At the top of your script, put the following multi-line comment with your information:
'''
Your name as registered, with optional nickname in parentheses
CIS 41A Fall 2021
Unit I, Problem I
'''
We will be building a suite of three classes to manage library patrons and
the books that they check out (a library patron is someone who has a library account).
All three classes and the code to test the classes will be contained within a single script.
The library has two types of patrons, adult and juvenile, and two types of books, adult and juvenile. Juvenile patrons can only check out juvenile books, while adult patrons can check out any type of book. Additionally, juvenile patrons have a limit of 2 books that they may have checked out at one time, while adult patrons have a limit of 4 books that they may have checked out at one time.
We will write three classes: a parent LibraryPatron class, and AdultPatron and JuvenilePatron child classes. Ideally, we would also have a Book class, but we will simplify things here by making a book be a list with two elements: the title, and the book type - adult or juvenile (see the testing code below).
The LibraryPatron class has the following four methods: __init__, checkOutBook, returnBook, and printCheckedOutBooks.
The __init__ method should have the parameters self and name, and should store the name as an attribute (name is the name of the patron). There should also be an additional attribute called booksCheckedOut which should be initialized as an empty list. This attribute will store a list of the book titles that the patron currently has checked out.
The checkOutBook method should have the parameters self, checkOutLimit and bookTitle. If the patron is at their checkout limit, print a "Sorry" message to the patron. Otherwise, append the bookTitle to the patron's booksCheckedOut list and print a "Checkout" message, as shown below.
The returnBook method should have the parameters self and book. Here, book is a book list object - you will need to extract the book title from the list. Remove the book title from the patron's list of checked out book titles and print a "returned" message.
The printCheckedOutBooks method should have the parameter self. Print a message along and print all the patron's checked out book titles, as shown below.
The AdultPatron class inherits from the LibraryPatron class and has the following two methods: __init__, checkOutBook.
The __init__ method should have the parameters self and name. Call LibraryPatron's __init__ to store the name. There should also be an additional attribute called checkOutLimit which should be initialized with a value of 4.
The checkOutBook method should have the parameters self and book. Here again, book is a book list object. Call LibraryPatron's checkOutBook method, using the patron's checkOutLimit and the book title as arguments.
The JuvenilePatron class inherits from the LibraryPatron class and has the following two methods: __init__, checkOutBook.
The __init__ method should have the parameters self and name. Call LibraryPatron's __init__ to store the name. There should also be an additional attribute called checkOutLimit which should be initialized with a value of 2.
The checkOutBook method should have the parameters self and book. Here again, book is a book list object. If the book is not a a juvenile book, print a "Sorry" message as shown below. Otherwise, call LibraryPatron's checkOutBook method, using the patron's checkOutLimit and the book title as arguments.
Test with the following code:
book1 = ["Alice in Wonderland", "Juvenile"]
book2 = ["The Cat in the Hat", "Juvenile"]
book3 = ["Harry Potter and the Sorcerer's Stone", "Juvenile"]
book4 = ["The Hobbit", "Juvenile"]
book5 = ["The Da Vinci Code", "Adult"]
book6 = ["The Girl with the Dragon Tattoo", "Adult"]
patron1 = JuvenilePatron("Jimmy")
patron2 = AdultPatron("Sophia")
patron1.checkOutBook(book6)
patron1.checkOutBook(book1)
patron1.checkOutBook(book2)
patron1.printCheckedOutBooks()
patron1.checkOutBook(book3)
patron1.returnBook(book1)
patron1.checkOutBook(book3)
patron1.printCheckedOutBooks()
patron2.checkOutBook(book5)
patron2.checkOutBook(book4)
patron2.printCheckedOutBooks()
Sample Execution Results:
Sorry Jimmy The Girl with the Dragon Tattoo is an adult book Jimmy has checked out Alice in Wonderland Jimmy has checked out The Cat in the Hat Jimmy has the following books checked out: Alice in Wonderland The Cat in the Hat Sorry Jimmy you are at your limit of 2 books Jimmy has returned Alice in Wonderland Jimmy has checked out Harry Potter and the Sorcerer's Stone Jimmy has the following books checked out: The Cat in the Hat Harry Potter and the Sorcerer's Stone Sophia has checked out The Da Vinci Code Sophia has checked out The Hobbit Sophia has the following books checked out: The Da Vinci Code The Hobbit
Add the following at the end of the script to show your results:
'''
Execution results:
paste execution results here
'''
Submit your finished py script in Canvas, Problem I.