save project

diy.py

@@ -8,5 +8,5 @@ for i in a:
         sum=sum+int(sales)+'\n'
         sum=sum+int(sales)+'\n'
     result=data[0]+str(sum)
     result=data[0]+str(sum)
     print(result)
     print(result)
-with open(r'C:\Users\A1\Documents\new_salelist.txt','r',encoding='utf-8')as file:
+with open(r'C:\Users\A1\Documents\new_salelist.txt','a',encoding='utf-8')as file:
     file.writelines(final_sum)
     file.writelines(final_sum)
\ No newline at end of file