使用Python pysnmp拉取交换机SNMP社区列表

from pysnmp.hlapi import *

community_string = 'public'
switch_ip = '192.168.0.1'

snmp_object = ObjectIdentity('SNMPv2-MIB', 'snmpCommunityTable')
snmp_target = UdpTransportTarget((switch_ip, 161))
snmp_context = ContextData()
snmp_get = getCmd(SnmpEngine(), snmp_context, snmp_target, ContextData(), ObjectType(snmp_object))

error_indication, error_status, error_index, var_binds = next(snmp_get)

if error_indication:
    print('SNMP 请求错误：{}'.format(error_indication))
else:
    if error_status:
        print('SNMP 错误状态：{} at {}'.format(error_status.prettyPrint(), error_index and var_binds[int(error_index) - 1][0] or '?'))
    else:
        for var_bind in var_binds:
            print('SNMP 社区列表：{}'.format(var_bind[1]))