More debugging print statements

IPython/terminal/interactiveshell.py

@@ -716,6 +716,7 b' class TerminalInteractiveShell(InteractiveShell):'
             # This hook runs with each cycle of the `prompt_toolkit`'s event loop.
             self.active_eventloop, self._inputhook = get_inputhook_name_and_func(gui)
         else:
+            print(f'Disconnecting event loop {self._inputhook=}')
             self.active_eventloop = self._inputhook = None
 
         # For prompt_toolkit 3.0. We have to create an asyncio event loop with

IPython/terminal/pt_inputhooks/qt.py

@@ -21,6 +21,9 b' def _reclaim_excepthook():'
         sys.excepthook = shell.excepthook
 
 
+announced = 0
+
+
 def inputhook(context):
     global _appref
     app = QtCore.QCoreApplication.instance()
@@ -57,7 +60,14 b' def inputhook(context):'
         QtCore.QTimer.singleShot(0, _reclaim_excepthook)
 
     event_loop = QtCore.QEventLoop(app)
-    print(f'`inputhook` running Qt {QtCore.qVersion()} event loop.\r')
+    global announced
+    if announced == 0:
+        print(f'`inputhook` running Qt {QtCore.qVersion()} event loop.\r')
+        announced += 1
+    elif announced == 10:
+        announced = 0
+    else:
+        announced += 1
     if sys.platform == 'win32':
         # The QSocketNotifier method doesn't appear to work on Windows.
         # Use polling instead.