Update app.py

app.py

@@ -342,12 +342,19 @@ Dog {i}: Detected with moderate confidence. Here are the top 3 possible breeds:
                     buttons.append(f"More about Dog {i}: {breed}")
 
         final_explanation = "\n\n---\n\n".join(explanations)
-        return final_explanation, annotated_image, gr.update(visible=True, choices=buttons), gr.update(visible=False), gr.update(visible=False)
+        
+        if buttons:
+            return final_explanation, annotated_image, gr.update(visible=True, choices=buttons), gr.update(visible=False), gr.update(visible=False)
+        else:
+            return final_explanation, annotated_image, gr.update(visible=False), gr.update(visible=False), gr.update(visible=False)
 
     except Exception as e:
         return f"An error occurred: {e}", None, gr.update(visible=False), gr.update(visible=False), gr.update(visible=False)
 
 def show_details(choice):
+    if not choice:
+        return "Please select a breed to view details."
+    
     try:
         _, breed = choice.split(": ", 1)
         description = get_dog_description(breed)