Python Array reverse() Method

The Python arrayreverse() method is used to reverse the order of the items in an array.

Syntax

Following is the syntax of Python arrayreverse() method −

array_name.reverse()

Parameters

This method does not accept any parameter.

Return Value

This method does not return any value.

Example 1

Following is the basic example of python arrayreverse() method −

import array as arr#Creating an arraymy_array1 = arr.array('i',[40,50,60,15,90,20])#Printing the elements of an arrayprint("Original Array: ",my_array1)#reversing the arraymy_array1.reverse()print("Reversed Array: ", my_array1)

Output

Following is the output of the above code −

Original Array:  array('i', [40, 50, 60, 15, 90, 20])Reversed Array:  array('i', [20, 90, 15, 60, 50, 40])

Example 2

Lets understand with different datatype, Here we have created an array ofdouble datatype.

import array as arr#Creating an arraymy_array2 = arr.array('d',[13.5,45.7,99.5,1.5,8.9,22.5])#Printing the elements of an arrayprint("Original Array: ",my_array2)#reversing the arraymy_array2.reverse()print("Reversed Array: ", my_array2)

Output

Following is the output of the above code −

Original Array:  array('d', [13.5, 45.7, 99.5, 1.5, 8.9, 22.5])Reversed Array:  array('d', [22.5, 8.9, 1.5, 99.5, 45.7, 13.5])

Example 3

Lets try toreverse an array without using reverse() method −

import array as arr#Creating an arraymy_array3 = arr.array('i',[45,55,65,75,85,95])#creating an empty arrayrev_array=arr.array('i',[])#Printing the elements of an original arrayprint("Original Array : ",my_array3)#reversing the an array and appending into rev_arraylength=len(my_array3)for i in range(0,length):    rev_array.append(my_array3[length-1-i])#Updating original array[my_array3]   my_array3=rev_array    print("Reversed Array: ", my_array3)

Output

Original Array:  array('i', [45, 55, 65, 75, 85, 95])Reversed Array:  array('i', [95, 85, 75, 65, 55, 45])

Example 4

In Python list is similar to array, Here we have created an array of string −

#Creating a string arraymy_array4=["Apple","Bat","Cat","Dog"]#reversing the string arraymy_array4.reverse()print(my_array4)

['Dog', 'Cat', 'Bat', 'Apple']