Write a python program that include the following:

A class called Book.

This class will have the following private attributes

title: string

ISBN: string but all numbers

author: string

price: floating point

You need to write all the needed methods for this class including at least the following methods

$\_\_$init$\_\_$

$\_\_$str$\_\_$

set$/$get for all attributes

A function called create$\_$book that will:

Accept no parameters

Ask the user for all the information needed to populate the information needed for a book

Validate that inputs are correct. For example, the price is not negative and the ISBN contains nothing but numbers

Return an object of type Book to the calling function

A function called create$\_$list$\_$books that will:

Accept no parameters

Ask the user if he wants to add a new book

Call $$create$\_$book$$ function to add a new book

Add the newly created book to a list of books

Return the list of books to caller function

A function called find$\_$book$\_$price that will:

Accept the list of books

Ask the user to enter the price

Search the list of books for all books that has a price less than the given price

Print the full information for these books with a price below the price the user entered

A function called find$\_$book$\_$ISBN that will:

Accept the list of books

Ask user to enter the ISBN for the book

Search the list of books for that particular ISBN

Produce the appropriate message if the book is not found

Print the information for that book if it is found

A main function that will:

Call the create$\_$list$\_$books function to populate the list of books

List a menu for the user that contains the following options

Search by price

Search by ISBN

Exit

Based on the option selected, you should call the appropriate function and continue displaying the menu till the user chooses to exit