auto save

diy.py

 with open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')as file:
-    a=file.read()
+    a=file.readlines()
 for i in a:
     data=i.split()
     print(data[1:])
-
+    sum=0
+    for w in data[1:]:
+        sum=sum+int(w)
+        print(sum)
+        w=data[0]+str(sum)
+        print(w)