我有一个网络设备，我需要通过telnet自动登录，提取特定信息，获取该信息并将其与excel电子表格进行比较。我已经成功地让python做了。当我尝试循环这个过程时出现问题，它在第二次出错时出错。此外，我知道必须有一个更有效的方法来做到这一点，请记住，我现在只编写了几个星期。
import openpyxl
from openpyxl import load_workbook
from openpyxl import Workbook
import sys
import os
import telnetlib
import time
usnm = "Username"
pswd = "Password"
cmd_exit = "exit"
cmd_tty = "dmstty 11"
cmd_bang = "!!!!"
cmd_logi = "logi"
cmd_pass = "0000"
cmd_logo = "logo"
cmd_que_stn = "que stn "
cmd_oamp_dn = "oamp dn"
cmd_csel = "csel none"
cmd_star = "****"
tn = telnetlib.Telnet("X.X.X.X" , "23", timeout = 5)
LG_WB = load_workbook('LEN_GWE.xlsx')
LG_SH = LG_WB.active
GWE = 0
OCM = 0
QUIT = 0
print("Loading...")
while QUIT == 0:
LEVEL_ONE = input('Type LEN, GWE, or PHONE: ')
if LEVEL_ONE == "GWE":
LEVEL_TWO = input('GWE# ')
for i in range(2, LG_SH.max_row+1):
GWE_INPUT = LG_SH.cell(row=i, column=6).value
if GWE_INPUT == int(LEVEL_TWO):
for x in range(1, 4):
INFO = LG_SH.cell(row=i, column=x).value
print(INFO)
if LEVEL_ONE == "LEN":
LEVEL_TWO = input('LEN# ')
for i in range(2, LG_SH.max_row+1):
LEN = LG_SH.cell(row=i, column=5).value
if LEN == int(LEVEL_TWO):
for x in range(1, 4):
INFO = LG_SH.cell(row=i, column=x).value
print(INFO)
if LEVEL_ONE == "PHONE":
phone = input("TYPE PHONE# ")
tn.read_until(b"user: ")
tn.write((usnm + "\r\n").encode('ascii'))
tn.read_until(b"password: ")
tn.write((pswd + "\r\n").encode('ascii'))
tn.read_until(b"$ ")
tn.write((cmd_tty + "\r\n").encode('ascii'))
tn.read_until(b" dmstty is starting....")
tn.write((cmd_bang + "\r\n").encode('ascii'))
tn.read_until(b" ! ")
tn.write((cmd_logi + "\r\n").encode('ascii'))
tn.read_until(b" PASS? ")
tn.write((cmd_pass + "\r\n").encode('ascii'))
tn.read_until(b" # ")
tn.write((cmd_csel + "\r\n").encode('ascii'))
tn.read_until(b" # ")
tn.write((cmd_oamp_dn + "\r\n").encode('ascii'))
tn.read_until(b" REQ ")
tn.write((cmd_que_stn + phone + "\r\n").encode('ascii'))
output = tn.read_until(b" REQ ")
file = open("log.txt", "w")
file.write(str(output))
file.close()
tn.write((cmd_star + "\r\n").encode('ascii'))
tn.read_until(b" # ")
tn.write((cmd_logo + "\r\n").encode('ascii'))
tn.read_until(b"$ ")
tn.write((cmd_exit + "\r\n").encode('ascii'))
tn.close()
read_log = open("log.txt", "r")
new_log = open("new_log.txt", "w")
with read_log as f:
for line in f:
for word in line.split():
new_log.write(word + "\n")
read_log.close()
new_log.close()
read_new = open("new_log.txt", "r")
for line in read_new:
if "GWE" in line:
X = read_new.read()
GWE_LOG = open("GWE_LOG.txt", "w")
GWE_LOG.write(X)
GWE_LOG.close()
READ_GWE_LOG = open("GWE_LOG.txt", "r")
with READ_GWE_LOG as f:
PULL_GWE = f.readline()
GWE = GWE + int(PULL_GWE)
READ_GWE_LOG.close()
for i in range(2, LG_SH.max_row+1):
GWE_INPUT = LG_SH.cell(row=i, column=6).value
if GWE_INPUT == GWE:
for x in range(1, 4):
INFO = LG_SH.cell(row=i, column=x).value
print(INFO)
GWE = 0
if "OCMA" in line:
print("LEN GROUP IS OCMA")
X = read_new.readlines()
OCM_LOG = open("OCM_LOG.txt", "w")
OCM_LOG.writelines(X[2:])
OCM_LOG.close()
READ_OCM_LOG = open("OCM_LOG.txt", "r")
with READ_OCM_LOG as f:
PULL_OCM = f.readline()
OCM = OCM + int(PULL_OCM)
READ_OCM_LOG.close()
for i in range(2, LG_SH.max_row+1):
LEN = LG_SH.cell(row=i, column=5).value
if LEN == OCM:
for x in range(1, 4):
INFO = LG_SH.cell(row=i, column=x).value
print(INFO)
OCM = 0
if "OCMB" in line:
print("LEN GROUP IS OCMB")
X = read_new.readlines()
OCM_LOG = open("OCM_LOG.txt", "w")
OCM_LOG.writelines(X[2:])
OCM_LOG.close()
READ_OCM_LOG = open("OCM_LOG.txt", "r")
with READ_OCM_LOG as f:
PULL_OCM = f.readline()
OCM = OCM + int(PULL_OCM)
READ_OCM_LOG.close()
for i in range(2, LG_SH.max_row+1):
LEN = LG_SH.cell(row=i, column=5).value
if LEN == OCM:
for x in range(1, 4):
INFO = LG_SH.cell(row=i, column=x).value
print(INFO)
OCM = 0
if "OCMC" in line:
print("LEN GROUP IS OCMC")
X = read_new.readlines()
OCM_LOG = open("OCM_LOG.txt", "w")
OCM_LOG.writelines(X[2:])
OCM_LOG.close()
READ_OCM_LOG = open("OCM_LOG.txt", "r")
with READ_OCM_LOG as f:
PULL_OCM = f.readline()
OCM = OCM + int(PULL_OCM)
READ_OCM_LOG.close()
for i in range(2, LG_SH.max_row+1):
LEN = LG_SH.cell(row=i, column=5).value
if LEN == OCM:
for x in range(1, 4):
INFO = LG_SH.cell(row=i, column=x).value
print(INFO)
OCM = 0
当我尝试进行第二次搜索时，我收到以下错误：Screenshot of error
从屏幕截图中可以看出，telnet连接已关闭，因此出现了循环错误。调试此方法的最佳方法是读取每一行输出并尝试确定连接关闭的位置。
iter=0
while True:
iter = iter + 1
# Check for new line
line = telnet.read_until(('\r\n').encode('ascii'), timeout=1)
a = (line.decode("ascii"))
print(a)
time.sleep(1)
if iter == 10:
break
在许多可疑点使用此代码，以查看read_until错过了哪些输出。
祝你好运调试！