File: waive-mib-lookup.py

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"""
Waive MIB lookup
++++++++++++++++

Perform SNMP GETNEXT operation with the following options:

* with SNMPv2c, community 'public'
* over IPv4/UDP
* to an Agent at demo.snmplabs.com:161
* for an OID in string form
* do not resolve response OIDs and values into human-freidly form

False lookupMib keyword arguments could make pysnmp waiving 
OIDs and values resolution in response variable-bindings, into human
friendly form.

Functionally similar to:

| $ snmpwalk -v2c -c public -ObentU demo.snmplabs.com 1.3.6.1.2.1

"""#
from pysnmp.hlapi import *

for (errorIndication,
     errorStatus,
     errorIndex,
     varBinds) in nextCmd(SnmpEngine(),
                          CommunityData('public'),
                          UdpTransportTarget(('demo.snmplabs.com', 161)),
                          ContextData(),
                          ObjectType(ObjectIdentity('1.3.6.1.2.1.1')),
                          lookupMib=False):

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