read select data from one file and write to another

[Shameendra]

Hey everyone, can anyone please share with me how i can read data from a file and write selective data from this file to another file? example : I have 10 files from a.txt, b.txt....j.txt and each file has 5 rows and 3 columns. I want to read the first 3 rows and the third column from each file and then save it as .xml file. Can anyone help me on how to achieve this?

I just started with opencv and python last week so please treat me as beginner. I am reading up on this in the meantime but any help would be appreciated. Also i would be grateful if some code and/or reference code can be provided to help me visualize.

[ichabod801]

We don't tend to give code until you've given us an attempt first. You should look into the with operator for opening files (with open('file.txt') as data_file:). You will want a for loop to loop over the different input file names. If you are going to output xml, you will probably want a library to assist that, such as lxml or beautiful soup. Unless your xml is really simple, of course.