Update src/streamlit_app.py

src/streamlit_app.py

@@ -12,14 +12,13 @@ os.makedirs("submissions", exist_ok=True)
 # --- Submission Logic ---
 def handle_submission(file):
     if file is None:
-        return "❌ No file uploaded.", None
+        return "❌ No file uploaded.", "<p>No leaderboard to show.</p>"
 
-    # Generate timestamped filename
+    # Save file
     timestamp = datetime.datetime.now().isoformat().replace(":", "_")
     submission_filename = f"{timestamp}_{file.name}"
     submission_path = os.path.join("submissions", submission_filename)
 
-    # Save file
     with open(submission_path, "wb") as f:
         f.write(file.read())
 
@@ -29,8 +28,9 @@ def handle_submission(file):
     except Exception as e:
         status = f"⚠️ Failed to upload to Google Drive: {e}"
 
-    # Return status and updated leaderboard
-    return status, get_leaderboard_html()
+    leaderboard_html = get_leaderboard_html()
+    return status, leaderboard_html
+
 
 
 # --- Leaderboard Logic ---