python执行shell命令，首先需要安装依赖包

sudo pip install expect

一个远程复制的python类：

class RemoteShell:

    def __init__(self, host, user, pwd):
        self.host = host
        self.user  = user
        self.pwd  = pwd


    def put(self, local_path, remote_path):
scp_put = '''
set timeout -1
spawn scp %s %s@%s:%s
expect "(yes/no)?" {
send "yes\r"
expect "password:"
send "%s\r"
} "password:" {send "%s\r"}
expect eof
exit'''
        os.system("echo '%s' > scp_put.cmd" % (scp_put % (os.path.expanduser(local_path), self.user, self.host, remote_path, self.pwd, self.pwd)))
        os.system('expect scp_put.cmd')
        os.system('rm scp_put.cmd')

具体是通过ecpect来捕获shell输出，然后通过send发送命令，执行。可以参照原作者的例子很快的改造出简单的python执行shell命令脚本。也可以使用 pexpect  模块。

原文链接：http://blog.csdn.net/span76/article/details/11575231