Update app.py

app.py

@@ -203,16 +203,21 @@ def clean_answer(answer):
     return clean[0].upper() if clean else None
 
 def update_leaderboard(results):
-    new_entry = {
-        "Model Name": results['model_name'],
-        "Overall Accuracy": round(results['overall_accuracy'] * 100, 2),
-        "Valid Accuracy": round(results['valid_accuracy'] * 100, 2),
-        "Correct Predictions": results['correct_predictions'],
-        "Total Questions": results['total_questions'],
-        "Timestamp": datetime.now().strftime("%Y-%m-%d %H:%M:%S"),
-    }
-    new_entry_df = pd.DataFrame([new_entry])
-    new_entry_df.to_csv(LEADERBOARD_FILE, mode='a', index=False, header=False)
+    try:
+        new_entry = {
+            "Model Name": results['model_name'],
+            "Overall Accuracy": round(results['overall_accuracy'] * 100, 2),
+            "Valid Accuracy": round(results['valid_accuracy'] * 100, 2),
+            "Correct Predictions": results['correct_predictions'],
+            "Total Questions": results['total_questions'],
+            "Timestamp": datetime.now().strftime("%Y-%m-%d %H:%M:%S"),
+        }
+        new_entry_df = pd.DataFrame([new_entry])
+        new_entry_df.to_csv(LEADERBOARD_FILE, mode='a', index=False, header=not os.path.exists(LEADERBOARD_FILE))
+        print("Leaderboard updated successfully!")
+    except Exception as e:
+        print(f"Error while updating leaderboard: {e}")
+
 
 def load_leaderboard():
     if not os.path.exists(LEADERBOARD_FILE) or os.stat(LEADERBOARD_FILE).st_size == 0: