Update app.py

app.py

@@ -15,11 +15,17 @@ def main():
         # Ensure there are no import errors
         import app
 
-        print("App module is correctly named, has no syntax errors, and no import errors.")
+        # Ensure the app attribute exists in the app module
+        if not hasattr(app, "app"):
+            raise AttributeError(f"Attribute 'app' not found in module '{app_module}'.")
+
+        print("App module is correctly named, has no syntax errors, no import errors, and contains the 'app' attribute.")
     except ImportError as e:
         print(f"ImportError: {e}")
     except SyntaxError as e:
         print(f"SyntaxError: {e}")
+    except AttributeError as e:
+        print(f"AttributeError: {e}")
     except Exception as e:
         print(f"Error: {e}")