.txt return specific lines or strings

[ichabod801]

Yes, you are messing up your loop. Every time through the loop Python reads a line and associates that value with the line variable. When you do readline on line 10, you are skipping ahead a line. You don't need to do that, you already have line, so just print(line).

Now a dot can be in a url or not. So you need to check for more than just a dot. I'm assuming this is homework, and you haven't learned the re module yet. In that case I would suggest creating a list of top level domains, like '.org' and '.com'. Then for each line, loop through that list, checking for each top level domain being in the line.