Python Arrays

Arrays are used to store multiple values in one single variable:

cars = ["Ford", "Volvo", "BMW"]

Access the Elements of an Array

You refer to an array element by referring to the index number.

x = cars[0]

cars[0] = "Toyota"

The Length of an Array

Use the len() method to return the length of an array (the number of elements in an array).

x = len(cars)

Looping Array Elements

You can use the for in loop to loop through all the elements of an array.

for x in cars:
  print(x)

Adding Array Elements

You can use the append() method to add an element to an array.

cars.append("Honda")

Removing Array Elements

You can use the pop() method to remove an element from the array.

cars.pop(1)

cars.remove("Volvo")

Array Methods

Python has a set of built-in methods that you can use on lists/arrays.