auto save

diy.py

 with open(r'c:\Users\Windows 10\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as a:
 with open(r'c:\Users\Windows 10\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as a:
     b=a.readlines()
     b=a.readlines()
 
 
+hhh=[]
 for i in b:
 for i in b:
     bata=i.split()
     bata=i.split()
     sum=0
     sum=0
     for sb in bata[1:]:
     for sb in bata[1:]:
         sum=sum+int(sb)
         sum=sum+int(sb)
-    sa=bata[0]+str(sum)
-    print(sa)
+    sa=bata[0]+str(sum)+'\n'
+    hhh.append(sa)
+
+with open(r'c:\Users\Windows 10\Documents\lesson13-1\sales_list.txt','w',encoding='utf-8') as a:
+    a.writelines(hhh)
+
+
+    
     
     
\ No newline at end of file