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Examples scripts
================
.. toctree::
:maxdepth: 2
SNMP is not really simple (PySNMP implementation takes over 15K lines of
Python code), but PySNMP tries to isolate the complexities and let you
perform typical SNMP operations in a quick and intuitive way.
PySNMP offers three groups of programming interfaces to deal with
SNMP protocol. In the order from most consice to most detailed those
APIs are:
#. High-level API
.. toctree::
:maxdepth: 2
/examples/v3arch/asyncore/oneliner/contents
#. Complete implementation of all official Standard SNMP Applications. It
should let you implement any SNMP operation defined in the standard.
This API comes in several transport varieties.
#. Most mature and stable transport implementation is based on Python's
bult-in asyncore module. So this API is called Native or Asyncore API.
.. toctree::
:maxdepth: 2
/examples/v3arch/asyncore/contents
#. Modern, co-routines based API takes shape of asyncio bindings
(Python 3.3+) or Trollius bindings (Python 2.6-3.4)
.. toctree::
:maxdepth: 2
/examples/v3arch/asyncio/contents
/examples/v3arch/trollius/contents
#. Slightly aged, Twisted-based based API.
.. toctree::
:maxdepth: 2
/examples/v3arch/twisted/contents
#. Packet-level API that lets you build SNMP messages from Python
objects and exchange them through asyncore transport (or you could
write your own). These interfaces are very low-level and aimed at
a rather specific programming tasks.
.. toctree::
:maxdepth: 2
/examples/v1arch/asyncore/contents
Before doing cut&paste of the code below into your Python interpreter,
make sure to install pysnmp and its dependencies by running pip or
easy_install: ::
# pip pysnmp
There's a public SNMP responder configured at *demo.snmplabs.com:161* to
let you run PySNMP examples scripts in a cut&paste fashion. If you
wish to use your own SNMP Agent with these scripts, make sure to either
configure your local snmpd and/or snmptrapd or use a valid address and
SNMP credentials of your SNMP Agent in the examples to let them work.
If you find your PySNMP application behaving unexpectedly, try to enable
a /more or less verbose/ built-in PySNMP debugging by adding the
following snippet of code at the beginning of your application:
.. code-block:: python
from pysnmp import debug
# use specific flags or 'all' for full debugging
debug.setLogger(debug.Debug('dsp', 'msgproc', 'secmode'))
Then run your app and watch stderr. The Debug initializer enables debugging
for a particular PySNMP subsystem, 'all' enables full debugging. More
specific flags are:
* io
* dsp
* msgproc
* secmod
* mibbuild
* mibview
* mibinstrum
* acl
* proxy
* app
For more details on PySNMP programming model and interfaces, please
refer to the documentation.
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