palindrome.py

# Palindrome 0(n) with efficient use of memory

def isPalindrome(string):
    if string == "":
        return None

    for index in range(len(string)):
        if string[index] != string[(len(string) - 1) - (index)]:
            return False
    
    return True

example = ""

if isPalindrome(example) == True:
    print(f"Yes, {example} is a palindrome")
elif isPalindrome(example) == False:
    print(f"No, {example} is not a palindrome")
else:
    print(f"Not a word")