Tutorial Gateway

Python Program to Reverse String

by

In this article, we will show you, How to write a Python program to Reverse String using For Loop, while loop, and Functions with example.

TIP: Please refer String article to understand everything about Strings.

Python Program to Reverse String using For Loop

This python program allows the user to enter a string. Next, it will reverse the string using For Loop.

# Python Program to Reverse String
string = input("Please enter your own String : ")

string2 = ''

for i in string:
    string2 = i + string2
    
print("\nThe Original String = ", string)
print("The Reversed String = ", string2)

OUTPUT

Python Program to Reverse String 1

From the above screenshot you can observe that,
string = Python

For Loop First Iteration: for i in string
=> for P in Python
string2 = P + string=> P + ”

Second Iteration: for y in Python
string2 = y + P => yP

Do the same for the remaining iterations

Python Program to Reverse String using While Loop

This python string reverse program is same as above. However, we just replaced the For Loop with While Loop. Here, len is a string function used to find string length.

# Python Program to Reverse String
string = input("Please enter your own String : ")

string2 = ''
i = len(string) - 1

while(i >= 0):
    string2 = string2 + string[i]
    i = i - 1
    
print("\nThe Original String = ", string)
print("The Reversed String = ", string2))
print("The Given String in Lowercase =  ", string1)

OUTPUT

Python Program to Reverse String 2

Python Program to Reverse String using Recursion

In this program we are doing string reverse by calling the function recursively.

# Python Program to Reverse String

def StringReverse(str1):
    if(len(str1) == 0):
        return str1
    else:
        return StringReverse(str1[1:]) + str1[0]

string = input("Please enter your own String : ")

string2 = StringReverse(string)
print("\nThe Original String = ", string)
print("The Reversed String = ", string2)

OUTPUT

Python Program to Reverse String 3

Python String Reverse program using Function

This is another way of reversing string

# Python Program to Reverse String

def StringReverse(str1):
    str2 = str1[::-1]
    return str2

string = input("Please enter your own String : ")

string2 = StringReverse(string)
print("\nThe Original String = ", string)
print("The Reversed String = ", string2)

OUTPUT

Python Program to Reverse String 4