Can't finish the assignment

I have done and finish all of solution, what’s wrong with me, can some body help me?

Hi @Dung_Dung,

This usually happens when you are using global variables inside the functions when you should have been using function parameters instead. Another possibility is that you might have introduced print statements in your code.

Check for these and let me know.


Dear @Mubsi,
Thanks for your help but I still cannot run the test case, I have already checked both function parameters, and no print statement in my code. What’s should I do now?

I’ll send you a DM.


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Hi @Dung_Dung,

At the start of the assignment there’s a note on the autograder:

Important Note on Submission to the AutoGrader

Before submitting your assignment to the AutoGrader, please make sure you are not doing the following:

  1. You have not added any extra print statement(s) in the assignment.
  2. You have not added any extra code cell(s) in the assignment.
  3. You have not changed any of the function parameters.
  4. You are not using any global variables inside your graded exercises. Unless specifically instructed to do so, please refrain from it and use the local variables instead.
  5. You are not changing the assignment code where it is not required, like creating extra variables.

If you do any of the following, you will get something like, Grader not found (or similarly unexpected) error upon submitting your assignment. Before asking for help/debugging the errors in your assignment, check for these first. If this is the case, and you don’t remember the changes you have made, you can get a fresh copy of the assignment by following these instructions.

Which clearly specifies what are the things to make sure of before submitting.

I did nothing, but got a fresh copy of the notebook, copy/pasted your solutions in the newer version, submitted it, and it got graded fully. You probably had done (1), (2), (3) and/or (5). Next time, before submitting your assignment, check for these violations of the AutoGrader.

The notebook that you now have in your workspace is the newer version. Your old version has the name old_C1_W1_Assignment.ipynb. You should be able to submit and get full grade on the newer version.

Happy learning,

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hello Mubsi can you please help me with the assignment


Sure! How can I help you ?

I don’t know how to solve the assessment


Please be specific when asking for help. This is a very general statement, that you don’t know how to solve the assessment. I can’t help you much with this statement, now can I ? Because I don’t know what issue you are facing.

The assignments have enough information in them if you read the description, you’d be able to find the answers, and also, the ungraded labs are also helpful to go through before attempting the assignments.

The best way to get help is to ask a really specific question. As in, I tried to implement this function (name the function in the exercise) and the test fails and throws an exception or I got a syntax error and here is the error output I am getting. It’s fine to “copy/paste” in a full exception trace or the output of one of the test cells. Just note that we’re not supposed to publish and share our solutions, even if they aren’t complete yet. If the mentors can’t figure out how to give advice without actually seeing your code, we will contact you privately by DM so that we can make progress while still obeying the “no public sharing of solutions” rules.


i passed when i do the run test on the assignment but i didn’t take my grades what can i do ???


At the start of the assignment, there’s a note Important Note on the Autograder, please make sure you are not doing any of those listed things. You are probably using global variables in your assignment.

Let me know if this still keeps on happening even after you check for those listed things.


Hi can you please show me why my gread does not be pass ? Everything is good I checked
And thanks for helping me

Hi Mubsi
I have questions about the assignment. Am I just supposed to run all the cells and submit the assignment without doing any work?


Hi @Hellen_Momoh,

No, there are graded functions which you have to implement before submission. Otherwise you grade will be 0.

Hi Mubsi, thank you.
I will try again