Note: Python does not have built-in support for Arrays, but Python lists can be used instead.
Arrays
Arrays are used to store multiple values in one single variable:
Example
Create an array containing car names:
cars = ["Ford", "Volvo", "BMW"]
Output
What is an Array?
An array is a special variable, which can hold more than one value at a time.
If you have a list of items (a list of car names, for example), storing the cars in single variables could look like this:
car1 = "Ford"; car2 = "Volvo"; car3 = "BMW";
However, what if you want to loop through the cars and find a specific one? And what if you had not 3 cars, but 300?
The solution is an array!
An array can hold many values under a single name, and you can access the values by referring to an index number.
Access the Elements of an Array
You refer to an array element by referring to the index number.
Example
Get the value of the first array item:
x = cars[0]
Output
Example
Modify the value of the first array item:
cars[0] = "Toyota"
Output
The Length of an Array
Use the len() method to return the length of an array (the number of elements in an array).
Example
Return the number of elements in the cars array:
x = len(cars)
Output
