save project

diy.py

@@ -11,7 +11,7 @@ for i in a:
                 sum=sum+int(sales)
         result=data[0]+str(sum)+'\n'
         final_sum.append(result)
-with open(r'C:\Users\Administrator\Documents\lesson13_2\sales_list.txt','r',encoding='utf_8') as file:
+with open(r'C:\Users\Administrator\Documents\lesson13_2\sales_list.txt','a',encoding='utf_8') as file:
         file.writelines(final_sum)
         #print(data[0])
         #print(data[1:])
\ No newline at end of file