auto save

diy.py

+with open(r'c:\Users\mk\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as abc: 
+    a=abc.readlines()
+new_sum=[]
+for i in a:
+    b=i.split()
+    sum=0
+    for sales in b[1:]:
+        sum=sum+int(sales)
+    result=b[0]+str(sum)+'\n'
+    new_sum.append(result)
+with open(r'C:\Users\mk\Desktop\a.txt','w',encoding='utf-8') as p:
+    p.writelines(new_sum)
\ No newline at end of file