What am I doing wrong?

[ichabod801]

You are still making redundant function calls at the end of the program. As I said, all you need at the end is one call to writeFile, that calls all the other functions.

If you enter a bad file for the input file, you will get an error on return lines, because lines never gets defined if there is an error reading the file. I would define lines at the top of that function as an empty list. Then it won't cause an error, and it will just go through and write an empty file.