The code does not work and returns:

AttributeError Traceback $($most recent call last$)$

in $()$

$1$ # Tests $5$ points.

$2$

$---->3$ assert i $!=$ j

$4$ assert Interval$(5,7)==$ Interval$(5,7)$

in interval$\_$equality$($self$,$ other$)$

$2$

$3$ def interval$\_$equality$($self$,$ other$)$:

$---->4$ if self.x$1==$ other.x$1$ and self.x$2==$ other.x$2$:

$5$ return True

$6$ else:

AttributeError: 'Interval' object has no attribute $\text{'}$x$2\text{'}$