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)
-
+c=[]
 for i in a:
 for i in a:
     data=i.split()
     data=i.split()
-    #print(data[1:])
     sum=0
     sum=0
-    for i in data[1:]:
-        sum=sum+int() 
+    for sales in data[1:]:
+        sum=sum+int(sales)
+        b=data[0]+str(sum)+"/n"
+    c=append(d)
+    writelines(c)
+    
+
         
         
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