Python Forum

Hi All,

something is going wrong and not able to understand. below code is polling lag interface details. I am not able to print using namedtuple.

tLagOperationEntry_list = []
for host in my_devices:
    try:
        session = Session(hostname=host, community='cacti', version=2)
    except easysnmp.EasySNMPConnectionError as e:
        print('Error:- {}'.format(e))
        sys.exit(1)
    try:
        tLagIfIndex,tLagConfigLastChange,tLagLACPPrimaryPort\
        = (list(session.bulkwalk('1.3.6.1.4.1.6527.3.1.2.15.3.1.'+c, \
                                               non_repeaters=0, max_repetitions=50))for c in ('1','2','5'))
    except easysnmp.EasySNMPNoSuchInstanceError as e:
        print('Error:- {}'.format(e))

    finally:

        tLagOperationEntry = namedtuple('tLagOperationEntry','LagIfIndex LagConfigLastChange LagLACPPrimaryPort')
        LagOperationEntry_inters = [tLagOperationEntry(*uple) for uple in zip(*[tLagIfIndex,tLagConfigLastChange,tLagLACPPrimaryPort])]

    for OperationEntry in LagOperationEntry_inters:
        tLagOperationEntry = {}
        tLagOperationEntry['host'] = host
        tLagOperationEntry['interface_index'] = OperationEntry.LagIfIndex.value
        tLagOperationEntry['LagConfigLastChange'] = OperationEntry.LagConfigLastChange.value
        tLagOperationEntry['LagLACPPrimaryPort'] = OperationEntry.LagLACPPrimaryPort.value
        tLagOperationEntry_list.append(tLags)
for data in tLagOperationEntry_list:
     print(data['host'],data['interface_index'],data['LagConfigLastChange'],data['LagLACPPrimaryPort'])

this code showing blank output, however I am able to print individual lists.

Output:
[<SNMPVariable value='1342177330' (oid='enterprises.6527.3.1.2.15.3.1.1.50', oid_index='', snmp_type='INTEGER')>, <SNMPVariable value='1342177331' (oid='enterprises.6527.3.1.2.15.3.1.1.51', oid_index='', snmp_type='INTEGER')>, <SNMPVariable value='1342177332' (oid='enterprises.6527.3.1.2.15.3.1.1.52', oid_index='', snmp_type='INTEGER')>]

There is no other output from your script except lines 27 and 28, unless the except clauses get executed.

thanks Larz60+

one oid's output is not as per expectation, working on this.

and what is the purpose to create list of namedtuples and immediately to create a list of dicts?

Hi Buran,

is there another way? I am following below post, assigning value to variable before print.
https://python-forum.io/Thread-how-to-co...5#pid41095

regards
Anna

(Oct-19-2019, 04:51 AM)anna Wrote: [ -> ]is there another way? I am following below post, assigning value to variable before print.
https://python-forum.io/Thread-how-to-co...5#pid41095

well, exactly what I mean - use directly the namedtuple in the print, without converting to dict