[Python-Dev] Poking about issue 1677

[Tim Golden]

I can confirm that there is a race condition between the code in 
myreadline.c and the signal_handler. I have a patch in readiness which 
basically loops until the signal has been tripped.

But what I don't know is: what to do if the signal *still* doesn't trip 
(after 100 millisecond-retries)? At present the code just drops through 
(with a comment warning) which is why we're seeing the interpreter exit.
What should happen, though? Raise SystemError?