Update app.py

app.py

@@ -91,10 +91,11 @@ def extract_features_from_file(file):
         content = file.read().decode("utf-8").strip()
         values = [float(x) for x in content.replace(",", " ").split()]
         if len(values) != 30:
-            return "❌ File must contain exactly 30 numbers."
-        return {f"feature_{i}": values[i] for i in range(30)}
+            raise ValueError("Expected 30 values, got {}".format(len(values)))
+        return values  # must return a list of 30 floats
     except Exception as e:
-        return f"❌ Error: {e}"
+        print(f"Error reading file: {e}")
+        return [None] * 30  # return empty values for safety
 
 # --- UI with Gradio ---
 with gr.Blocks() as demo: