save project

diy.py

 with open('c:\\Users\\Lenovo-\\Documents\\lesson13-1\\sales_list.txt','r',encoding='utf-8')as fill:
     a=fill.readlines()
+sum2=[]    
 for i in a:
     data=i.split()
     sum=0
     for r in data[1:]:
         sum=sum+int(r)
-    sum1=data[0]+str(sum)
-    print(sum1)
\ No newline at end of file
+    sum1=data[0]+str(sum)+'\n'
+    sum2.append(sum1)
+with open('c:\\Users\\Lenovo-\\Documents\\lesson13-1\\sales_list.txt','a',encoding='utf-8')as fill:
+    a=fill.writelines(sum2)    
\ No newline at end of file