Hi Kyrstian, Try reading the file with ope(file,'r').read() and then split the string using '\n' as the delimiter (this will break the file down into each individual line consisting of several columns). Then string split each line of the file (unsing ' ' as the delimiter), they should now be 3, or more, columns per line, and store each column in a vector - adding each line to the vector with append function. Then place each vector in a list. Now you should have a file to compare with the next one. But watch out for files of varying lengths as they cannot be compared on a one-to-one basis. One you have each file in a list or vector or dictionary or array style, comparison and calculations should be straight forward.
Hope this points you in the right direction. I haven't tried this myself but I have done a similar thing earlier but I strongly believe that it should work. Sincerely, Sheldon -- http://mail.python.org/mailman/listinfo/python-list