Move the first letter of each word to the end of it, then add "ay" to the end of the word. Leave punctuation marks untouched.
Examples
pig_it('Pig latin is cool') # igPay atinlay siay oolcay
pig_it('Hello world !') # elloHay orldway !
def pig_it(text):
pass
def pig_it(text):
return " ".join(["{}{}ay".format(c[1:], c[0]) if c.isalpha() else c for c in text.split()])