On Jul 6, 2:47 pm, Philip Semanchuk <phi...@semanchuk.com> wrote: > On Jul 6, 2009, at 5:37 PM, Michael Mossey wrote: > > > What is required in a python program to make sure it catches a > > control- > > c on the command-line? Do some i/o? The OS here is Linux. > > You can use a try/except to catch a KeyboardInterrupt exception, or > you can trap it using the signal > module:http://docs.python.org/library/signal.html > > You want to trap SIGINT. > > HTH > Philip
Thanks to both of you. However, my question is also about whether I need to be doing i/o or some similar operation for my program to notice in any shape or form that Control-C has been pressed. In the past, I've written Python programs that go about their business ignoring Ctrl-C. Other programs respond to it immediately by exiting. I think the difference is that the latter programs are doing i/o. But I want to understand better what the "secret" is to responding to a ctrl-C in any shape or form. For example, does trapping SIGINT always work, regardless of what my process is doing? Thanks, Mike -- http://mail.python.org/mailman/listinfo/python-list
