Exercise 5.10 Comparing apartments

In the estate agent's information system, an apartment that is on sale is represented by an object that is instantiated from the following class:

class Apartment:

    def __init__(self, rooms, squares, price_per_square):
        self.rooms = rooms
        self.square = squares
        self.price_per_square = price_per_square

Your task is to create a few methods that can be used to compare apartments that are being sold.

Comparing sizes

Create a method larger_than(self, other) that returns true if the apartment object whose method is called has a larger total area than the apartment object that is being compared.

An example of how the method should work:

manhattan_studio_apt = Apartment(1, 16, 5500)
atlanta_two_bedroom_apt = Apartment(2, 38, 4200)
bangor_three_bedroom_apt = Apartment(3, 78, 2500)

print(manhattan_studio_apt.larger_than(atlanta_two_bedroom_apt)) # false
print(bangor_three_bedroom_apt.larger_than(atlanta_two_bedroom_apt)) # true

Price difference

Create a method price_difference(self, other) that returns the price difference of the apartment object whose method was called and the apartment object received as the parameter. The price difference is the absolute value of the difference of the prices (price can be calculated by multiplying the price per square by the number of squares).

An example of how the method should work:

manhattan_studio_apt = Apartment(1, 16, 5500)
atlanta_two_bedroom_apt = Apartment(2, 38, 4200)
bangor_three_bedroom_apt = Apartment(3, 78, 2500)

print(manhattan_studio_apt.price_difference(atlanta_two_bedroom_apt))  # 71600
print(bangor_three_bedroom_apt.price_difference(atlanta_two_bedroom_apt))   # 35400

More expensive?

Write a method more_expensive_than(self,other) that returns true if the apartment object whose method is called is more expensive than the apartment object being compared.

An example of how the method should work:

manhattan_studio_apt = Apartment(1, 16, 5500)
atlanta_two_bedroom_apt = Apartment(2, 38, 4200)
bangor_three_bedroom_apt = Apartment(3, 78, 2500)

print(manhattan_studio_apt.more_expensive_than(atlanta_two_bedroom_apt))  # true
print(bangor_three_bedroom_apt.more_expensive_than(atlanta_two_bedroom_apt))   # false