auto save

diy.py

 with open(r"c:\Users\EDZ\Desktop\sales_list.txt", "r", encoding = "utf-8") as file1:
 with open(r"c:\Users\EDZ\Desktop\sales_list.txt", "r", encoding = "utf-8") as file1:
-    a = file1.read()
-    print(a)
+    a = file1.readlines()
+    # print(type(a[3:5]))
\ No newline at end of file
+
+new_list = []
+for i in a:
+    c = i.split()
+    sum = 0
+    for sales in c[1:]:
+        sum += int(sales)
+    res = c[0] + str(sum) + "\n"
+    new_list.append(res)
+print(new_list)
+
+with open(r"c:\Users\EDZ\Desktop\newsales_list.txt", "w", encoding = "utf-8") as file2:
+    file2.writelines(new_list)