def stream_command(command):
  executable_command = str(command)
  print '=>$ %s' % executable_command

  import subprocess
  import sys
  try:
    process = subprocess.Popen(executable_command, stderr=subprocess.PIPE, stdout=subprocess.PIPE)
    comms = process.communicate()
    stdout = comms[0]
    stderr = comms[1]
    print stdout
    if process.returncode != 0:
      print '[Error %s] %s' % (process.returncode, (stderr or 'See above output'))
      stop_the_world(process.returncode)

  except (OSError, ValueError) as e:
    print >>sys.stderr, e
    if hasattr(e, 'errno'):
      stop_the_world(e.errno)
    stop_the_world()

def stop_the_world(exit_status=1):
  import sys
  sys.exit(exit_status)

# stream_command('git status')