chophouse 25 Newbie Poster

What line is causing the error. Perhaps you could post the error message?

It sounds like one of your el.find statements is coming up empty (None) and that's causing the error

chophouse 25 Newbie Poster

Guessing here, but maybe you need to give the full absolute path:
'C:\Users\spreston\Desktop\HeadFirst\Chapter 3'

assuming that is what the full absolute path is, of course

chophouse 25 Newbie Poster

I'm new too (couple months), but you have to write code, not forever think about what might work.

Try something, get it to work, then try the next thing.

For instance write the code to ask the user to input a list of 20 integers. Make that work, then try the next step of analyzing the numbers. Post here (post the code) when you get stuck. Or if it's easier for you, write the code to do the analysis and hard code the 20 integers. Get that to work, then write the input part. Once both are done, combine them, substituting the input 20 integers for the hard coded 20 part.

But ya gotta write something first !