在路由器中，我使用以下命令过滤ae16 unit 200：
jd@HK-MX-RE0# run show configuration | display set | match "ae16 unit 200"
set interfaces ae16 unit 200 vlan-id 200
set interfaces ae16 unit 200 family inet address 13.57.111.246/29
set interfaces ae16 unit 200 family inet address 13.215.8.246/29
{master}[edit]
jd@HK-MX-RE0#
我想使用pexpect来打印
set interfaces ae16 unit 200 vlan-id 200
set interfaces ae16 unit 200 family inet address 13.57.111.246/29
set interfaces ae16 unit 200 family inet address 13.215.8.246/29
这是我期望的代码：
...
child = pexpect.spawn(cmd1) # create the pexpect child
...
cmd2 = 'run show configuration | display set | match "ae16 unit 200"
child.sendline(cmd1)
child.expect('#')
child.sendline(cmd2)
expect_str = """jd@HK-MX-RE0# """
child.expect(expect_str)
exec_message += (cmd2 + '\n')
exec_message += '\n'
exec_message += 'query vlan as bellow：\n'
exec_message += child.before.decode()
print(exec_message)
仅打印：
query vlan as bellow：
{master}[edit]
因此，没有得到内容。
我也尝试过：
expect_str = """\n\n{master}[edit]\njd@HK-MX-RE0# """
expect_str = """\r\n\r\n{master}[edit]\r\njd@HK-MX-RE0# """
expect_str = """\r\n{master}[edit]\r\njd@HK-MX-RE0# """
所有人都将收到超时异常：
"Timeout exceeded.\n
<pexpect.pty_spawn.spawn object at 0x11120b128>\n
command: /usr/bin/ssh\nargs: ['/usr/bin/ssh', 'root@13.193.240.45']\n
buffer (last 100 chars): b'address 13.215.8.246/29\\r\\n\\r\\n
{master}[edit]\\r\\n
jd@HK-MX-RE0# \\r\\n\\r\\n
{master}[edit]\\r\\n
jd@HK-MX-RE0# '\n
before (last 100 chars): b'address 13.215.8.246/29\\r\\n\\r\\n
{master}[edit]\\r\\n
jd@HK-MX-RE0# \\r\\n\\r\\n
{master}[edit]\\r\\n
jd@HK-MX-RE0# '\n
after: <class 'pexpect.exceptions.TIMEOUT'>\n
match: None\n
match_index: None\n
exitstatus: None\n
flag_eof: False\n
pid: 8560\nchild_fd: 13\n
closed: False\ntimeout: 30\n
delimiter: <class 'pexpect.exceptions.EOF'>\n
logfile: None\n
logfile_read: None\n
logfile_send: None\n
maxread: 2000\n
ignorecase: False\n
searchwindowsize: None\n
delaybeforesend: 0.05\n
delayafterclose: 0.1\n
delayafterterminate: 0.1\n
searcher: searcher_re:\n
0: re.compile(b'\\n
{master}[edit]\\n
jd@HK-MX-RE0#')"