python ssh

import traceback
def ssh_exc():
    import paramiko
    ssh = paramiko.SSHClient()
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    try:
        can_connect = True
        ssh.connect('192.168.0.11', port=22, username = 'test',password='test123456')
    except:
        can_connect = False
    else:
        stdin,stdout,stderr = ssh.exec_command("/home/auto_run_script/a.sh")
        print 'ok===='
        print stdout.read()


if __name__ == "__main__":
     ssh_exc()