Protect against launching apps with import-time errors crashing launcher

Author: MatthewWilkes

modules/system/launcher/app.py

@@ -12,12 +12,15 @@
     RequestStartAppEvent,
     RequestStopAppEvent,
 )
+from system.notification.events import ShowNotificationEvent
 
 APP_DIR = "/apps"
 
+
 class InstallNotificationEvent(Event):
     pass
 
+
 def path_isfile(path):
     # Wow totally an elegant way to do os.path.isfile...
     try:
@@ -86,8 +89,10 @@ def __init__(self):
         self.update_menu()
         self._apps = {}
         eventbus.on_async(RequestStopAppEvent, self._handle_stop_app, self)
-        eventbus.on_async(InstallNotificationEvent, self._handle_refresh_notifications, self)
-    
+        eventbus.on_async(
+            InstallNotificationEvent, self._handle_refresh_notifications, self
+        )
+
     async def _handle_refresh_notifications(self, _):
         self.update_menu()
 
@@ -146,8 +151,14 @@ def launch(self, item):
         print(self._apps)
         if app is None:
             print(f"Creating app {app_id}...")
-            module = __import__(module_name, None, None, (fn,))
-            app = getattr(module, fn)()
+            try:
+                module = __import__(module_name, None, None, (fn,))
+                app = getattr(module, fn)()
+            except Exception:
+                eventbus.emit(
+                    ShowNotificationEvent(message=f"{item["name"]} has crashed")
+                )
+                return
             self._apps[app_id] = app
             eventbus.emit(RequestStartAppEvent(app, foreground=True))
         else: