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Tue Apr 3 22:37:52 CEST 2007 · https://mail.python.org/pipermail/python-dev/2007-April/072463.html

"Steven Bethard" <steven.bethard at gmail.com> wrote:
> On 4/3/07, Christian Heimes <lists at cheimes.de> wrote:
> > > I'd be willing to look at adding it, if the group thinks it's the right
> > > thing to do.
> >
> > I like the idea and I'm proposing to add two more methods to subprocess
> > Popen.
> >
> > class Popen(...):
> >     ...
> >     def signal(self, signal):
> >         """Send a signal to the process (UNIX only)
> >
> >         signal is constant from the signal module
> >         """
> >
> >     def terminate(self, force=False):
> >         """Terminate the process
> >
> >         On UNIX terminate(False) is equivalent to signal(SIGTERM) and
> >         terminate(True) to signal(SIGKILL).
> >
> >         On Windows ... (does Windows support a forced terminate?)
> >         """

> 
> Another difference I believe is that TerminateProcess on Windows
> doesn't kill the tree of processes like kill would.  It would be nice
> if Popen.terminate() did the same thing on both Unix and Windows.  (I
> assume that would mean making *all* the appropriate TerminateProcess
> calls.)

To kill child processes on Windows, one must walk the tree and kill
those as well.  wxWidgets has an implementation in src/msw/utils.cpp:
    http://cvs.wxwidgets.org/viewcvs.cgi/wxWidgets/src/msw/utils.cpp

See the differences between wxKill and wxKillAllChildren .  I would also
mention that wxWidgets implements SIGKILL as TerminateProcess(), and
SIGTERM as sending a QUIT message to the process.

 - Josiah

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