def main(): p1 = Patron("Jeff") p2 = Patron("Jill") b1 = Book("Atonement", "McEwan") b2 = Book("The March", "Doctorow") b3 = Book("Beach Music", "Conroy") b4 = Book("Thirteenth Moon", "Frazier") print(p1) print(p2) print(b1) b1.borrowMe(p1) b2.borrowMe(p1) b3.borrowMe(p1) b1.borrowMe(p2) print(b1) print(b1.returnMe()) b4.borrowMe(p1) b4.borrowMe(p1) print(p1) print(p2) print(b1) print(b2) print(b3) print(b4)