How to get the following items in next_cmd?

[kovenko]

# pip install pysnmp pysnmp-mibs

import asyncio
from pysnmp.hlapi.v3arch.asyncio import *

async def walk(host, port, community):
    return next_cmd(
        SnmpEngine(),
        CommunityData(community, mpModel=1),
        await UdpTransportTarget.create((host, port)),
        ContextData(),
        ObjectType(ObjectIdentity('IF-MIB', 'ifIndex')),
        ObjectType(ObjectIdentity('IF-MIB', 'ifDescr')),
        ObjectType(ObjectIdentity('IF-MIB', 'ifType')),
        ObjectType(ObjectIdentity('IF-MIB', 'ifSpeed'))
    )

async def main():
    errorIndication, errorStatus, errorIndex, varBind = await walk('asr.loc', 161, 'PUB')
    print(''.join([x.prettyPrint()+'\n' for x in varBind]))

    errorIndication, errorStatus, errorIndex, varBind = await walk('asr.loc', 161, 'PUB')
    print(''.join([x.prettyPrint()+'\n' for x in varBind]))

    errorIndication, errorStatus, errorIndex, varBind = await walk('asr.loc', 161, 'PUB')
    print(''.join([x.prettyPrint()+'\n' for x in varBind]))

if __name__ == '__main__':
    asyncio.run(main())
    pass

Result loop

IF-MIB::ifIndex.1 = 1
IF-MIB::ifDescr.1 = GigabitEthernet0/0/0
IF-MIB::ifType.1 = ethernetCsmacd
IF-MIB::ifSpeed.1 = 1000000000

IF-MIB::ifIndex.1 = 1
IF-MIB::ifDescr.1 = GigabitEthernet0/0/0
IF-MIB::ifType.1 = ethernetCsmacd
IF-MIB::ifSpeed.1 = 1000000000

IF-MIB::ifIndex.1 = 1
IF-MIB::ifDescr.1 = GigabitEthernet0/0/0
IF-MIB::ifType.1 = ethernetCsmacd
IF-MIB::ifSpeed.1 = 1000000000

[lextm]

Please first read #429.

[kovenko]

Thank you!
I'm not a native English speaker, and translating this volume of text using links will take until next year.
I'll use version 4, nextCmd has lots of working examples.
One working example would be enough for most tasks, instead of text in links.