WIP: try out letting the root cs alone, tear down guest mode

piker/ui/_window.py

@@ -18,14 +18,13 @@
 Qt main window singletons and stuff.
 
 """
-import os
-import signal
+# import os
+# import signal
 import time
 from typing import Callable, Optional, Union
 import uuid
 
-from pyqtgraph import QtGui
-from PyQt5 import QtCore, QtWidgets
+from pyqtgraph import QtGui, QtCore
 from PyQt5.QtWidgets import QLabel, QStatusBar
 
 from ..log import get_logger
@@ -179,15 +178,17 @@ def mode_label(self) -> QtGui.QLabel:
 
         return self._status_label
 
-    def closeEvent(
-        self,
-        event: QtGui.QCloseEvent,
-    ) -> None:
-        """Cancel the root actor asap.
+    # def closeEvent(
+    #     self,
 
-        """
-        # raising KBI seems to get intercepted by by Qt so just use the system.
-        os.kill(os.getpid(), signal.SIGINT)
+    #     event: QtGui.QCloseEvent,
+
+    # ) -> None:
+    #     '''Cancel the root actor asap.
+
+    #     '''
+    #     # raising KBI seems to get intercepted by by Qt so just use the system.
+    #     os.kill(os.getpid(), signal.SIGINT)
 
     @property
     def status_bar(self) -> QStatusBar: