gistfile1.txt

In [105]: rrdtool.fetch('/usr/local/nav/var/cricket-data/router-interfaces/teknobyen-gw2.uninett.no/gi2_48.rrd', 'AVERAGE', '-s -10min')
Out[105]: 
((1337861400, 1337862300, 300),
 ('ds0', 'ds1', 'ds2', 'ds3', 'ds4', 'ds5'),
 [(1475554.8211598189,
   3410796.9613607405,
   0.0,
   0.0,
   3310.0786953319403,
   3745.4225857173838),
  (2109230.5088412776,
   2686027.275938659,
   0.0,
   0.0,
   3410.4191300648204,
   3632.1211039434111),
  (None, None, None, None, None, None)])