python实现程序重启和系统重启方式

def restart_program():
  """Restarts the current program.
  Note: this function does not return. Any cleanup action (like
  saving data) must be done before calling this function."""
  python = sys.executable
  os.execl(python, python, * sys.argv)

#!/usr/bin/python
#coding=utf-8
import time
from os import system
runing = True
while runing:
 input = raw_input('关机(s)OR重启(r)?(q退出)')
 input = input.lower()
 if input == 'q' or input =='quit':
  runing = False
  print '程序退出'
  break
 seconds = int(raw_input('请输入暂停时间(单位:秒):'))
 time.sleep(seconds)
 print '暂停时间:', seconds
 runing = False
 
 if input == 's':
  print '关机ing'
  system('halt')
 elif input == 'r':
  print '重启ing'
  system('reboot')
 else:
  print '程序错误重新输入'
  runing = True
print '程序结束~~~!'

def restart_program():
  """Restarts the current program.
  Note: this function does not return. Any cleanup action (like
  saving data) must be done before calling this function."""
  print('ready to restart program......')
  python = sys.executable
  os.execl(python, python, *sys.argv)