I try solve this error, I can not find way.
I use windows 11.

also, I receaved error” no modeule “nextCmd”….

My code:

from pysnmp.hlapi import *

def snmp_walk(host, community, oid):
    iterator = nextCmd(
        SnmpEngine(),
        CommunityData(community),
        UdpTransportTarget((host, 161)),
        ContextData(),
        ObjectType(ObjectIdentity(oid)),
        lexicographicMode=False
    )

    for (errorIndication, errorStatus, errorIndex, varBinds) in iterator:
        if errorIndication:
            print(f"Error: {errorIndication}")
            break
        elif errorStatus:
            print(f"{errorIndex.prettyPrint()} {errorStatus.prettyPrint()}")
            break
        else:
            for varBind in varBinds:
                print(' = '.join([x.prettyPrint() for x in varBind]))

# Example usage
snmp_walk('172.2.225.22', '223wgw3R', '1.3.6.1.2.1.2.2.1.2')

change libraries version,
install other libraries