note Python issue that requires checking if SIGINT handler is callable

minrk · minrk · commit f614c3cdfaea · 2015-02-05T10:23:59.000-08:00
diff --git a/IPython/kernel/zmq/parentpoller.py b/IPython/kernel/zmq/parentpoller.py
@@ -132,6 +132,8 @@ def run(self):
                 handle = handles[result - WAIT_OBJECT_0]
 
                 if handle == self.interrupt_handle:
+                    # check if signal handler is callable
+                    # to avoid 'int not callable' error (Python issue #23395)
                     if callable(signal.getsignal(signal.SIGINT)):
                         interrupt_main()
 
