Checkpoint 4.2.1.
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.
Section 4.2 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.
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