For your task the use of lists and the split tool may help. The different lines have are seperated by a '\n' (which is interpreted as a new line). After splitting the string into a line list you can make a loop each item of this list. Something like this:
output='7839|16\n7839|17\n7839|22\n7839|23\n7839|24' seccond_column_list=[] max_value=0 line_list=output.split('\n') for line in line_list: columns=line.split('|') seccond_column_list.append(float(columns[1])) max_value=max(seccond_column_list) print seccond_column_list print max_value I may missunderstood your question but I hope this helps. -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Feed-and-manipulate-the-result-of-v-distance-pa-in-python-tp5371195p5372457.html Sent from the Grass - Users mailing list archive at Nabble.com. _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user