auto save

diy.py

 with open("c:\\Users\\XMBC\\Documents\\lesson13-1\\sales_list.txt",'r',encoding='utf-8') as f1:
 with open("c:\\Users\\XMBC\\Documents\\lesson13-1\\sales_list.txt",'r',encoding='utf-8') as f1:
     a=f1.readlines()
     a=f1.readlines()
+j=[]
 for i in a:
 for i in a:
     s=i.split()
     s=i.split()
     #print(s[1:])
     #print(s[1:])
     q=0
     q=0
-    j=[]
+    
     for d in s[1:]:
     for d in s[1:]:
         q=q+int(d)
         q=q+int(d)
        
        
     j.append(s[0]+str(q)+'\n')
     j.append(s[0]+str(q)+'\n')
-    
 
 
-with open(r"C:\Users\XMBC\Desktop\blackery.txt",'a',encoding='utf-8') as m:
+
+with open(r"C:\Users\XMBC\Desktop\blackery.txt",'w',encoding='utf-8') as m:
     m.writelines(j)
     m.writelines(j)