auto save

diy.py

 with open(r'C:\Users\Administrator\Desktop\sales_list.txt','r',encoding='utf-8')as file:
 with open(r'C:\Users\Administrator\Desktop\sales_list.txt','r',encoding='utf-8')as file:
     a=file.readlines()
     a=file.readlines()
     #print(a)
     #print(a)
-
+final_a=[]
 for i in a:
 for i in a:
     data=i.split()
     data=i.split()
     #print(data[1:])
     #print(data[1:])
     sum=0
     sum=0
     for sales in data[1:]:
     for sales in data[1:]:
         sum=sum+int(sales)
         sum=sum+int(sales)
-        a=data[0]+str(sum)
-    print(a)
-with open(r'C:\Users\Administrator\Desktop\sales_list.txt','r',encoding='utf-8')as file:
-    file.writelines()
+    a=data[0]+str(sum)+'\n'
+    final_a.append(a)
+with open(r'C:\Users\Administrator\Desktop\new_sales_list.txt','a',encoding='utf-8')as file:
+    file.writelines(final_a)
\ No newline at end of file
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