gui_main: Only prompt updates once per launch

gui/gui_main.py

@@ -183,9 +183,13 @@ class wx_python_gui:
             threading.Thread(target=self.check_for_updates).start()
 
     def check_for_updates(self, event=None):
+        if self.constants.has_checked_updates is True:
+            return
+
         ignore_updates = global_settings.global_settings().read_property("IgnoreAppUpdates")
         if ignore_updates is not True:
             self.constants.ignore_updates = False
+            self.constants.has_checked_updates = True
             dict = updates.check_binary_updates(self.constants).check_binary_updates()
             if dict:
                 for entry in dict:

resources/constants.py

@@ -116,7 +116,8 @@ class Constants:
         self.wxpython_variant = False #     Determine if using wxPython variant
         self.unpack_thread = None  #        Determine if unpack thread finished
         self.cli_mode = False  #            Determine if running in CLI mode
-        self.should_nuke_kdks = True  #       Determine if KDKs should be nuked if unused in /L*/D*/KDKs
+        self.should_nuke_kdks = True  #     Determine if KDKs should be nuked if unused in /L*/D*/KDKs
+        self.has_checked_updates = False  # Determine if check for updates has been run
 
         ## Hardware
         self.computer: device_probe.Computer = None  # type: ignore