pysnmp snmpwalk

from pysnmp.entity.rfc3413.oneliner import cmdgen

cmdGen = cmdgen.CommandGenerator()

# varBindTable是个list，元素的个数可能有好多个。它的元素也是list，这个list里的元素是ObjectType，个数只有1个。
errorIndication, errorStatus, errorindex, varBindTable = cmdGen.nextCmd(
    cmdgen.CommunityData('public'),
    cmdgen.UdpTransportTarget(('127.0.0.1', 161)),
    '1.3.6.1.2.1.25.6.3.1',
)

if errorIndication:
    print(errorIndication)
elif errorStatus:
    print('%s at %s' % (
        errorStatus.prettyPrint(),
        errorindex and varBinds[int(errorindex) - 1][0] or '?'
    )
          )

for varBindTableRow in varBindTable:
    for item in varBindTableRow:
        print(item)