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

i don't feel like they are complaining, but even if so, it's warranted. these are the instructions for exercise 3:

Write a function that takes two objects as parameters and returns True if they are the same object, and False if not

it will not pass unless you name the function 'same'

class Person():
    def __init__(self):
        pass

def check_if_same(obj1, obj2):
    if obj1 is obj2:
        return obj1 is obj2
    else:
        return obj1 is obj2
    
p1 = Person()
same_p = p1

p2 = Person()
another_p = p2


print(check_if_same(p1, same_p))
print(check_if_same(same_p, another_p))

Output:

True
False

The Udemy course will not evaluate this exercise, but hopefully this helps someone else understand the problem.

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