save project

diy.py

 while open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')as file:
     a=file.readline()
+final_sum=()
 for i in a:
     data=i.split()
     sum=0
     for sales in data[1:]:
         sum=sum+sales
-    result=data[0]+str(sum)
-    print(result)
\ No newline at end of file
+    result=data[0]+str(sum)=\n'
+    final_sum.append(result)
+while open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')as file:
+    file.writelines(final_sum)  
\ No newline at end of file