All: I am maintaining a program in Python 2 and need to send it a KeyboardInterrupt to close it. Unfortunately, the program is used as a subprocess in a wrapper subprocess, and so I cannot just directly press CTL-C; I have to use a signal.
When I run the program "bare" (not in a subprocess), I have found that raising a SIGINT (kill -2) raises a KeyboardInterrupt in the program. But when I run the program in the wrapper process, kill -2 no longer has any effect (whether it is raised by the wrapper or externally). Why is that the case? Does Python's interpretation of SIGINT as a KeyboardInterrupt only obtain when the program is run in a terminal? Is there something else I'm missing? Bonus points: Is this behavior the same for Python 3? MCL
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