Using to read in ifconfig logs and add up total network traffic (VM network) across multiple hosts.
I needed to combine files from multiple hosts, sort values and combine by date and time.
I was sorting and parsing into python dicts.
I looked at perl PDL and other data manipulation libs.
But looks like python pandas wins because it combines VERY FLEXIBLE file IO with a lot of methods for selecting rows/columns and manipulating the data.
I made a simple test to make sure I knew how it all worked and described it here: