[issue25942] subprocess.call SIGKILLs too liberally

[Martin Panter]

Martin Panter added the comment:

Even if we can’t agree on any behaviour change, I think it might be worth documenting how these functions behave on exceptions (interrupts) other than TimeoutExpired. Currently all I can find is “If the timeout expires, the child process will be killed and waited for.” I think this could be expanded to also say what happens if the parent is interrupted by a signal such as KeyboardInterrupt:

* Current behaviour: Immediately kill child (i.e. timeout expiry is not special)

* Previous behaviour: Return without waiting for child, which will become a zombie

* Mike’s proposal: Wait indefinitely for child without killing it, which could defeat the purpose of the timeout, especially if the child ignores or does not receive the same signal as the parent

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue25942>
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