save project

use.py

-file=open(r'c:users/cm/documens/lesson13-1/sales_list.'r'-8)as file
+with open(r'c:users/cm/documens/lesson13-1/sales_list.'r'-8)as file
 a=file.readlints()
 
-
+final_sum=[]
 for i in a:
     data=i.split()
     sum=0
     for salis in data(1:)
-    sum=sum+int(seles)
-
-    
-    print(result)
\ No newline at end of file
+    sum=sum+int(seles
+    print(result)
+ with open(r'c:users/cm/documens/lesson13-1/sales_list.'r'-8)as file
+ file.writelines(final_sum)   
\ No newline at end of file