save project

did2.py

+final_list=[]
 with open("sales_list.txt","r",encoding="utf_8") as file:
     f=file.readlines()
     for i in f:
         data = i.split(" ")
         sum = 0
         for num in data[1:]:
-            if num not in {'\n','',''}:
+            if num not in ['\n','','']:
                 sum += int(num)
-        print(data[0]+str(sum))
-    file.close()
\ No newline at end of file
+        final_list.append(data[0]+str(sum)+'\n')
+    file.close()
+
+with open("sales_list.txt","r",encoding="utf_8") as file2:
+    file2.writelines(final_list)
+    file2.close()
\ No newline at end of file