While we can use all of Python from the REPL, this is not a good way to produce a final application. Most of what we do with Python will be done via script files. We'll look at script files in detail in Chapter 12, Scripts, Modules, Packages, Libraries, and Applications. For now, we'll look at a few features.
A script file has to follow a few rules:
\n), as well as Windows CR-LF (
\r\n). Only a few Windows tools, such as Notepad, insist on CR-LF ...