Update app.py

app.py

@@ -315,26 +315,25 @@ if __name__ == "__main__":
         
         print("Thank you for using the Python App Builder. Goodbye!")
 
-    def _print_welcome_message(self):
-        print("Welcome to the Python App Builder!")
-        print("Type 'help' to see the available commands.")
-        print("Type 'launch' to build and launch the Gradio app.")
-        print("Type 'exit' to quit the application.")
-        print("-" * 50)
-
     def _get_user_input(self):
-        return input("Enter input: ").strip()
-
-    def _display_output(self, output, system_message):
-        if output:
-            print(output)
-        if system_message:
-            print(system_message)
+        try:
+            return input("Enter input: ").strip()
+        except EOFError:
+            print("Error: Input stream closed unexpectedly.")
+            return ""
+        except Exception as e:
+            print(f"Error reading input: {str(e)}")
+            return ""
 
     def launch_app(self):
+        print("Launching app...")
         demo = self.build_app()
         print(f"Demo object type: {type(demo)}")
-        demo.launch()
+        try:
+            demo.launch()
+            print("App launched successfully.")
+        except Exception as e:
+            print(f"Error launching app: {str(e)}")
 
 def main():
     try: