Use is_jupyter from util and remove run_event_loop

src/iminuit/minuit.py

@@ -2314,7 +2314,6 @@ def interactive(
         self,
         plot: Callable = None,
         raise_on_exception=False,
-        run_event_loop=True,
         **kwargs,
     ):
         """
@@ -2352,29 +2351,15 @@ def interactive(
         --------
         Minuit.visualize
         """
-        try:
-            from IPython import get_ipython
-
-            if (
-                get_ipython().__class__.__name__ == "ZMQInteractiveShell"
-                and "IPKernelApp" in get_ipython().config
-            ):
-                is_jupyter = True
-            else:
-                is_jupyter = False
-        except Exception:
-            is_jupyter = False
-
         plot = self._visualize(plot)
 
-        if is_jupyter:
+        if mutil.is_jupyter():
             from iminuit.ipywidget import make_widget
 
-            return make_widget(self, plot, kwargs, raise_on_exception)
         else:
             from iminuit.qtwidget import make_widget
 
-            return make_widget(self, plot, kwargs, raise_on_exception, run_event_loop)
+        return make_widget(self, plot, kwargs, raise_on_exception)
 
     def _free_parameters(self) -> Set[str]:
         return set(mp.name for mp in self._last_state if not mp.is_fixed)