[pysnmp-users] Notification Originator example fails (pysnmp 4.2.5 / Python 3.4)

[Марат Р. <mar...@gm...>]

Hello,

I would like to use pysnmp 4.2.5 (installed via pip) to send SNMP traps. I
tried running the following example (taken from
http://pysnmp.sourceforge.net/examples/current/v3arch/oneliner/agent/ntforg/trap-v2c-with-mib-lookup.py
):

---
from pysnmp.entity.rfc3413.oneliner import ntforg

ntfOrg = ntforg.NotificationOriginator()

errorIndication = ntfOrg.sendNotification(
    ntforg.CommunityData('public'),
    ntforg.UdpTransportTarget(('localhost', 162)),
    'trap',
    ntforg.MibVariable('SNMPv2-MIB', 'coldStart'),
    ( ntforg.MibVariable('SNMPv2-MIB', 'sysName', 0), 'new name' )
)

if errorIndication:
    print('Notification not sent: %s' % errorIndication)
---

When I run it with Python 3.4.2 I get this:

---
Exception ignored in: <bound method AsynNotificationOriginator.__del__ of
<pysnmp.entity.rfc3413.oneliner.ntforg.AsynNotificationOriginator object at
0x7fd0a07a4978>>
Traceback (most recent call last):
  File
"/usr/local/lib/python3.4/site-packages/pysnmp/entity/rfc3413/oneliner/ntforg.py",
line 33, in __del__
    def __del__(self): self.uncfgNtfOrg()
  File
"/usr/local/lib/python3.4/site-packages/pysnmp/entity/rfc3413/oneliner/ntforg.py",
line 100, in uncfgNtfOrg
    for authDataKey in authDataKeys:
RuntimeError: dictionary changed size during iteration
---

With Python 2.7.8 the example works just fine.

Is the example not applicable to pysnmp 4.2.5 / Python 3.4?

Best regards,
Marat Rysbekov