While I might not agree with the GP that this should be an automatic failure, I do think it is very important to emphasize to students that when the code is wor

While I might not agree with the GP that this should be an automatic failure, I do think it is very important to emphasize to students that when the code is working, they are not done. They still need to go back, re-format, clean things up, and possibly add tests. Working is the lowest bar of quality.