Someone

import subprocess

def openPipe(command, verbose=False):
  result = []
  process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  while True:
    line = process.stdout.readline()
    if not line:
      break
    if verbose:
      print line
    result.append(line[:-1])
  return result

print openPipe(["ps", "-A"])