When Python console exceeds CPU time limit it doesn't return "CPU Time Limit Exceeded" error

[David Coles]

Enter the following into the IVLE console:

>>> while True:
... pass
...
Console Restart: Communication to console process lost

There is code already in services/python-console to catch the SIGXCPU signal and trigger a clean termination. Expected result:

>>> while True:
... pass
...
Console Restart: CPU Time Limit Exceeded

[David Coles (dcoles)]

Entering something like this will work:

>>> i = 0
>>> while True:
... i = i+1
... if i % 100000 == 0:
... print i

The issue here is that the termination should not have to wait for previous operation to complete. This is the same issue that prevents 'while True: pass' from being interuptable.

[David Coles (dcoles)]

This is not able to be fixed until lp:523084 is, due to there being no way to reliably interrupt the python-console in its current incarnation.