save project

diy.py

 with open(r'c:\Users\Administrator\Documents\lesson13-4\sales_list.txt','r',encoding='utf-8') as file:
     s = file.readlines()
+final_sum = []
 for i in s:
     data = i.split()
     sum=0
@@ -7,3 +8,5 @@ for i in s:
         sum = sum+int(sales)
     result = data[0]+str(sum)
     final_sum.append(result)
+with open(r'c:\Users\Administrator\Documents\lesson13-4\sales_list.txt','r',encoding='utf-8') as file:
+    file.writelines(final_sum)
\ No newline at end of file