10.2. List Values

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.

Check your understanding

    list-2-1: A list can contain only integer items.
  • False
  • Yes, unlike strings, lists can consist of any type of Python data.
  • True
  • Lists are heterogeneous, meaning they can have different types of data.
Next Section - 10.3. List Length