save project

diy.py

 with open(r"c:\Users\Administrator\Documents\lesson13-1\sales_list.txt","r",encoding='utf-8')as file:
 with open(r"c:\Users\Administrator\Documents\lesson13-1\sales_list.txt","r",encoding='utf-8')as file:
     a=file.readlines()
     a=file.readlines()
     #print(a)
     #print(a)
+list=[]
 for j in a:
 for j in a:
     sum=0
     sum=0
     #print(j)
     #print(j)
@@ -8,5 +9,5 @@ for j in a:
     #print(y[1:])
     #print(y[1:])
     for i in y[1:]:
     for i in y[1:]:
         sum+=int(i)
         sum+=int(i)
-    l=y[0]+str(sum)
+    l=y[0]+str(sum)+'\n'
     print(l)
     print(l)