W2_A2_Problem with built-in code

assignment 2
All the test cases passed successfully, but these already-written codes are giving errors.

Please give the course number (C1 through C5, or the specific course name), also the week number and assignment number.

Sorry and Thank you.

That code may be given to you, but it depends on the value num_px which is generated earlier. Perhaps that is not correct. Try printing the type and value of num_px.

Thank you.