The extend () function takes an iterable (list, tuple, set, etc.) as an argument and adds each item to the end of the list. For example, let’s create a second list of colors to append to the first ...

Use tuples when your data cannot change. Many times, a tuple is used in combination with a dictionary, for example, a tuple might represent a key, because it's immutable.

"# characteristics of the tuples: Tuple items are ordered, unchangeable, and allow duplicate values.\n", "# Tuple elements can be of any data type like struct, and they are ordered/indexed like arrays ...