rrdpython

SYNOPSIS

 import rrdtool
 rrdtool.create('/tmp/test.rrd', 'DS:foo:GAUGE:20:0:U')

DESCRIPTION

The rrdtool functions are directly callable via the Python programming language. This wrapper implementation has been written from the scratch (without SWIG)

The API's simply expects string parameters to the functions. Please refer to the other rrdtool documentation for functions and valid arguments.

EXAMPLE

 import sys
 sys.path.append('/path/to/rrdtool/lib/python2.3/site-packages/')
 import rrdtool, tempfile

 DAY = 86400
 YEAR = 365 * DAY
 fd,path = tempfile.mkstemp('.png')

 rrdtool.graph(path,
              '--imgformat', 'PNG',
              '--width', '540',
              '--height', '100',
              '--start', "-%i" % YEAR,
              '--end', "-1",
              '--vertical-label', 'Downloads/Day',
              '--title', 'Annual downloads',
              '--lower-limit', '0',
              'DEF:downloads=downloads.rrd:downloads:AVERAGE',
              'AREA:downloads#990033:Downloads')

 info = rrdtool.info('downloads.rrd')
 print info['last_update']
 print info['ds']['downloads']['minimal_heartbeat']

If you use the site-python-install make target you can drop to first sys.path.append line since the rrdtool module will be available everywhere.

If rrdtool runs into trouble, it will throw an exception which you might want to catch.

SEE ALSO

rrdcreate, rrdupdate, rrdgraph, rrddump, rrdfetch, rrdtune, rrdlast, rrdxport, rrdinfo

AUTHOR

Hye-Shik Chang <perky@i18n.org>

Alan Milligan <alan.milligan@last-bastion.net>

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