Django - 在哪里放置CSV阅读代码

I have an app and I'm working on writing code to let me take a csv file and put it into my database but I can't figure out where to put that code. I'm planning on just using the console to run the .py file that the code is in but I need it to be able to use the Django get_or_create function.I have an app and I'm working on writing code t