save project

diy.py

 with open(r"c:\Users\stu100\Documents\lesson13_2\sales_list.txt","r",encoding="utf-8")as file:
 with open(r"c:\Users\stu100\Documents\lesson13_2\sales_list.txt","r",encoding="utf-8")as file:
     a=file.readlines()
     a=file.readlines()
+sale_list=[]
 for i in a:
 for i in a:
     data=i.split()
     data=i.split()
     #print(data[0])
     #print(data[0])
@@ -7,4 +8,8 @@ for i in a:
     sum=0
     sum=0
     for s in data[1:]:
     for s in data[1:]:
         sum=sum+int(s)
         sum=sum+int(s)
+    result=data[0]+str(sum)+"\n"
+    sale_list.append(result)
     print(data[0]+str(sum))
     print(data[0]+str(sum))
+with open(r"C:\Users\stu100\Desktop\txt.txt","a",encoding="utf-8")as file:
+    file.writelines(sale_list)