more_oop_exercise_solutions.py

# Exercise 1 Solution

class Square:
    square_list = []

    def __init__(self):
        self.square_list.append(self)
        
# Exercise 2 Solution

class Square:
    def __init__(self, s1):
        self.s1 = s1
        
    def calculate_perimeter(self):
        return self.s1 * 4

    def __repr__(self):
        return "{} by {} by {} by {}".format(self.s1, self.s1, self.s1, self.s1)

# Exercise 3 Solution

def same(obj1, obj2):
    return obj1 is obj2
    

class Square:
    def __init__(self):
        pass

def are_same_object(obj1, obj2):
return obj1 is obj2

obj_a = [1, 2, 3]
obj_b = [1, 2, 3]
obj_c = obj_a

print(are_same_object(obj_a, obj_b)) # Output: False
print(are_same_object(obj_a, obj_c)) # Output: True