bpo-23395: Fix PyErr_SetInterrupt if the SIGINT signal is ignored or not handled (GH-7778)
``_thread.interrupt_main()`` now avoids setting the Python error status if the ``SIGINT`` signal is ignored or not handled by Python.
diff --git a/Modules/signalmodule.c b/Modules/signalmodule.c
index b5e6250..221b74f 100644
--- a/Modules/signalmodule.c
+++ b/Modules/signalmodule.c
@@ -1683,13 +1683,18 @@
}
-/* Replacements for intrcheck.c functionality
- * Declared in pyerrors.h
- */
+/* Simulate the effect of a signal.SIGINT signal arriving. The next time
+ PyErr_CheckSignals is called, the Python SIGINT signal handler will be
+ raised.
+
+ Missing signal handler for the SIGINT signal is silently ignored. */
void
PyErr_SetInterrupt(void)
{
- trip_signal(SIGINT);
+ if ((Handlers[SIGINT].func != IgnoreHandler) &&
+ (Handlers[SIGINT].func != DefaultHandler)) {
+ trip_signal(SIGINT);
+ }
}
void