Telnet.read.until函数不起作用
Telnet.read.until函数不起作用
提问于 2013-12-10 10:36:25
尝试telnet到Brocade路由器时，python脚本发出错误...不确定这里出了什么问题。我已经尝试了调试，但不能使其工作。我相信这是当务之急。如果任何人有如何让它工作的建议，我将不胜感激。
注意:这是Python 3.0
import getpass
import sys
import telnetlib
HOST = "1.1.1.1"
user = "admin"
password = "password"
port = "23"
telnet = telnetlib.Telnet(HOST)
telnet.read_until("sw0 login:,3")
telnet.write(admin + "\r")
if password:
telnet.read_until("Password: ")
telnet.write(password + "\n")
tn.write("term len 0" + "\n")
telnet.write("sh ver br\n")
telnet.write("exit\n")
ERROR:
Traceback (most recent call last):
File "C:\Users\milan\Desktop\telnetNew.py", line 13, in <module>
telnet.read_until("Username :,3")
File "C:\Python33\lib\telnetlib.py", line 299, in read_until
return self._read_until_with_select(match, timeout)
File "C:\Python33\lib\telnetlib.py", line 352, in _read_until_with_select
i = self.cookedq.find(match)
TypeError: Type str doesn't support the buffer API
This is my prompt after logging manually using telnet port 23 and this is what i expected command to work.
_________________________________________________________________________________
Network OS (sw0)
xxxxxxxxxx
sw0 login: xxxxx
Password: xxxxx
WARNING: The default password of 'admin' and 'user' accounts have not been changed.
Welcome to the Brocade Network Operating System Software
admin connected from 10.100.131.18 using console on sw0
sw0# sh ver
sw0#回答 4
Stack Overflow用户
发布于 2013-12-10 11:37:45
在查看文档时，telnetlib似乎需要一个bytestr，而不是Str。所以试试这个.，它应该把所有东西都转换成字节，而不是字符串
import sys
import telnetlib
HOST = "1.1.1.1"
user = "admin"
password = "password"
port = "23"
telnet = telnetlib.Telnet(HOST,port)
telnet.read_until(b"login: ")
telnet.write(admin.encode('ascii') + b"\n")
telnet.read_until(b"Password: ")
telnet.write(password.encode('ascii') + b"\n")
tn.write(b"term len 0\n")
telnet.write(b"sh ver br\n")
telnet.write(b"exit\n")--edit--我安装了python，并在我的一个路由器上进行了尝试。将用户名/密码更改为我的凭据，我可以正常登录。(我删除了密码检查和getpass，因为它们不被使用，因为您的代码对它们进行了硬编码)。看起来您复制了2.x版的示例，但是3.x版需要缓冲区兼容的示例，而不是b“I Get this
Traceback (most recent call last):
File "foo.py", line 5, in <module>
telnet.read_until("login: ")
File "/usr/local/Cellar/python32/3.2.5/Frameworks/Python.framework/Versions/3.2/lib/python3.2/telnetlib.py", line 293, in read_until
return self._read_until_with_poll(match, timeout)
File "/usr/local/Cellar/python32/3.2.5/Frameworks/Python.framework/Versions/3.2/lib/python3.2/telnetlib.py", line 308, in _read_until_with_poll
i = self.cookedq.find(match)
TypeError: expected an object with the buffer interface带着b“I get
[~] /usr/local/bin/python3.2 foo.py
b'\r\n\r\nThis computer system including all related equipment, network devices\r\n(specifically including Internet access), are provided only for\r\nauthorized use. All computer这表明它正在工作..你现在得到了什么错误？
Stack Overflow用户
发布于 2014-05-30 15:58:22
import telnetlib , socket
class TELNET(object):
def __init__(self):
self.tn = None
self.username = "root"
self.password = "12345678"
self.host = "10.1.1.1"
self.port = 23
self.timeout = 5
self.login_prompt = b"login: "
self.password_prompt = b"Password: "
def connect(self):
try :
self.tn = telnetlib.Telnet(self.host,self.port,self.timeout)
except socket.timeout :
print("TELNET.connect() socket.timeout")
self.tn.read_until(self.login_prompt, self.timeout)
self.tn.write(self.username.encode('ascii') + b"\n")
if self.password :
self.tn.read_until(self.password_prompt,self.timeout)
self.tn.write(self.password.encode('ascii') + b"\n")
def write(self,msg):
self.tn.write(msg.encode('ascii') + b"\n")
return True
def read_until(self,value):
return self.tn.read_until(value)
def read_all(self):
try :
return self.tn.read_all().decode('ascii')
except socket.timeout :
print("read_all socket.timeout")
return False
def close(self):
self.tn.close()
return True
def request(self,msg):
self.__init__()
self.connect()
if self.write(msg) == True :
self.close()
resp = self.read_all()
return resp
else :
return False
telnet = TELNET()
#call request function
resp = telnet.request('ps www') # it will be return ps output
print(resp) 该代码可以在python3上运行
Stack Overflow用户
发布于 2015-08-19 05:02:08
这些答案中的大多数都是很好的深入解释，我发现它们有点难以理解。简单的答案是Python3x站点上的示例代码是错误的。
要解决此问题，请使用‘telnet.read_until(b“用户名:,3")’而不是‘telnet.read_until(”用户名:,3")’
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/20484984
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