Python 2.7 格式化多行PYsnmp 4.4打印输出到Python 2.7的行和列

我是python新手，希望在将打印输出格式化为行和列方面获得一些帮助。这些数据最终将被发送到csv文件

该脚本将从多个主机获取数据。行数以及接口名称和描述的长度是可变的

当前输出如下所示：

hostname IF-MIB::ifDescr.1 = GigabitEthernet0/0/0<br/>
hostname IF-MIB::ifAlias.1 = --> InterfaceDesc<br/>
hostname IF-MIB::ifOperStatus.1 = 'up'<br/>
hostname IF-MIB::ifDescr.2 = GigabitEthernet0/0/1<br/>
hostname IF-MIB::ifAlias.2 = --> InterfaceDesc<br/>
hostname IF-MIB::ifOperStatus.2 = 'up'<br/>
hostname IF-MIB::ifDescr.3 = GigabitEthernet0/0/2<br/>
hostname IF-MIB::ifAlias.3 = --> InterfaceDesc<br/>
hostname IF-MIB::ifOperStatus.3 = 'up'<br/>

我现在的打印代码在这里。我想保留打印语句中的错误

for errorIndication, errorStatus, errorIndex, varBinds in snmp_iter:
            # Check for errors and print out results
            if errorIndication:
                print(errorIndication)
            elif errorStatus:
                print('%s at %s' % (errorStatus.prettyPrint(),
                                errorIndex and varBinds[int(errorIndex) - 1][0] or '?'))
            else:
                for varBind in varBinds:
                    print(hostip),
                    print(' = '.join([x.prettyPrint() for x in varBind]))

完整脚本：

from pysnmp.hlapi import *

routers = ["router1"]

#adds routers to bulkCmd
def snmpquery (hostip):
    snmp_iter = bulkCmd(SnmpEngine(),
                        CommunityData('Community'),
                        UdpTransportTarget((hostip, 161)),
                        ContextData(),
                        0, 50,  # fetch up to 50 OIDs 
                        ObjectType(ObjectIdentity('IF-MIB', 'ifDescr')),
                        ObjectType(ObjectIdentity('IF-MIB', 'ifAlias')),
                        ObjectType(ObjectIdentity('IF-MIB', 'ifOperStatus')),
                        lexicographicMode=False) # End bulk request once outside of OID child objects
    for errorIndication, errorStatus, errorIndex, varBinds in snmp_iter:
        # Check for errors and print out results
        if errorIndication:
            print(errorIndication)
        elif errorStatus:
            print('%s at %s' % (errorStatus.prettyPrint(),
                            errorIndex and varBinds[int(errorIndex) - 1][0] or '?'))
        else:
            for rowId, varBind in enumerate(varBindTable):
                oid, value = varBind
                print('%20.20s' % value)
                if not rowId and rowId % 3 == 0:
                    print('\n')

# calls snmpquery for all routers in list
for router in routers:
    snmpquery(router)

非常感谢您提供的任何帮助。

---

谢谢

假设使用三个snmp表列初始化了

snmp\u iter

：

snmp_iter = bulkCmd(SnmpEngine(),
                    UsmUserData('usr-md5-des', 'authkey1', 'privkey1'),
                    Udp6TransportTarget(('demo.snmplabs.com', 161)),
                    ContextData(),
                    0, 25,
                    ObjectType(ObjectIdentity('IF-MIB', 'ifDescr')),
                    ObjectType(ObjectIdentity('IF-MIB', 'ifAlias')),
                    ObjectType(ObjectIdentity('IF-MIB', 'ifOperStatus')))

您可以确保（对于GETNEXT和GETBULK命令），pysnmp总是以逐行方式返回矩形表

知道您请求的列数（3）您应该能够逐行打印输出：

for rowId, varBind in enumerate(varBindTable):
    oid, value = varBind
    print('%20.20s' % value)
    if not rowId and rowId % 3 == 0:
        print('\n')

---

谢谢IIya，我应该定义varBindTable并给它分配一个varBinds值吗？点击send to尽快。是的，snmp_inter由三个snmp表初始化。我添加了完整的脚本

for rowId, varBind in enumerate(varBindTable):
    oid, value = varBind
    print('%20.20s' % value)
    if not rowId and rowId % 3 == 0:
        print('\n')