How do I iterate over a sequence in reverse order in Python?

Python Sequences includes Strings, Lists, Tuples, etc. We can merge elements of a Python sequence using different ways. Let's see some examples of iteration over a List in reverse order.

Iterate in Reverse Order using while loop

Example

In this example, we have a List as a sequence and iterate it in reverse order using the while loop ?

 # Creating a List mylist = ["Jacob", "Harry", "Mark", "Anthony"] # Displaying the List print("List = ",mylist) # Length - 1 i = len(mylist) - 1 # Iterate in reverse order print("Display the List in Reverse order = ") while i >= 0 : print(mylist[i]) i -= 1 
 
 
 

Output

List = ['Jacob', 'Harry', 'Mark', 'Anthony'] Display the List in Reverse order = Anthony Mark Harry Jacob 

Iterate in Reverse Order using for loop

Example

In this example, we have a List as a sequence and iterate it in reverse order using the for loop ?

 # Creating a List mylist = ["Jacob", "Harry", "Mark", "Anthony"] # Displaying the List print("List = ",mylist) # Iterate in reverse order print("Display the List in Reverse order = ") for i in range(len(mylist) - 1, -1, -1): print(mylist[i]) 
 
 
 

Output

List = ['Jacob', 'Harry', 'Mark', 'Anthony'] Display the List in Reverse order = Anthony Mark Harry Jacob 

Iterate in Reverse Order using reversed()

Example

In this example, we have a List as a sequence and iterate it in reverse order using the reversed() method ?

 # Creating a List mylist = ["Jacob", "Harry", "Mark", "Anthony"] # Displaying the List print("List = ",mylist) # Iterate in reverse order using reversed() print("Display the List in Reverse order = ") [print (i) for i in reversed(mylist)] 
 
 
 

Output

List = ['Jacob', 'Harry', 'Mark', 'Anthony'] Display the List in Reverse order = Anthony Mark Harry Jacob 

Iterate in Reverse Order using Negative Indexing

Example

In this example, we have a List as a sequence and iterate it in reverse order using negative indexing ?

 # Creating a List mylist = ["Jacob", "Harry", "Mark", "Anthony"] # Displaying the List print("List = ",mylist) # Iterate in reverse order using negative indexing print("Display the List in Reverse order = ") [print (i) for i in mylist[::-1]] 
 
 
 

Output

List = ['Jacob', 'Harry', 'Mark', 'Anthony'] Display the List in Reverse order = Anthony Mark Harry Jacob