the longest palindromic
Why is this code not working for some test cases?
def longest_palindromic(text): letter = 0 lenght= 0 long_pal = text[0] while letter < len(text): current_string = text[letter:(lenght + 1)] if current_string == current_string[::-1] and len(current_string) > len(long_pal): long_pal = current_string if lenght + 1 <= len(text[letter:]): lenght += 1 else: letter += 1 return long_pal