Update app.py

app.py

@@ -32,12 +32,21 @@ def run_and_submit_all(username):
     if not username:
         return "Please enter your Hugging Face username.", None
 
-    # Fetch questions
+        # Fetch questions
     try:
         resp = requests.get(f"{DEFAULT_API_URL}/questions", timeout=15)
+        # Handle rate limiting specifically
+        if resp.status_code == 429:
+            return "Server rate limited the requests. Please wait a moment and try again.", None
         resp.raise_for_status()
         questions = resp.json()
-    except Exception as e:
+    except requests.exceptions.HTTPError as e:
+        # Specific HTTP errors not caught above
+        status_code = getattr(e.response, 'status_code', None)
+        if status_code == 429:
+            return "Server rate limited the requests. Please wait a moment and try again.", None
+        return f"Error fetching questions: {e}", None
+    except requests.exceptions.RequestException as e:
         return f"Error fetching questions: {e}", None
 
     # Run agent on all questions