How to interrupt a runaway ipython evaluation with

问题:

Sometimes it happens that an ongoing ipython evaluation won't respond to one, or even several, Ctrl-C's from the keyboard¹.

Is there some other way to goose the ipython process to abort the current evaluation, and come back to its "read" state?

Maybe with kill -SOMESECRETSIGNAL <pid>? I've tried a few (SIGINT, SIGTERM, SIGUSR1, ...) to no avail: either they have no effect (e.g. SIGINT), or they kill the ipython process. Or maybe some arcane ipython configuration? Some sentinel file? ... ?

¹_{"Promptly enough", that is. Of course, it is impossible to specify precisely how promptly is "promptly enough"; it depends on the situation, the reliability of the delay's duration, the temperament of the user, the day's pickings at Hacker News, etc.}

回答1:

It depends on where execution is occurring when you decide to interrupt (in a python function, in a lower level library,...). If this commonly occurs within a function you have created, you can try putting a try/except block in the function and catching KeyboardInterrupt exceptions. It may not break out of a low level library (if that is indeed where you are running) but it should prevent the ipython interpreter from exiting.