网络设备巡检自动化

import netmiko
from netmiko import ConnectHandler
import time
import os

today = time.strftime("%Y-%m-%d", time.localtime())
switch_with_authentication_issue = []
switch_not_reachable = []
show_cmd = '\n show ver \n' \
           'show run \n' \
           'show fan \n' \
           'show env all'

def session(devlist):
    try:
        list = line.split(",")
        # hostname = list[0]
        hostname = str(list[0])
        devtype = list[1]
        ip = list[2]
        admin = list[3]
        devpasswd = list[4]
        secret = list[4].replace('\n', '')  # 去除换行符
        conn_s = ConnectHandler(device_type=devtype,
                              host=ip,
                              username=admin,
                              password=devpasswd,
                              secret=secret,
                              )
        conn_s.enable()
        time.sleep(1)
        conn_n = ConnectHandler(device_type=devtype,
                              host=ip,
                              username=admin,
                              password=devpasswd,
                              )
        print(f'已成功登陆交换机{hostname}')
        if devtype == 'hp_comware':
            output = conn_n.send_command_timing('screen-length disable\n dis cu ')
        elif devtype == 'huawei_telnet':
            output = conn_n.send_command_timing('screen-length 0 temporary\n dis cu')
        elif devtype == 'juniper_junos':
            output = conn_s.send_command_timing('show configuration | display set | no-more')
        elif devtype == 'cisco_ios_telnet':
            # output = conn.send_command_timing('\n terminal length 0 \n show running-config \n show ver \n show env all')
            output = conn_s.send_command_timing(show_cmd)
        conn_s.disconnect()
        conn_n.disconnect()
        logname = "E:\Python\python_Shell/" + today + "/" + hostname + "_" + today + ".log"
        time.sleep(2)
        try:
            os.mkdir("E:\Python\python_Shell/" + today + "/")
        except OSError:
            pass
        wr = open(logname, 'a' or 'w')
        wr.write(output)
        wr.close()
    except netmiko.NetmikoAuthenticationException:
        print(hostname + "用户验证失败！")
        switch_with_authentication_issue.append(ip)
    except netmiko.ssh_exception.NetmikoTimeoutException:
        print(hostname + "目标不可达！")
        switch_not_reachable.append(ip)

devlist = open('E:/Python/python_Shell/device_pwd.txt', 'r')
for line in devlist.readlines():
   session(line)
for i in switch_with_authentication_issue:
    print(f"  {i}")

for i in switch_not_reachable:
    print(f"  {i}")