popen(('uname', '-a'), stdout=PIPE).stdout
data = f.readline()
f.close()
print data,
        
f = Popen('who', stdout=PIPE).stdout
data = [ eachLine.strip() for eachLine in f ]
f.close()
for eachLine in data:
   print eachLine