Hide Python Launcher icon from MacOS dock

Author: amiltonjr

main.py

@@ -148,5 +148,12 @@ def on_exit_tray(tray_icon, item):
     scheduler.QueueHandler()
 
     if tray_icon and platform.system() == "Darwin":
+        from AppKit import NSBundle, NSApp, NSAutoreleasePool, NSApplicationActivationPolicyRegular, NSApplicationActivationPolicyProhibited
+
+        # Hide Python Launcher icon from MacOS dock
+        info = NSBundle.mainBundle().infoDictionary()
+        info["LSUIElement"] = "1"
+        NSApp.setActivationPolicy_(NSApplicationActivationPolicyProhibited)
+
         # For macOS: display the tray icon now with blocking function
         tray_icon.run()