python脚本修改mysql密码

import os
import pexpect

def change_mysql_password():
print 'set mysql password ...'

os.system('service mysql restart')

try:
mysql = pexpect.spawn('mysqladmin -u root -p password', timeout=3)
mysql.expect("Enter password:")
mysql.sendline('') # 旧密码
mysql.expect("New password:")
mysql.sendline('') # 新密码
mysql.expect("Confirm new password: ")
mysql.sendline('') # 新密码
mysql.sendcontrol('d')
except Exception, e:
print e

print 'done ...'