This program is built on the Object Oriented Programming concept of Aggregation, where you build

complex objects comprised of other objects.

You will code $3$ classes. The Student class, which uses the Library which consists of Books. There is not

any inheritance in this project.

The Book class.

$$ Attributes in $\_\_$init$\_\_$: title, isbn, author. Make these attributes non$-$public.

$$ Use @property to make all of these read$-$only attributes. $($No setter methods $$ these attributes

cannot be modified.

$$ Method: displayBook. This method should consist of a print statement that prints the title, author

and isbn of the book. $($see Example$)$

The Library class.

$$ Attributes in $\_\_$init$\_\_$: Takes an argument list$\_$of$\_$books. This is assigned to an attribute:

available$\_$books. Another attribute called list$\_$of$\_$borrowed$\_$books is initialized to an empty list.

$$ Method $1$: displayAvailableBooks. No arguments. This method will process the list of available

books and print all the books in the list using the method in the Book class.

$$ Method $2$: lendBook. Argument: requested$\_$book$\_$title. This method will check to see if the

requested$\_$book$\_$title is in the available$\_$books. If so$,$ then it will let you know you can borrow it and

then remove the book from the available$\_$books and place it in the borrowed$\_$books.

$$ Method $3$: addBook. Argument: returned$\_$book$\_$title. This method will check to see if the

returned$\_$book$\_$title is in the list of borrowed books. If so$,$ then it will add that book to the available

books list and remove it from the borrowed books.

$$ NOTE: For methods $2$ and $3,$ you will need to use a loop to process the list. Include logic that will

alert the user if no action was taken.

The Student class.

$$ Attributes: for simplicity, this class does NOT have an $\_\_$init$\_\_$ method, nor does it have any

attributes. Instead, it consists of two methods.

$$ Method $1$: requestBook. No arguments. The method asks the user to enter the title of the book

they would like to borrow and returns this title.

$$ Method $2$: returnBook. No arguments. The method asks the user to enter the title of the book they

are returning and returns this title.

In the main$()$:

$$ Create $4$ different book instances.

$$ Create a library instance and sent it a list of the books.

$$ Create a student instance.

$$ The following action exists inside of a while loop.

o Display a menu with $4$ choices: Display the list of books, Request a book, Return a book,

Exit

o The user then enters their choice as an integer.

o Then in an if$...$elif... structure, depending upon the choice, fulfill the student$$s request.

Different choices will require you to use methods in the Student class or in the Library

class, or both... make sure to make comments to understand easily