save project

diy.py

 with open(r"C:\Users\lenovo\Documents\lesson13-1\sales_list.txt",'r',encoding='utf-8') as file:
 with open(r"C:\Users\lenovo\Documents\lesson13-1\sales_list.txt",'r',encoding='utf-8') as file:
-as file:
+
     a=file.readlines()
     a=file.readlines()
 
 
 for i in a: 
 for i in a: