Re: [pysnmp-users] PySNMP 4.3.1 strange prettyPrint() output

[Wei W. <ww...@9r...>]

Hi, Ilya,

Got the latest code from SF.net and installed from that. I am still getting
the same error as I last reported.

2015-11-19 09:38:46,501 ERROR base_events.default_exception_handler:1053
Exception in callback _cbFun(<pysnmp....5dac71d0>, ('10.50.0.12', 161),
'0\x82\x06\\\... \x00\x00\x00')
handle: <Handle _cbFun(<pysnmp....5dac71d0>, ('10.50.0.12', 161),
'0\x82\x06\\\... \x00\x00\x00')>
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/trollius/events.py", line
136, in _run
    self._callback(*self._args)
  File "/usr/local/lib/python2.7/dist-packages/pysnmp/carrier/base.py",
line 63, in _cbFun
    self, transportDomain, transportAddress, incomingMessage
  File "/usr/local/lib/python2.7/dist-packages/pysnmp/entity/engine.py",
line 140, in __receiveMessageCbFun
    self, transportDomain, transportAddress, wholeMsg
  File "/usr/local/lib/python2.7/dist-packages/pysnmp/proto/rfc3412.py",
line 453, in receiveMessage
    cachedParams['cbCtx'])
  File
"/usr/local/lib/python2.7/dist-packages/pysnmp/entity/rfc3413/cmdgen.py",
line 125, in processResponsePdu
    cbFun(snmpEngine, origSendRequestHandle, None, PDU, cbCtx)
  File
"/usr/local/lib/python2.7/dist-packages/pysnmp/entity/rfc3413/cmdgen.py",
line 349, in processResponseVarBinds
    varBindTable, cbCtx):
  File
"/usr/local/lib/python2.7/dist-packages/pysnmp/hlapi/asyncio/cmdgen.py",
line 440, in __cbFun
    (errorIndication, errorStatus, errorIndex,
[vbProcessor.unmakeVarBinds(snmpEngine, varBindTableRow, lookupMib) for
varBindTableRow in varBindTable])
  File "/usr/local/lib/python2.7/dist-packages/pysnmp/hlapi/varbinds.py",
line 37, in unmakeVarBinds
    varBinds = [ObjectType(ObjectIdentity(x[0]),
x[1]).resolveWithMib(mibViewController) for x in varBinds]
  File "/usr/local/lib/python2.7/dist-packages/pysnmp/smi/rfc1902.py", line
728, in resolveWithMib
    raise SmiError('Value %r to type %r convertion failure: %s' %
(self.__args[1],
self.__args[0].getMibNode().getSyntax().__class__.__name__,
sys.exc_info()[1]))
SmiError: Value OctetString(hexValue='555320000000') to type 'OctetString'
convertion failure:
ConstraintsIntersection(ConstraintsIntersection(ConstraintsIntersection(),
ValueSizeConstraint(0, 65535)), ValueSizeConstraint(3, 3)) failed at:
"ValueSizeConstraint(3, 3) failed at: "US "" at OctetString

The octet string value in hex is "555320000000", which when break up into
ASCII, would be U/55, S/53, (space)/20, and two more null/00 characters.
Are the two null characters causing the problem.