Week 2 Programming Assignment Logistic Regression with a Neural Network Mindset

@sagetea: The import cell does not require you to change anything: it should “just work”. Please show us the actual error you are getting. My first suggestion is to do “Kernel → Restart and Clear Output” and then run that cell again.

Update: I just checked and that cell is modifiable. So another possibility is that you accidentally modified it in a damaging way. E.g. hit “Enter” instead of “Shift-Enter” while your cursor was in that cell. There is a topic on the FAQ Thread about how to get a clean copy of the notebook to recover it if damage to the cell is a possibility.