"""
SNMPv1 TRAP with defaults
+++++++++++++++++++++++++

Send SNMPv1 TRAP through unified SNMPv3 message processing framework
using the following options:

* SNMPv1
* with community name 'public'
* over IPv4/UDP
* send TRAP notification
* with Generic Trap #1 (warmStart) and Specific Trap 0
* with default Uptime
* with default Agent Address
* with Enterprise OID 1.3.6.1.4.1.20408.4.1.1.2
* include managed object information '1.3.6.1.2.1.1.1.0' = 'my system'

Functionally similar to:

| $ snmptrap -v1 -c public demo.snmplabs.com \
|   1.3.6.1.4.1.20408.4.1.1.2 \
|   0.0.0.0 \
|   1 \
|   0 \
|   0
|   '1.3.6.1.2.1.1.1.0' s 'my system'

"""#
import asyncio
from pysnmp.hlapi.asyncio import *

@asyncio.coroutine
def run():
    snmpEngine = SnmpEngine()
    errorIndication, errorStatus, errorIndex, varBinds = yield from sendNotification(
        snmpEngine,
        CommunityData('public', mpModel=0),
        UdpTransportTarget(('localhost', 162)),
        ContextData(),
        'trap',
        NotificationType(
            ObjectIdentity('1.3.6.1.6.3.1.1.5.2')
        ).addVarBinds(
            ('1.3.6.1.6.3.1.1.4.3.0', '1.3.6.1.4.1.20408.4.1.1.2'),
            ('1.3.6.1.2.1.1.1.0', OctetString('my system'))
        )
    )

    if errorIndication:
        print(errorIndication)

    snmpEngine.transportDispatcher.closeDispatcher()

asyncio.get_event_loop().run_until_complete(run())
