running sys.exit on an engine results in an error trying to handle SystemExit

[Vishal Vatsa]

To replicate, start an cluster and do:

from IPython.kernel import client
tc = client.get_task_client()
code = "import sys; sys.exit(0)"
task = client.StringTask(code)
id = tc.run(task)
r = tc.get_task_result(id)
r.failure.getTraceback()
"Traceback (most recent call last):\nFailure: exceptions.AttributeError: 'Interpreter' object has no attribute 'resetbuffer'\n"

I know, should not be doing sys.exit, but if you do this error is really hard to diagnose the actual problem.
Would the attached patch more sense?

Since the Interpreter obj. indeed does not have a resetbuffer() method.

[Fernando Perez (fdo.perez)]

Brian, I'm changing this one to 'in progress' because there seems to be work on it already, including Vihal's patch. If by any chance you've already merged it, just set it to 'fix committed'.

I'm doing this because I want to leave behind on LP all bugs that are incomplete, invalid, or fix committed/released, so we start on GH only with active bugs. So if I leave this one as 'incomplete', it would get left behind with other ones that are marked incomplete because they are simply missing enough information to even know if they are real bugs.