the first picture is the question from my study guide and the second is the answer ny professor gave us. I tried it but it's still not working for me, is there another way to get the same answer?

4 (5 pts). Method in Python Write a method named getFirstietter. It takes a string and returns the first letter of the string. If the string has no character it returns None type. Here are some examples getFirstLetter ('Paul')-> returns P' getfirstLetter (* cSEBA') --> returns (Note that there is a space before CSE8A in the argument. The function returns a space getFirstLetter(") --> returns None type (empty string, returns None type) def getFirstLetter(word): if len(word) == 0: return None #or simply return return word[0]