Day 87: Python Program to Check if a Given String is Palindrome

 def is_palindrome(s):

    s = s.replace(" ", "").lower()

        return s == s[::-1]

input_string = input("Enter a string: ")

if is_palindrome(input_string):

    print(f'"{input_string}" is a palindrome.')

else:

    print(f'"{input_string}" is not a palindrome.')

#source code --> clcoding.com 

Code Explanation:

def is_palindrome(s):

This line defines a function called is_palindrome that takes one argument, s.

The argument s is expected to be the string that we want to check if it is a palindrome.

    s = s.replace(" ", "").lower()

This line modifies the input string s to prepare it for the palindrome check:

s.replace(" ", ""):

Removes all spaces from the string.

.lower():

Converts all characters in the string to lowercase.

These transformations ensure the check ignores spaces and capitalization, making it case-insensitive.

    return s == s[::-1]

This line checks if the modified string is the same as its reverse:

s[::-1]:

This is Python slicing syntax that creates a reversed version of the string.

s == s[::-1]:

Compares the string s with its reversed version.

If they are the same, it means the string is a palindrome, and the function returns True. Otherwise, it returns False.

input_string = input("Enter a string: ")

This line asks the user to enter a string and stores the input in the variable input_string.

The input() function allows the user to type a string when the program runs.

if is_palindrome(input_string):

This calls the is_palindrome function, passing the user's input (input_string) as the argument.

If the function returns True (indicating the string is a palindrome), the if block will execute.

If it returns False, the else block will execute.

    print(f'"{input_string}" is a palindrome.')

If the function determines that the string is a palindrome, this line prints a message confirming that.

The f before the string allows you to include variables inside curly braces {} in the printed message.

else:

    print(f'"{input_string}" is not a palindrome.')

If the function determines that the string is not a palindrome, this line prints a message saying so.