auto save

diy.py

+with open(r"C:\Users\XMBC\Documents\lesson13-1\sales_list.txt",'r',encoding="UTF-8") as file:
+    a=file.readlines()
+    print(a)
+    r=[]
+    for i in a:
+        sum=0
+        j=i.split()
+        for k in j[1:]:
+            sum+=int(k)
+        re=j[0]+str(sum)+"\n"
+        r.append(re)
+print(r)
+with open(r"C:\Users\XMBC\Documents\lesson13-1\a.txt",'w',enconding="utf-8") as file:
+   file.writelines(r)
+