The feedback is empty if the student shuts down the process with os._exit(0)

[markkuriekkinen]

If the student's submission calls os._exit(0), the final feedback in A+ is completely empty. I assume that the python-grader-utils process shuts down and is not able to produce any output in the end.

Is the remote grader prototype able to fix this problem? If the grader main process and the submission process are separated, then the student can not shut down the main process.
https://github.com/apluslms/python-grader-utils/tree/remotegrader

[ihalaij1]

I got the remotegrader working with our recent updates to graderutils.
When using the remotegrader, os._exit(0) results in an EOFError when the rpyc connection is lost, but it does not shut down the main process.

os._exit() could probably be overridden in the student process so that it raises an exception stating that the command should not be used. Is this too hacky?

I think overriding could also work in the current non-rpyc graderutils.

[markkuriekkinen]

I don't think this is urgent. We can now leave this waiting for the remote grader. We will then get a better overview of this whole thing.

If you are already finished with the remote grader, then I can take a look at that in May.