[pysnmp-users] Examples

[David G. M. <mac...@be...>]

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I just downloaded pysnmp 3.3.5, and tried to run the following code
lifted from the example on the index page of the 2.x programmer's manual
shipped in the tar file.  I had to modify it slightly to add the
qualifications to the module locations for the imports.

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from pysnmp.compat.pysnmp2x import v2c, role, asn1
req = v2c.GETREQUEST()
req['encoded_oids'] = [ asn1.OBJECTID().encode('1.3.6.1.2.1.1.1.0') ]
tr = role.manager(('10.1.1.10', 161))
(rawrsp, src) = tr.send_and_receive(req.encode())
rsp = v2c.RESPONSE()
rsp.decode(rawrsp)
oids = map(lambda x:x[0], map(asn1.OBJECTID().decode, rsp['encoded_oids']))
vals = map(lambda x: x[0](), map(asn1.decode, rsp['encoded_vals']))
print oids
print vals

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When I run it, I get the following:

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Traceback (most recent call last):
  File "/home/dave/tsnmp.py", line 3, in ?
    req['encoded_oids'] = [ asn1.OBJECTID().encode('1.3.6.1.2.1.1.1.0') ]
  File "/usr/lib/python2.2/site-packages/pysnmp/compat/pysnmp2x/v1.py", line 250, in __setitem__
    return self._wrapper_fun(self._setitem_fun, key, value)
  File "/usr/lib/python2.2/site-packages/pysnmp/compat/pysnmp2x/v2c.py", line 38, in _wrapper_fun
    return apply(v1.CompatBase._wrapper_fun, [self, fun ] + list(args))
  File "/usr/lib/python2.2/site-packages/pysnmp/compat/pysnmp2x/v1.py", line 96, in _wrapper_fun
    raise asn1.BadArgument(why)
pysnmp.compat.pysnmp2x.asn1.BadArgument: Non-ASN1 object [VarBind(name=ObjectName('.1.3.6.1.2.1.1.1.0'), value=BindValue(unspecified=Null(None)))] at VarBindList

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I'm running python 2.2.2 on a Redhat 9 distro.  Can anyone help me out?

Thanks,
Dave