Develop a Python program. Define a class in Python and use it to create an objec

Question

Develop a Python program. Define a class in Python and use it to create an object and display its components. Define a Book class where a book contains the following components (attributes): an author, a title, and number of pages. PLEASE DO NOT HARD CODE ANY CONSTANT VALUE IN THE SOURCE CODE: THIS MUST BE DONE WITH USER INPUT.

This class includes several methods: to change the values of these attributes, and to display their values. Separately, the “main program” must:

request the corresponding data from input and create a book object.

invoke a method to change the value of one of its attributes

invoke a method that displays the value of each attribute.

I've provided the code I have so far. I am stuck on the changing attribute method as I was trying to use validation to confirm if they wanted to change the title, author, or page numbers but don't know how to proceed.

-Book Book.py * ÷ ! *.- Book.py x Book ~/Py 1 Book.py 2 IlI External Lib3 class Book: #Book class def-init--(self): #Method creating the Book object with it's attributes self.title = "" self.author self.pages ". def get Information (self): #Method to display the value of each attribute info-"%s , by As has As pages." % (self.title, self·author, self.pages) return info def main(): book-1 = Book() #Main method requesting data from input book 1.title-raw input("What is the title of your book? ") book_ 1.author raw_input("Who is the author?") book_1.pages = raw..input ("How many pages are in your book? ") print book-1.getInformation() #Invoking method to display attributes 14 if -name-- "--main--": =: 17 main) 19 # def changeAttribute(): #method to change attributes #print ("Would you like to change an attribute? Answer True while Answer =wrcus ans input ("") =

Explanation / Answer

Screenshot

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Code:-

#class declaration
class Book:
    #costructor attribute initialization
    def __init__(self,title="",author="",pages=""):
      self.title =title
      self.author =author
      self.pages =pages
      #get information function to display attribute values
    def getInformation(self):
        info="%s, by %s has %s pages ."%(self.title,self.author,self.pages)
        return info
#main method
#def main():
#object of book class
b1=Book()
#prompt user for each attribute values
b1.title=input("What is the title of the book ? ")
b1.author=input("What is author's name of the book ? ")
b1.pages=input("How many pages in the book ? ")
#display information
print (b1.getInformation())
#ask user if they want to chane attribute
answer=input("Would you like to change attribute ? ")
if answer=="yes":
    #change each attribute
    val=input("which attribute do you want to change ? ")
    if val=="title":
        t=input("Change the title ? ")
        setattr(b1,val,t)
        print (b1.getInformation())
    elif val=="author":
        t=input("Change the author name ? ")
        setattr(b1,val,t)
        print (b1.getInformation())
    elif val=="title":
        t=input("Change the attribute ? ")
        setattr(b1,val,t)
        print (b1.getInformation())
    #if __name__=="__main__":
           # main()

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Note:-

I am using visual studio python programming,so small changes in format

If you have any further change or doubt please let me know

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