Working with python3

[jiravatt]

I want to use this judge in my programming class which use python3 as a main language. So I tried to modify the compile and run script to use /usr/bin/python3 but it failed. a.out run smoothly (via terminal) but it didn't produce any output to output.txt. Here are some modification I'd tried out:

• I've changed /usr/bin/python to /usr/bin/python3 in both compile and run scripts
• As in python3, .pyc file is created in __pycache__ folder so I add some cp command in compile script to copy it to same level as a.out with a new name <source>.pyc (instead of <source>.cpython-xx.pyc).

So I want some advices or suggestions from dev team on how should I do to make cafe grader supports python3. Thanks in advance!

[jiravatt]

In addition, when I checked result file in each judge/result/{user}/{prob_name}/{submission_id}/test_results/{test_no} folder, it was written Forbidden access to file 'dev/urandom' and output.txt is empty. Also a judgement of all cases is marked as x.

[jittat]

Sorry for a fairly late reply. I think that the problem is with the sandbox. It prevents the python interpreter from accessing some system files. I'll look into that to find some fix.