auto save

diy.py

-with open(r'c:\Users\MC3-06\Desktop\niubi.txt','r',encoding="utf-8") as file:
-    a = file.readlines()
-for i in range(3):
-        for i in a:
-            sum = 0
-            data=i .split()
-        for x in data[1:]:
-            sum = sum+int(x)
-        print(sum)
\ No newline at end of file

sales_list.txt

-with open(r'c:\Users\MC3-06\Desktop\niubi.txt','r',encoding="utf-8") as file:
-    a = file.readlines()
-    for i in a:
-    sum=0
-    data=i .split()
-    for x in data[1:]:
-    sum = sum+x
-print(sum)
\ No newline at end of file
+with open(r'c:\Users\MC3-06\Desktop\)
\ No newline at end of file