Data Type error while submitting course 1 week2 assignment

While the test cases pass when its run , on submitting i get such an issue for all the solutions?

Failed test case: Determinant d has incorrect type…
<class ‘float’>,
but got:
<class ‘NoneType’>.

I am also experiencing the same problem

Hello @ppm28 and @Sdumo_LuckySibiya!

Please be sure that you do not add any function in the solution code blocks apart from the solution itself and the functions that are already in the block. It may break the autograder.

If this is not the case, let me know.

I requested a new notebook and then I only edite the “none” and now it is giving me zero . even the answers that I got correct at first .

Hi @Sdumo_LuckySibiya,

Can you share your lab ID with me ? In the assignment, when you click the top right “Help” button, a panel will open and your lab ID will be shown at the bottom.

I shall take a look.


Hi Lucas -
I’m having the same problem. There’s nothing in the cell but calls to np.linalg.det and np.linalg.solve. I’ll message you my lab id.