diff --git a/general_function.py b/general_function.py
index b9a8dde..177952d 100644
--- a/general_function.py
+++ b/general_function.py
@@ -1,5 +1,6 @@
 import json
 from operator import concat
+import os
 
 def read_json_file(path, name):
     try: