save project

diy.py

 with open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf_8') as file:
     a=file.readlines()
-
+boo=[]
 for i in a:
     data=i.split()
     # print(data)
@@ -9,7 +9,8 @@ for i in a:
         sum+=int(f)
     k=data[0]+str(sum)
     print(k)
-
+with open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf_8') as file:
+    file.writelines(boo)