A list is a sequential collection of Python data values, where each value is identified by an index. The values that make up a list are called its elements. Lists are similar to strings, which are ordered collections of characters, except that the elements of a list can have any type and for any one list, the items can be of different types.
There are several ways to create a new list. The simplest is to enclose the elements in square brackets ( [ and ]).
[10, 20, 30, 40]["spam", "bungee", "swallow"]
The first example is a list of four integers. The second is a list of three strings. As we said above, the elements of a list don’t have to be the same type. The following list contains a string, a float, an integer, and another list.
["hello", 2.0, 5, [10, 20]]
A list within another list is said to be nested and the inner list is often called a sublist. Finally, there is a special list that contains no elements. It is called the empty list and is denoted [].
As you would expect, we can also assign list values to variables and pass lists as parameters to functions.