Python Program to Check a Number or String is Palindrome

In this tutorial, we are going to see how to write a palindrome program in Python using recursion. A number is a palindrome if it is written in the same way after its inversion.
 
Example:

232, 191, 22022, 111, 666, 12012

The program’s logic

• Get the number/string to check
• Keep the number/string in a temporary variable
• Reverse the number/string
• Compare temporary number/string with the reversed number/string
• If the two numbers/strings are the same, display “xxxx is a palindrome”
• Otherwise, print “xxxx is not a palindrome”

 

Python Program to Check a Number or String is Palindrome

var = input(("Enter a value: "))
if(var == var[::-1]):
    print("The input is a palindrome")
else:
    print("The input is not a palindrome")

Output:

Enter a value: 232
The input is a palindrome

 

Python Program to Check a Number or String is Palindrome Using Function

def check_palindrome(v): 
    reverse = v[::-1]  
  
    if (v == reverse): 
        return True
    return False
  
  
var = input(("Enter a value: "))
if(check_palindrome(var)):
    print("The input is a palindrome")
else:
    print("The input is not a palindrome")

Output:

Enter a value: 232
The input is a palindrome

 

Palindrome Program In Python Using Recursion Function

def check_palindrome(v):
    if len(v) < 1:
        return True
    else:
        if v[0] == v[-1]:
            return check_palindrome(v[1:-1])
        else:
            return False

var = input(("Enter a value: "))
if(check_palindrome(var)):
    print("The input is a palindrome")
else:
    print("The input is not a palindrome")

Output:

Enter a value: 232
The input is a palindrome

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