Issues with OOP

[edoardob90]

• We should probably change "class attributes" to "instance attributes" in the error message of the __str__ and __repr__ exercise:

python-tutorial/tutorial/tests/test_05_object_oriented_programming.py

Lines 148 to 163 in 09b391d

	def validate_oop_str_method(solution_result):
	assert hasattr(solution_result.__str__, "__closure__"), (
	"Make sure that the class is properly implementing the __str__() method."
	)
	assert solution_result.__str__.__closure__ is None, (
	"The __str__() method should be using the class attributes."
	)
	def validate_oop_repr_method(solution_result):
	assert hasattr(solution_result.__repr__, "__closure__"), (
	"Make sure that the class is properly implementing the __repr__() method."
	)
	assert solution_result.__repr__.__closure__ is None, (
	"The __repr__() method should be using the class attributes."
	)