save project

diy.py

 with open(r'C:\Users\CM\Desktop\sales_list.txt','r',encoding='utf-8')as file:
     a=file.readlines()
-
+wasd=[]
 for i in a:
     print(i)
     data=i.split()
     print(data[1:])
     for sales in data[1:]:
         sum=sum+int(sales)
-    result=data[0]+str(sum)
-    print(result)
\ No newline at end of file
+    result=data[0]+str(sum)+'\n'
+    wasd.append(result)
+    print(result)
+with open(r'C:\Users\CM\Desktop\sales_list.txt','w',encoding='utf-8')as file:
+    file.writelines(wasd)
\ No newline at end of file