@Wei2017 wrote: Thank you for your code and exmplanation. The code is so awesome. I impleneted in my jupyter notebook, why some part is still missing like SchoolCode for Eric?     Thank you.     Most likely the line with the SCHOOL on it is formatted slightly differently or does not exist for that block of lines. Watch out for changes in case, extra spaces, or things like tabs and other characters that look like spaces but aren't. ... View more