Hi list. I have a situation where I make a PyObject_CallObject call on one thread, and then I watch for keyboard input on a separate thread. When the user hits CTRL-C, this second thread will see it and needs to make it so that the callable being run on the first thread gets "stopped" with a KeyboardInterrupt exception I tried calling Py_AddPendingCall() on the second thread, and passing it a pointer to a function foo.

My first attempt was to make foo call PyErr_SetInterrupt() and PyErr_CheckSignals().

Since this did not work, I rewrote foo to explicitly set the KeyboardInterrupt exception with PyErr_SetString() and returning -1 This worked in the sense that I saw the KeyboardInterrupt come out on screen as a traceback, but it did not stop the function from running.

Am I doing something wrong? Is there even a way to raise an exception "inside" a PyObject_CallObject without the callee doing anything? It would be much preferable that the called python object did not have to do anything in order to be interruptible, but I would be willing to compromise on some simple "make me interruptible" pattern, provided it really is simple.

Thanks for any help.

Enrico Granata ✉ egranata@.com ✆ (408) 972-7683