Which array method in Python is used to add an element to the end of the array?

The .append() method in Python is used to add a single element to the end of an array. This method modifies the original array by adding the new element to the end of the sequence.

from array import array
numbers = array('i', [1, 2, 3])
numbers.append(4)
print(numbers)  # Outputs array('i', [1, 2, 3, 4])

The .append() method is useful when you need to dynamically add elements to an array without having to create a new array or manually manage indices.

Using the .append() method simplifies the process of adding elements to arrays, making your code more efficient and easier to maintain.