Once you know how to add and use a Python module, you will greatly extend the capabilities of the language. A Python module is an external class or set of functions that exist outside the main ...

but the scope of a name defined at the module level is the whole module. For more details, see Python’s documentation. Now, let’s say we create a list with a string in it, like this ...

but also contain executable code that will not explicitly run when a module is imported. While not required, use of Python's name equals main syntax is considered a best practice, especially in ...