Introduction
Quick recap
Indexing and slicing
Instruction
Great! If you use a negative index as the step, you can actually reverse a string! Take a look:
alphabet = 'abcdefghijklmnopqrstuvwyxz' alphabet[::-1]
The code alphabet[::-1] means "take all characters (with no lower or upper bound) and go back one index at a time." As a result, we'll get a reversed string!
Exercise
Ask the user to provide a palindrome, a word that reads the same backwards and forwards: Write a palindrome:
If the input is an actual palindrome, write: Correct palindrome. Otherwise write: Not a palindrome.
Stuck? Here's a hint!
To check if the user entered a palindrome, use == palindrome[::-1].
