I have been reading some older posts on line/list manipulation, but don't quite understand exactly how to implement all of the tools that you guys are using (line.strip() for example) to get what I need. Essentially, I have a working program that iterates through data and outputs it into a file. If one of the lines in the file is blank, the program crashes. I want to know what simple snipet of code I can add to ensure that the program continues iterating. Even more awesome would be a way for the program to let me know at which points in the data blank lines appear. But I would be happy just having the program skip the blank lines.