Django数据库看门狗在django外面保存信号

I have the following problem: I Am using a Django framework. One of the parts in a system (non-django) writes to the database, in the same database that django is using. I want to have a signal when an object is being saved. It's a django model object but not saved via django, but directly in the mysql database.I have the following problem: I Am using a Djan