python之如何通过行而不是变量中的字符进行 for-loop 循环

我有以下代码可以通过 ssh 连接到一个节点并找到来自其他设备的 RSSI。

bot_ipv6 是 ssh 到的 ipv6 地址列表，脚本使用 pexpect 到 ssh。

for address in bot_ipv6: 
    session=spawn('ssh -6 root@'+address+'%wlan0') 
    #session.logfile = stdout 
    session.expect('password:') 
    session.sendline("123456") 
    session.expect(prompt) 
    session.sendline("iwlist wlan0 scan") 
    session.expect(prompt) 
    data=session.before 
    session.close() 

data 现在包含该设备上 iwlist wlan0 scan 的输出。

我想遍历数据并只获取地址及其相应的 RSSI。当命令可以在本地运行并输出到文件时，此代码有效:

with open("rssi.txt") as fd: 
    for line in fd: 
        cell_line = match(line,"Cell ") 
        if cell_line != None: 
            cells.append([]) 
            line = cell_line[-27:] 
        cells[-1].append(line.rstrip()) 
 
 
for cell in cells: 
    level.append(matching_line(cell,"Quality=").split()[2].split('=')[1]) 
    address.append(matching_line(cell,"Address: ")) 
 
scanned=dict(zip(address, level)) 

其中 match 和 matching line 是在其他地方定义的函数，它们在文件中查找与要查找的内容匹配的字符。

我的问题是我不知道如何将数据输出到文件，但是如果我尝试像使用文件时那样遍历输出数据中的行:

for line in data: 
        cell_line = match(line,"Cell ") 
        if cell_line != None: 
            cells.append([]) 
            line = cell_line[-27:] 
        cells[-1].append(line.rstrip()) 

它不是行，而是遍历每个字符。

如何将输出打印到我可以在本地打开并像以前一样扫描的文件，或者循环遍历数据行而不是单个字符？

这里是数据的示例(为了获取它，我将打印数据放入脚本中，然后从输出中复制它并粘贴到此处，希望没有格式丢失):

iwlist wlan0 scan 
wlan0     Scan completed : 
          Cell 01 - Address: 02:CA:FF:EE:BA:BE 
                    Channel:11 
                    Frequency:2.462 GHz (Channel 11) 
                    Quality=47/70  Signal level=-63 dBm   
                    Encryption key:off 
                    ESSID:"nenenenenene-batman" 
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s 
                              9 Mb/s; 12 Mb/s; 18 Mb/s 
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s 
                    Mode:Ad-Hoc 
                    Extra:tsf=00000000f8083cfe 
                    Extra: Last beacon: 72ms ago 
                    IE: Unknown: 00136E656E656E656E656E656E652D6261746D616E 
                    IE: Unknown: 010882840B160C121824 
                    IE: Unknown: 03010B 
                    IE: Unknown: 06020000 
                    IE: Unknown: 32043048606C 
          Cell 02 - Address: D8:5D:4C:AF:C3:14 
                    Channel:11 
                    Frequency:2.462 GHz (Channel 11) 
                    Quality=21/70  Signal level=-89 dBm   
                    Encryption key:on 
                    ESSID:"phome" 
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s 
                              24 Mb/s; 36 Mb/s; 54 Mb/s 
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s 
                    Mode:Master 
                    Extra:tsf=000000ff16ee018d 
                    Extra: Last beacon: 3824ms ago 
                    IE: Unknown: 000570686F6D65 
                    IE: Unknown: 010882848B962430486C 
                    IE: Unknown: 03010B 
                    IE: Unknown: 2A0104 
                    IE: Unknown: 2F0104 
                    IE: Unknown: 32040C121860 
                    IE: Unknown: 2D1A7C181BFFFF000000000000000000000000000000000000000000 
                    IE: Unknown: 3D160B001700000000000000000000000000000000000000 
                    IE: Unknown: DD090010180203F4010000 
                    IE: Unknown: DD1E00904C337C181BFFFF000000000000000000000000000000000000000000 
                    IE: Unknown: DD1A00904C340B001700000000000000000000000000000000000000 

请您参考如下方法:

使用str.splitlines将字符串拆分成行:

for line in data.splitlines(): 
    # Do things.