Do not share any part of the codes from grader cells. It is against community guidelines.
Share only screenshot of your submission grader. also you can click on the show grader output in the submission page to know why you failed the exercise.
Regards
DP
based on your code and error output, you are not suppose to hard code the path, probably that is why you have failed.
in the code share
- You can use np.square to get the square of a value.
based on this assignment first recall the square of a value separately and then apply it to the dof.
Please remove all the images where you have includes codes from the grader cells from this post and the other post.
Regards
DP