# run linked lists from SList import SList from SLNode import SLNode sll = SList() sll.head = SLNode('Alice') sll.head.next = SLNode('Bob') sll.head.next.next = SLNode('Person') sll.print_all_vals() sll.insert_after('Bob', 'Stacy') sll.delete('Bob') sll.print_all_vals() sll.delete('Stacy') sll.print_all_vals() sll.prepend('The First!').prepend("the most first") sll.print_all_vals() sll.append('The Last!').append('The Most Last!') sll.print_all_vals()