finished app no frills

app.py

@@ -106,6 +106,7 @@ def train_and_inference(api_key, ontology_id, model_run_id):
         with open(os.path.join(destination_folder, filename), 'wb') as file:
             for chunk in response.iter_content(8192):
                 file.write(chunk)
+        file.close()
 
     BASE_DIR = 'dataset'