C3W2 exercise 11

I got stuck with exercise 11 even though I guessed it right. Can you give me any hint?

It would help if you state the problem here, for those of us who aren’t taking the course, :slight_smile:

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Hi @willtse

Can you be more specific what the problem is?

Hello @willtse
Could you post the error trace what you got? It will help others to clarify your doubts