question about splitting a large file

Question

Hey I need to split a large file in python into smaller files that contain only specific lines. How do I do this?

Answer 1

First, open the big file for reading.

Second, open all the smaller file names for writing.

Third, iterate through every line. Every iteration, check to see what kind of line it is, then write it to that file.

More info on File I/O: http://docs.python.org/tutorial/inputoutput.html