auto save

diy.py

 with open( r"c:\Users\admin\Desktop\sales_list.txt","r",encoding="utf-8")as file:
     a=file.readlines()
     # print(a)
+final_sum=[]
 for i in a:
-    i.split()
-    print(i)
\ No newline at end of file
+    data=i.split()
+    sum=0
+    for sales in data[1:]:
+        sum=sum+int(sales)
+    result=data[0]+str(sum)
+    final_sum.append(result)
+with open(r"c:\Users\admin\Desktop\sales_list.txt","r",encoding="utf-8")as file:
+    a=file.writable(final_sum)
\ No newline at end of file