@ccordoba12's suggestions

IPython/terminal/interactiveshell.py

@@ -920,7 +920,7 b' class TerminalInteractiveShell(InteractiveShell):'
         if self._inputhook is not None and gui is not None:
             print(
                 f"Shell is already running a gui event loop for {self.active_eventloop}. "
-                "Call with no arguments to disable current loop."
+                "Call with no arguments to disable the current loop."
             )
             return
         if self._inputhook is not None and gui is None:

IPython/terminal/pt_inputhooks/__init__.py

@@ -111,7 +111,8 b' def set_qt_api(gui):'
                 del os.environ["QT_API"]
         else:
             print(f'Unrecognized Qt version: {gui}. Should be "qt5", "qt6", or "qt".')
-            return None
+            return
+
         # Import it now so we can figure out which version it is.
         from IPython.external.qt_for_kernel import QT_API