save project

diy.py

 with open(r'c:\Users\BBTC\Desktop\sales_list.txt','r',encoding='utf-8') as file:
 with open(r'c:\Users\BBTC\Desktop\sales_list.txt','r',encoding='utf-8') as file:
     a=file.readlines()
     a=file.readlines()
 
 
-final_sum[]
+final_sum=[]
 for i in a:
 for i in a:
     data=i.split()
     data=i.split()
     sum=0
     sum=0