save project

diy.py

 with open(r'c:\Users\Administrator\Documents\lesson13-3\sales_list.txt','r',encoding='utf-8')as file:
 with open(r'c:\Users\Administrator\Documents\lesson13-3\sales_list.txt','r',encoding='utf-8')as file:
     a=file.readlines()
     a=file.readlines()
 for i in a:
 for i in a:
-    x=i.split(i='')
+    bata=i.split()
     #print(x[i:])
     #print(x[i:])
     sum=0
     sum=0
-    for sales in x[1:]:
-        sum=sum+sales
-        print(sum)
+    for sales in bata[1:]:
+        sum=sum+int(sales)
+    print(sum)