save project

diy.py

 with open (r'c:\Users\Charles\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')as file:
     a=file.readlines()
+    final_sum=[]
+
     for i in a:
         f=i.split()
         #print(f[1:])
         sum=0
         for l in f[1:]:
             sum=sum+int(l)
-        l=f[0]+str(sum)
-        print(l)
+        l=f[0]+str(sum)+'\n'
+        final_sum.append(l)
+    with open (r'c:\Users\Charles\Documents\lesson14-1\sales_list.txt','r',encoding='utf-8')as file:
+        file.writelines(final_sum)
+
+