by divinenephron » Sat Sep 01, 2012 4:02 pm
Short answer: Give the fully qualified path to your bot (e.g. /home/user/aichallenge/my-bot/MyBot) rather than a relative path (e.g. my-bot/MyBot) and it should work.
Background: I encountered the same problem, and after some poking discovered the SandboxError was being triggered by a "no such file" error. This is because the subprocess.Popen function used to run the bots doesn't look in the working directory for executables.