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A blazingly fast and Pythonic SNMP library based on the official Net-SNMP bindings

Project description

http://easysnmp.readthedocs.org/en/latest/_static/easysnmp.png

Introduction

This is a fork of the official Net-SNMP Python Bindings but attempts to bring a more Pythonic interface to the library. Check out the Net-SNMP website for more information about SNMP.

This module provides a full featured SNMP client API supporting all dialects of the SNMP protocol.

Why Another Library?

  • The original Net-SNMP Python library is a great starting point but is quite un-Pythonic and lacks proper unit tests and documentation.
  • PySNMP is written in pure Python and therefore has a huge performance hit. In some brief tests, I estimate that both the Net-SNMP Python bindings and Easy SNMP are more than 4 times faster. Further to this, PySNMP has an even less Pythonic interface than the official Net-SNMP bindings.
  • Many other libraries like Snimpy are sadly based on PySNMP and so they suffer the same performance penalty.

Quick Start

There are primarily two ways you can use the Easy SNMP library.

The first is with the use of a Session object which is most suitable when you are planning on requesting multiple pieces of SNMP data from a source.

from easysnmp import Session

# Create an SNMP session to be used for all our requests
session = Session(hostname='localhost', community='public', version=2)

# You may retrieve an individual OID using an SNMP GET
location = session.get('sysLocation.0')

# You may also specify the OID as a tuple (name, index)
# Note: the index is specified as a string as it can be of other types than
# just a regular integer
contact = session.get(('sysContact', '0'))

# And of course, you may use the numeric OID too
description = session.get('.1.3.6.1.2.1.1.1.0')

# Set a variable using an SNMP SET
session.set('sysLocation.0', 'The SNMP Lab')

# Perform an SNMP walk
system_items = session.walk('system')

# Each returned item can be used normally as its related type (str or int)
# but also has several extended attributes with SNMP-specific information
for item in system_items:
    print '{oid}.{oid_index} {snmp_type} = {value}'.format(
        oid=item.oid,
        oid_index=item.oid_index,
        snmp_type=item.snmp_type,
        value=item.value
    )

You may also use Easy SNMP via its simple interface which is intended for one-off operations where you wish to specify all details in the request:

from easysnmp import snmp_get, snmp_set, snmp_walk

# Grab a single piece of information using an SNMP GET
snmp_get('sysDescr.0', hostname='localhost', community='public', version=1)

# Perform an SNMP SET to update data
snmp_set(
    'sysLocation.0', 'My Cool Place',
    hostname='localhost', community='public', version=1
)

# Perform an SNMP walk
snmp_walk('system', hostname='localhost', community='public', version=1)

Documentation

Please check out the Easy SNMP documentation at Read the Docs. This includes install instructions for various operating systems.

Project details


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