+=head2 Example 2
+
+ import sys
+ sys.path.append('/path/to/rrdtool/lib/python2.6/site-packages/')
+ import rrdtool
+
+ # in real life data_sources would be populated in loop or something similar
+ data_sources=[ 'DS:speed1:COUNTER:600:U:U',
+ 'DS:speed2:COUNTER:600:U:U',
+ 'DS:speed3:COUNTER:600:U:U' ]
+
+ rrdtool.create( 'speed.rrd',
+ '--start', '920804400',
+ data_sources,
+ 'RRA:AVERAGE:0.5:1:24',
+ 'RRA:AVERAGE:0.5:6:10' )
+