I would add - unless it's a very short snippet and you understand exactly what it does. My top SO answer is how to convert and IP address from string to integer

I would add - unless it's a very short snippet and you understand exactly what it does. My top SO answer is how to convert and IP address from string to integer representation in Python. It's one or two lines, it's perfectly fine to copy that sort of thing. I've actually copied my own code from SO on several occasions.