Python Question Options

[bam]

I need to search a line of text out in a file and replace it, so far the code examples on the net have produced empty files.

Basically the file is a *.conf file, now the structure of the file looks alot like a win *.ini file and in visual basic there is a function to access the sections (the headers in brackets) and each entry (the name with '='). Now the question, does python support or rather have a built in function for handleing that? If yes what is it? If no then how do I do a search and replace? I only have a partial string and want to replace the whole line until the eof(its the last line in the file)

and second question how is the Launcher.conf 'reloaded' after a change, does it get checked every so often?

or even better, what command line will change my wallpaper? Obviously you have the direction I am looking in so far.