Update app.py

app.py

@@ -42,6 +42,9 @@ else:
 # Plot accuracy history
 if "accuracy" in history_dict and "val_accuracy" in history_dict:
     try:
+        plot_dir = os.path.join(os.getcwd(), "static")
+        os.makedirs(plot_dir, exist_ok=True)  # ✅ ensure directory is writable
+
         plt.plot(history_dict['accuracy'], label='Train Accuracy')
         plt.plot(history_dict['val_accuracy'], label='Val Accuracy')
         plt.xlabel('Epochs')
@@ -49,10 +52,10 @@ if "accuracy" in history_dict and "val_accuracy" in history_dict:
         plt.title('Training History')
         plt.legend()
         plt.grid(True)
-        os.makedirs("static", exist_ok=True)
-        plt.savefig("static/training_plot.png")
+        plot_path = os.path.join(plot_dir, "training_plot.png")
+        plt.savefig(plot_path)  # ✅ safe full path
         plt.close()
-        logger.info("Generated training history plot at static/training_plot.png")
+        logger.info("Generated training history plot at %s", plot_path)
     except Exception as e:
         logger.error("Failed to generate training plot: %s", str(e))