We talked about this on #twisted for a while, I just wanted to run this past the mailing list to make sure no one has any objections. I propose a new method be added to the IProcess API. The method is signalProcess, and will be used to send signals to process's run in the reactor. The method would look something like this: def signalProcess(self, signalID): """ Send a signal to the process. signalID can be: * one of "HUP", "KILL", "STOP", or "INT". These will be implemented in a cross-platform manner, and so should be used if possible. * an integer, where it represents a POSIX signal ID. """ The strings (or something like that) must be used because other than SIGINT, the windows signal module doesn't define the constants. Any objections? -p -- Paul Swartz (o_ http://twistedmatrix.com/users/z3p.twistd/ //\ z3p@twistedmatrix.com V_/_ AIM: Z3Penguin