update

app.py

@@ -89,6 +89,11 @@ def index():
             random.seed(seed)
             all_samples = load_samples(method)
             selected_samples = select_balanced_samples(all_samples)
+            logger.info(f"Number of selected samples: {len(selected_samples)}")  # Log the number of samples
+            if len(selected_samples) == 0:
+                logger.error("No samples were selected.")
+                return "No samples were selected", 500
+
             random_string = generate_random_string()
             filename = f'{username}_{seed}_{method}_{random_string}.json'
 
@@ -104,7 +109,6 @@ def index():
             return "An error occurred", 500
     return render_template('index.html')
 
-
 @app.route('/experiment/<username>/<sample_index>/<seed>/<filename>', methods=['GET'])
 def experiment(username, sample_index, seed, filename):
     try: