auto save

diy.py

-with open(r"C:\Users\Administrator\Documents\sales_list.txt.txt","r",(encoding="utf-8"))as line:
-    line.read()
+with open(r"C:\Users\Administrator\Documents\sales_list.txt.txt","r",(encoding="utf-8")as file:
+    file.read()
\ No newline at end of file