C1M1 Assignment - Exercise 2 - Failed test

When I run the test for Exercise 2 it says that there’s an “Incorrect value for available_copies”, however below it says the grader expected 3 and that I got 3. The output is exactly as expected, but I keep failing the test.

Any ideas?

Perhaps the grader uses a different test.

It would help if you post a screen capture image of the error message or grader feedback.

Here's the screenshot. I hope it helps

Thanks for the image.

Note: That output is not from the ‘grader’, it’s from the in-notebook test cases.

Hopefully a mentor for that course will stop by shortly. Since it’s on Coursera and I’m not a mentor for that course, I don’t have access to do any investigation on the issue.

Ok got it, thanks so much!