Python Script to Convert Text File to CSV

I have a text file that I need converted into a CSV using Python. The format currently is this: http://string/variable/-firstname-lastname/variable http://string/variable/-firstname-lastname/variable http://string/variable/-firstname-lastname/variable Any line that does not parse properly should simply be dumped. The "/"'s are always as described with a / before and after the firstname lastname combination. The first "http://string/variable/" is the same depending on what I'm doing, so it needs to be configurable in the script. I need the Firstname and Lastname separated out as one field and without any dashes (convert dashes to spaces unless preceding a name or trailing). I would also need the entire link assigned a field. It would also have to parse the source file into a series of 2MB files (Preferably configurable in the script) Make sense? Thanks.