How to get more helpful error messages when comparing two instances?

I'm comparing two class instances with each other. Below is my sample test code:

from unittest import TestCase

class Dog:
    age: int
    name: str

    def __eq__(self, other):
        if not isinstance(other, Dog):
            return False

        return self.age == other.age and self.name == other.name


class MyTests(TestCase):
    def test_compare(self):    
    d1 = Dog()
    d1.age = 1
    d1.name = 'dog1'

    d2 = Dog()
    d2.age = 2
    d2.name = 'dog2'

    self.assertEqual(d1, d2)

This generates an assertion error:

AssertionError: <test.Dog object at 0x0000020444FCA520> != <test.Dog object at 0x0000020444F97D60>

Is there a way to compare two instances directly and get a more helpful error message, such as the field that caused the assertion to fail? The only way I've found is to compare fields directly like below. Is there a less tedious way?

self.assertEqual(d1.age, d2.age)
self.assertEqual(d1.name, d2.name)

You can define a __repr__ method in the class. This is used to create string representations of objects for debugging purposes.

class Dog:
    age: int
    name: str

    def __init__(self, age, name):
        self.age = age
        self.name = name

    def __eq__(self, other):
        if not isinstance(other, Dog):
            return False

        return self.age == other.age and self.name == other.name

    def __repr__(self):
        return f"{self.__class__.__name__}({repr(self.age)}, {repr(self.name)})"

print(Dog(5, "Fido"))  # Prints "Dog(5, 'Fido')"