Question

Write a definition for a class named Book with attributes title, price and author, where author is a Contact object and title is a String, and price is a float number.

You also need to define the Contact class, which has attributes name and email, where name and email are both String.

Instantiate a couple of Book objects that represents books with title, price and author (You can come up with the attributes values for each object)

Write a function named print_book that takes an object of Book and prints out the value of its attributes. (Make the message friendly to read, for example "Book title: [sometitle]", "Book price: [$33.75]", etc

Write a function named which_is_more_expensive that takes two Book objects as parameters and returns the reference of the Book object with higher price

Write a function named which_is_more_expensive_by_copy  that takes two Book objects as parameters and returns a copy of the Book object with higher price

Write a function named calculate_total_price that takes two Book objects as parameters and returns the total price of the two books

Make functions calls of all these functions by passing the Book objects you created.

[Check point] Submit your python code as .py file in text format, and capture the screens of your program running showing the input and output.

Answer 1

class Book:
def __init__(self,title,price,a1):
self.title=title
self.price=price
self.name=a1.name
self.email=a1.email
class Author:
def __init__(self,name,email):
self.name=name
self.email=email
array_book=[]
a1=Author("Robert","name1@etc.com")
b1=Book("book1",10.0,a1)
#appending objects to an array
array_book.append(b1)
a2=Author("Rahim","name2@etc.com")
b2=Book("book2",20.0,a2)
array_book.append(b2)
a3=Author("Ramu","name3@etc.com")
b3=Book("book3",30.0,a3)
array_book.append(b3)
#searching an existing book
def print_book(search):
count=0
for i in array_book:
if(i==search):
count=1
print("Title is::"+i.title,"\nPrice is::",i.price,"\nAuthor Name is::",i.name,"\nAuthor Name email is::",i.email)
if(count==0):
print("Book Not Available")
#finding more expensive book
def which_is_more_expensive(item1,item2):
count=0
for i in array_book:
if(i==item1):
count+=1
item1=i
price1=i.price
if(i==item2):
count+=1
item2=i
price2=i.price
if(count==2):
if(price1>price2):
return item1
else:
return item2
else:
print("Book mentioned is/are not Available")
#calculating the cost of two existing books
def calculate_total_price(item1,item2):
count=0
price=0
for i in array_book:
if(i==item1):
count+=1
price+=i.price
if(i==item2):
count+=1
price+=i.price
if(count==2):
return price
else:
print("Book mentioned is/are not Available")

print_book(b1)
check=which_is_more_expensive(b2,b3)
#checking the returned object
print("\n",check.name,"'s book is more expensive\n")
value=calculate_total_price(b1,b2)
#checking the returned value
print("Cost of two books is",value)

#sample input and output
print book (b1) check-which is more expensive(b2,b3) #checking the returned object print("In", check.name, " s book is more expensiveln") value-calculate total price (b1,b2) #checking the returned value print("Cost of two books is",value)

Title is:: book1 Price is: 10.e Author Name email is:: name1@etc.com Ramu 's book is more expensive Cost of two books is 30.e 15