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.. include:: /includes/_links.rst
Garbled SNMP values (apps)
--------------------------
Q. When my PySNMP application prints out fetched values, some of them
come out as a garbage on my screen. Here's my code:
.. code-block:: python
for varBind in varBinds:
print(' = '.join([ str(x) for x in varBind ])
and the result is:
.. code-block:: python
1.3.6.1.4.1.161.19.3.2.1.63.0 = 50000
1.3.6.1.4.1.161.19.3.2.1.4.0 = '\x01\x02\x03\x04'
The IpAddress type seems to be the only one with this problem.
A. Always use prettyPrint() method for all PyASN1-based objects -- it
automatically converts ASN.1 types to human-friendly form.
.. code-block:: python
> > > from pysnmp.proto import rfc1902
> > > a = rfc1902.IpAddress('1.2.3.4')
> > > str(a)
'\x01\x02\x03\x04'
> > > a
IpAddress('1.2.3.4')
> > > a.prettyPrint()
'1.2.3.4'
> > > rfc1902.IpAddress.prettyPrint(a)
'1.2.3.4'
See `PyASN1`_ docs for more information on PyASN1 data model.
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